Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: davbell22602 on December 20, 2012, 07:50:27 pm

Title: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 20, 2012, 07:50:27 pm
Is the husky 42 same as the 42 special?
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on December 20, 2012, 08:33:47 pm
Moved this to here. 
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 20, 2012, 09:18:50 pm
Ok thanks.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on December 20, 2012, 10:32:52 pm
Basically the same for sure, but I don't know the details. Both were a "lesser" (likely open port) version of the 242/242xp.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Magnus on December 21, 2012, 07:34:38 am
The 42Special I have seen here all were same as 242, piston ported...
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 08:27:52 am
So what model do I use for bar and chain fitment? The oregon OPEfor1 and Stihl bar chain catalogs dont have a 42 listed for a model. They have 242 but there 2 types chain used. 325 058 or 3/8 050. What max size of bar length can be used? 20in bar?
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 09:10:19 am
What bar is on the chainsaw now?

If no bar what is the chain pitch of the sprocket?  - Take a chain and fit it around the sprocket and see if all the drivers on the chain will mesh with the teeth of the sprocket or rim, you have the pitch chain.

Th wrong chain will obviously not fit the sprocket.

To know what pitch your chain is, measure the distance across three chain rivets and divide by two.

Chain sprockets are not sensitive to chain gage, i.e. .050", .058", or .063". but chainsaw bar are?

In this area you can not give away .058 gage chain or bars but in the North Eastern states, every one uses .058" gage.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 09:24:10 am
What bar is on the chainsaw now?

If no bar what is the chain pitch of the sprocket?  - Take a chain and fit it around the sprocket and see if all the drivers on the chain will mesh with the teeth of the sprocket or rim, you have the pitch chain.

Th wrong chain will obviously not fit the sprocket.

To know what pitch your chain is, measure the distance across three chain rivets and divide by two.

Chain sprockets are not sensitive to chain gage, i.e. .050", .058", or .063". but chainsaw bar are?

In this area you can not give away .058 gage chain or bars but in the North Eastern states, every one uses .058" gage.

16in is on it now.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 10:20:09 am
And can you get any numbers from the bar?

What chain is on the bar?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 11:48:22 am
And can you get any numbers from the bar?

What chain is on the bar?

The bar is well used. All I could make out was 058. The chain 2B stamped on each of the drag links.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 12:09:58 pm
Well we know it is .058 gage chain

If you could measure the pitch, we could determine all the rest? Measure across three rivets and divide by two?

I can not match up 2B to anything
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on December 21, 2012, 01:19:28 pm
I found a B2 for carlton 404 chain 058. No way someone was running that on a 42 were they?   http://chainsawrepair.createaforum.com/chain/chain-id-chart/
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 01:26:01 pm
I saw that on the "404" chain too but dismissed it as that chainsaw never had "404" chain.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 01:28:27 pm
I would bet on K2
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 01:29:58 pm
I got 7/8 when measuring across 3 rivets.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 02:02:46 pm
.404 X 2 = .808

7/8 = .875/2 = .437 which is not a valid chain size

3/8 = .375 X 2 = 3/4  so if the chain measured 3/4" across three rivets it would be 3/8"  pitch

.325 X 2 = .650 and if the chain measured a little more than 5/8" across three rivets it would be .325 chain

When you look at the rivets and their spacing, there is a short interval and a long interval between the rivets. So you have to add up a long interval and a short interval and divide by two to get the chain pitch.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 02:08:34 pm
.404 X 2 = .808

7/8 = .875/2 = .437 which is not a valid chain size

3/8 = .375 X 2 = 3/4  so if the chain measured 3/4" across three rivets it would be 3/8"  pitch

.325 X 2 = .650 and if the chain measured a little more than 5/8" across three rivets it would be .325 chain

When you look at the rivets and their spacing, there is a short interval and a long interval between the rivets. So you have to add up a long interval and a short interval and divide by two to get the chain pitch.

Its a .325 pitch chain.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 02:10:16 pm
http://www.youtube.com/watch?v=IIz66xfdViM

http://www.youtube.com/watch?v=eDYUvn6tTIE

Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 02:12:22 pm
copy and pasted to go with pic below.

How to measure your chainsaw chain

How To Measure Your Chain

Heres a quick little guide on how to measure up your chainsaw chain, and to see what you need to look for when buying a chain for your chainsaw (your bar size is also needed) -

1. Count the number of drive links on your chain

A drive link is the "tooth" on the bottom of your chainsaw chain that slots into the groove of the bar. The number of teeth, or drive links, equals the length of the chain.

Write down this number.

2. Find the pitch of your chain

The pitch is the distance in inches between any three rivets, divided by 2. The rivets are the "bolts" holding the links of your chain together.

The best way to find the pitch of your chain is in your product manual.
The most common pitches are 3/8" low profile, .325", 3/8" and .404"

It is possible to measure the pitch of a brand new chain however it is not adivsed to try and measure the pitch of a used chain. The difference between different pitches is very minute and when a chain is used it will cause stretching, distorting the measurement.

To calculate the pitch of your new chain you need to measure the distance from the centre of the first rivet to the centre of the third rivet.

Divide this length in half and write down this number.

**SEE DIAGRAM BELOW

3. Measure your chain's gauge in inches and write it down

The chain gauge is the width of the notch in the drive link where the link fits into the groove of the bar guide. This will be a very small number, around 0.050 or 0.063 of an inch for example, and must match the gauge of the guide bar.
The most common gauges for chainsaw chain are .043", .050", .058" and .063"
Try to find the gauge of your chain by looking in the saw's manual. If you have no luck with the manual then check to see if the gauge is displayed somewhere on your chainsaw bar.
If you have a brand new chain, you could try measuring the gauge using a micrometer.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 02:14:50 pm
Best one yet. Oregon how to chain.    http://www.oregonproducts.com/homeowner/AppGuideMoreInfo_consumer.htm
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 02:20:25 pm
You need to count your drivers on the chain. It is going to be somewhere between 62 and 67 drivers?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 02:23:46 pm
I'm totally confused on what chain and bar this has now or what its supposed to have. I found the sticker on the air/cylinder cover. It says recommended bar 20" and 33SL/LG chain by oregon.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 02:38:09 pm
But you said that your chainsaw has a 16" Long  X .325" pitch X .058 Gage bar and chain? Now we need to determine how many driver links are on the chain?

A 40cc chainsaw is more than likely to run better with a 16" bar than a 20" bar?

To determine what length bar you have, you need to measure from the front of the chainsaw to the tip of the bar?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 02:48:15 pm
I took the bar and chain off. I found odd number of drag links which came out at 67. These drag links got alot scratches on them like a 50 chain was used in 58 gauge bar. I got 7 spur sprocket. I measured 16in on the bar.

Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 02:58:34 pm
Around here in Ohio people use .050 chains on .058 bars all the time. You cannot buy .058" chain around here unless you order it.

So you have a 16" long X .325" pitch X .058" gage X 67 DL bar and chain.

A seven tooth spur sprocket is very common.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 03:02:23 pm
Around here in Ohio people use .050 chains on .058 bars all the time. You cannot buy .058" chain around here unless you order it.

So you have a 16" long X .325" pitch X .058" gage X 67 DL bar and chain.

A seven tooth spur sprocket is very common.

Ok thanks. I gotta replace bar anyways. So do I get 50 or 58 gauge?
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 03:20:36 pm
In this area (Ohio) there would be no doubt about it it I would get a .050" gage bar.

I don't know how it is there where you live? But I would have to assume that .050" would be more popular?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 03:27:15 pm
In this area (Ohio) there would be no doubt about it it I would get a .050" gage bar.

I don't know how it is there where you live? But I would have to assume that .050" would be more popular?

Yea. I think whats its like here too .050 gauge on all types of chain and bars.
Title: Husqvarna Part Numbers
Post by: davbell22602 on December 21, 2012, 04:34:59 pm
Is there a way to cross reference husky part numbers to poulan part numbers?
Title: Re: Husqvarna Part Numbers
Post by: 660magnum on December 21, 2012, 04:41:50 pm
It has been done by other members on here.

You need the illustrated parts list of the Poulan and the likely Husqvarna saws and compare pictures and part numbers.

The equivalent Poulan parts are typically cheaper than the Husky parts
Title: Re: Husqvarna Part Numbers
Post by: davbell22602 on December 21, 2012, 04:51:59 pm
I need one for the 42 special. I need spur sprocket assy and clutch assy.
Title: Re: Husqvarna Part Numbers
Post by: Cut4fun . on December 21, 2012, 04:56:23 pm
I need one for the 24 special. I need spur sprocket assy and clutch assy.


Whats 24 special?
Title: Re: Husqvarna Part Numbers
Post by: davbell22602 on December 21, 2012, 05:42:41 pm
I need one for the 24 special. I need spur sprocket assy and clutch assy.


Whats 24 special?

Fixed. 42 special
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on December 21, 2012, 06:20:08 pm
I need one for the 24 special. I need spur sprocket assy and clutch assy.


Whats 24 special?

Fixed. 42 special

Went ahead and merged both threads since it's the 42.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on December 21, 2012, 06:26:22 pm
husqvarna 42 special chainsaw clutch sprocket assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-sprocket-assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-mechanism-washer



Husqvarna 42, 133, 234, 238, 242 (before serial # 3441001) ask Scott username chainsawr  or someone else that knows.

http://store.chainsawr.com/products/husqvarna-42-133-234-238-242-chainsaw-herr-325-7t-spur-sprocket-drum-new-pn-n268-l7



Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 06:32:20 pm
I need one for the 24 special. I need spur sprocket assy and clutch assy.


Whats 24 special?

Fixed. 42 special

Went ahead and merged both threads since it's the 42.

You got me all confused merging them together. Now this whole thread is spinning in circles.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 06:36:41 pm
husqvarna 42 special chainsaw clutch sprocket assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-sprocket-assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-mechanism-washer



Husqvarna 42, 133, 234, 238, 242 (before serial # 3441001) ask Scott username chainsawr  or someone else that knows.

http://store.chainsawr.com/products/husqvarna-42-133-234-238-242-chainsaw-herr-325-7t-spur-sprocket-drum-new-pn-n268-l7





I wasnt looking for used but thanks for looking though.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 06:42:46 pm
Husqvarna 42 IPL  http://s30387.gridserver.com/partsDiagrams/Husqvarna%2042.pdf
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on December 21, 2012, 06:46:05 pm
husqvarna 42 special chainsaw clutch sprocket assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-sprocket-assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-mechanism-washer



Husqvarna 42, 133, 234, 238, 242 (before serial # 3441001) ask Scott username chainsawr  or someone else that knows.

http://store.chainsawr.com/products/husqvarna-42-133-234-238-242-chainsaw-herr-325-7t-spur-sprocket-drum-new-pn-n268-l7





I wasnt looking for used but thanks for looking though.

Last one was new.....................

You need to figure out which one you have by serial number to know what clutch etc you need it seems.  You can do all this searching on your own too.

http://www.partstree.com/parts/?lc=husqvarna&mn=42+%281988-10%29&dn=083560008


Husqvarna 42 (1988-10) retail new
501636003   CLUTCH ASS'Y   $39.04
503444901   29105 DRUM   $18.90
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 06:53:08 pm
husqvarna 42 special chainsaw clutch sprocket assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-sprocket-assembly

http://store.chainsawr.com/products/husqvarna-42-special-chainsaw-clutch-mechanism-washer



Husqvarna 42, 133, 234, 238, 242 (before serial # 3441001) ask Scott username chainsawr  or someone else that knows.

http://store.chainsawr.com/products/husqvarna-42-133-234-238-242-chainsaw-herr-325-7t-spur-sprocket-drum-new-pn-n268-l7





I wasnt looking for used but thanks for looking though.

Last one was new.....................

You need to figure out which one you have by serial number to know what clutch etc you need it seems.  You can do all this searching on your own too.

http://www.partstree.com/parts/?lc=husqvarna&mn=42+%281988-10%29&dn=083560008


Husqvarna 42 (1988-10) retail new
501636003   CLUTCH ASS'Y   $39.04
503444901   29105 DRUM   $18.90

Sorry didnt see that. Thanks

Mine doesnt have a serial number. Least I cant find it anyways.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on December 21, 2012, 06:55:01 pm
I've bought from Chainsawr several times and the parts were always as advertised..
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 21, 2012, 07:01:46 pm
I've bought from Chainsawr several times and the parts were always as advertised..

Ok thanks for the review.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on December 23, 2012, 07:54:40 am
Is anything i need to watch for when using a service manual for 42/42d?
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on December 23, 2012, 10:50:02 am
William gave some info on 42 watches in this thread.   http://chainsawrepair.createaforum.com/husqvarna/husqvarna-running-problems/
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on December 24, 2012, 11:45:30 am
I ran across this post on another forum;

Quote from: wyk;3265661
  ....

Anywho, these 42 specials scream when ya port em. Turns out the transfers were open, so I couldn't mess with them much without an angled power tool. So I just opened it up as you normally would, port-matched the exhaust, gave it a tad more intake timing, raised the exhaust back to stock after dropping the gasket for a squish of around .020. According to the part number in europe for the Galordoni cylinder, it was for a 242 special. The piston is a flat top VS the standard 42's dished piston. Compression is way up there for a lil saw. It was good to start. I'll have a vid of it with the tune I received it in(anemic at best). Me tuning it, and then after it was ported. This little thing reminds me of all those wild thing videos I've seen now. It cost 50, so not much loss if she explodes, really. But hopefully she'll keep it together. Since the spec on the 42 is 14.5k RPM, the 42 special at 15K, and the 242xp at 15.5K, how much should a ported 42 special turn? She has a ton of torque in wood for her size, but she is screaming on the top end out of the wood so much It scares me. If I richen her up much more, she starts acting liek well..like she's running too rich.

Interesting! ;)
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on January 14, 2013, 12:42:09 pm
Came cross a new issue on this saw. Would worn spur sprocket effect the saw idling shortly after releasing the trigger? I ran this saw and after releasing the trigger the saw got all bouncy like its out of time then corrected itself. I know it needs a new sprocket and maybe bar too. Just wondering if its all related to the chain sprocket or is there something going on that needs to be looked into.
Title: Re: Husqvarna 42 - 42 special ?
Post by: 660magnum on January 14, 2013, 12:50:31 pm
It might be slightly lean on the low speed
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on January 14, 2013, 12:53:01 pm
Which way do I turn it? 1/16 turn?
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on January 14, 2013, 01:02:53 pm
Good read on carb tuning http://www.madsens1.com/saw_carb_tune.htm
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on July 17, 2013, 03:22:02 pm
Im lost on this saw now. Im trying to replace the spur sprocket which is .325 7 tooth. The parts diagram on parts tree and jacks small engine is different that setup. I have to remove the clutch to replace the sprocket. I got this part number 503444901 from a 42 model but it that a rim sprocket or spur sprocket?
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 03:43:19 pm
503444901 shows spur in the IPL I am looking at.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 03:56:56 pm
501636602 shows rim style
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on July 17, 2013, 04:07:28 pm
Heres the numbers that are stamped on the outside of old clutch drum where chain goes. Top is 5031193 325x7 bottom is sweden 931216
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on July 17, 2013, 04:20:52 pm
Heres the numbers that are stamped on the outside of old clutch drum where chain goes. Top is 5031193 325x7 bottom is sweden 931216

That dont tell me anything. Sorry.   

Does it have a SPUR or RIM set up on it now?  Pics?

Put the numbers I showed in for 42 242.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on July 17, 2013, 04:26:37 pm
It has the spur setup. The clutch side of the crankshaft has threads on the end of it. So the clutch goes on last.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on July 17, 2013, 04:29:30 pm
???   Yep thats what they show. Clutch last. 
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on July 17, 2013, 04:33:18 pm
503444901 shows spur in the IPL I am looking at.

That part number has been discontinued and to use 640200097 which is a 29105 oregon rim sprocket setup per jackssmallengine.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 04:38:04 pm
503444901 shows spur in the IPL I am looking at.

That part number has been discontinued and to use 640200097 which is a 29105 oregon rim sprocket setup per jackssmallengine.

The 01 number was SPUR.  Did you try the 02 number for oem RIM set up?  Not that it matters since you found the oregon.  Good to know the oregon rim set up too.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 04:39:31 pm
501636602  I just fake placed order. It shows NLA  too.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 04:42:52 pm
More info for SPUR

 husqvarna 42, 133, 234, 238, 242 chainsaw herr .325-7t spur sprocket drum new pn n268-l7
husqvarna 42, 133, 234, 238, 242 chainsaw herr .325-7t spur sprocket drum new pn n268-l7

 
Part: .325" pitch x 7T spur sprocket drum for the clutch
Herr Part # N268 L7 replaces pn 503 44 49-01
Condition: new
Fits: some models of Husqvarna 42, 133, 234, 238, 242 (before serial # 3441001)

Ready to ship (4 in stock)
$13.50 USD
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun . on July 17, 2013, 04:46:37 pm
 RIM

Husqvarna 242 Chainsaw Clutch Rim Drum
Husqvarna 242 Chainsaw Clutch Rim Drum

Part Name: clutch rim drum

Condition: good used/working shape

Fits: Husqvarna 242 chainsaws

Ready to ship (1 in stock)
$15.00 USD

Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on July 17, 2013, 04:57:49 pm
Thanks. Ordering the Oregon 29105 comes with clutch rim drum and rim sprocket. Wish it was available with silver streak.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 27, 2013, 06:14:19 pm
Came across new problem. New rim sprocket kit and clutch spring. Chain still moves on idle. Took it to a Husqvarna dealer to adjust carb. They adjusted below spec to try to get the chain stop moving on idle. Any ideas?
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 09:40:45 am
Came across new problem. New rim sprocket kit and clutch spring. Chain still moves on idle. Took it to a Husqvarna dealer to adjust carb. They adjusted below spec to try to get the chain stop moving on idle. Any ideas?

How about the clutch bearing, did you change it?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 10:17:00 am
New clutch bearing came with the sprocket kit and was greased with the Stihl sprocket bearing grease.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 10:52:19 am
Are you sure you got the right kit, according to the serial number of the saw?

I'm not sure there were different ones, it just is a possibility....
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 01:07:00 pm
I got the rim sprocket kit listed earlier in this post. The sprockets are NLA by husqvarna.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 01:51:06 pm
The IPLs show 3 different part numbers for the kits - but it is only the last digit that is different, and I don't know what the difference is.

What is the serial number of your saw?


501636602 shows rim style

...and -03 and -05, at different times...
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 02:30:24 pm
Serial is 4030431 or 4050431. Third digit is either 3 or 5. If you back and read page 3 of this post the 02 part number is NLA.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 04:32:40 pm
Serial is 4030431 or 4050431. Third digit is either 3 or 5. If you back and read page 3 of this post the 02 part number is NLA.

OK, 1994 week 3 or 5 both fits with the -02 part number. I have no idea which version the Oregon part number corresponds to, or what is different.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 06:18:12 pm
According to Jacks Small Engine all the sprockets sub to the Oregon rim sprocket kit that I got.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 08:19:09 pm
According to Jacks Small Engine all the sprockets sub to the Oregon rim sprocket kit that I got.

For all I know, that could be correct - I simply don't know.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 08:42:55 pm
I dont know either. What else could it be then?
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 09:13:53 pm
I assume you have tried using the idle adjustment (T or LA)?
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 28, 2013, 09:36:06 pm
Idle is set too low already where  it wont stay running on a cold start. Shop set it at 1600 when its supposed be at 1800 for idle speed.
Title: Re: Husqvarna 42 - 42 special ?
Post by: SawTroll on September 28, 2013, 10:44:07 pm
Idle is set too low already where  it wont stay running on a cold start. Shop set it at 1600 when its supposed be at 1800 for idle speed.

It's supposed to be 2700 - the L side likely is set way too rich on your saw!
Title: Re: Husqvarna 42 - 42 special ?
Post by: Magnus on September 29, 2013, 08:17:50 am
There is more than one way to set the idle. How you set it is not that important, naither is RPM. But how she performs is very important.
A low, strong, steady idle with a clear tone in engine without any missfires or ratling metallic noises is a goal to have.
No hesitation, spinning or twitching chain.

Title: Re: Husqvarna 42 - 42 special ?
Post by: Magnus on September 29, 2013, 08:22:55 am
Idle is set too low already where  it wont stay running on a cold start. Shop set it at 1600 when its supposed be at 1800 for idle speed.

It's supposed to be 2700 - the L side likely is set way too rich on your saw!

2700rpm is too fast for most of these with the the ones without conventional clutch spring. The ones with U shaped plate springs will get hot and loose shape if run on idle much (like when clearing, piling brush etc).
As low as possible with a steady run and good performance is alway's best!
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 29, 2013, 08:32:28 am
It's supposed to be 2700 - the L side likely is set way too rich on your saw!

What does the L side have to do with the idle?
Title: Re: Husqvarna 42 - 42 special ?
Post by: brokenbudget on September 29, 2013, 08:57:32 am
What does the L side have to do with the idle?



it has a lot to do with the idle. if the low is set too rich, you won't get it to idle low enough without it loading up and stalling. if it's too lean, you won't be able to open the throttle up enough to keep a steady speed and the idle will fall off as it runs out of enough liquid fuel. if you can't get it to idle low enough without it either dying or the chain moving, you might have an airleak playing games with you.
there's nothing here on these saws that is rocket science. if the crank isn't chewed up from a bad drum bearing, and there isn't any 'glaze' on the crank where the bearing contacts (you did use a scotchbrite pad on the crank where the bearing runs didn't you? and you oiled it right?) and the bearing is new, and there isn't any binding between the clutch and drum or crank. the chain should stay put if the idle is in the right area.
that being said: on these little saws, the idle has to be up pretty high for the chain to start moving. I've had them idle as high as 3400-3500 and the chain is just barely starting to twitch.

I have no idea why my post did this :)

fixed ;)
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 29, 2013, 09:16:05 am
So where would the air be at? crank seals? bad gasket/diaphram on the carb?
Title: Re: Husqvarna 42 - 42 special ?
Post by: Magnus on September 29, 2013, 09:45:39 am

it has a lot to do with the idle. if the low is set too rich, you won't get it to idle low enough without it loading up and stalling. if it's too lean, you won't be able to open the throttle up enough to keep a steady speed and the idle will fall off as it runs out of enough liquid fuel. if you can't get it to idle low enough without it either dying or the chain moving, you might have an airleak playing games with you.
there's nothing here on these saws that is rocket science. if the crank isn't chewed up from a bad drum bearing, and there isn't any 'glaze' on the crank where the bearing contacts (you did use a scotchbrite pad on the crank where the bearing runs didn't you? and you oiled it right?) and the bearing is new, and there isn't any binding between the clutch and drum or crank. the chain should stay put if the idle is in the right area.
that being said: on these little saws, the idle has to be up pretty high for the chain to start moving. I've had them idle as high as 3400-3500 and the chain is just barely starting to twitch.

I have no idea why my post did this :)

I had those that twich regardless as the springs had run hot and lost tension. With the ones with conventional spring and three shoes you generally have a lot higher rpm before it engages.
Title: Re: Husqvarna 42 - 42 special ?
Post by: brokenbudget on September 29, 2013, 10:28:16 am
I had those that twich regardless as the springs had run hot and lost tension. With the ones with conventional spring and three shoes you generally have a lot higher rpm before it engages.

that very well may be. and I didn't read anywhere here that he changed the clutch or the springs. might be the next step. however it should be pretty easy to have a look at the clutch with the cover off and the saw running. if the springs are the culprit, you'll see the shoes hitting the drum at idle.
Title: Re: Husqvarna 42 - 42 special ?
Post by: brokenbudget on September 29, 2013, 10:32:47 am
So where would the air be at? crank seals? bad gasket/diaphram on the carb?

that's one of the problems with the 42. they can leak everywhere. there's more places for a leak to happen on these than a chunk of swiss cheese has holes. you'd need to do a pressure/vac test to see. pull the bar and chain, leave the clutch cover off and start it up. get it to idle low enough and look to see if the clutch shoes are contacting the drum. if they're grabbing it, you might want to get a new set of springs or a new clutch.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Cut4fun on September 29, 2013, 10:40:10 am
BB I fixed that one post you said you had no idea why it did that. You cut off a ] on the end of his quoted post. Just added ] to end of his post and that way it didnt take on your post too. ;)
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 29, 2013, 10:57:34 am
So where would the air be at? crank seals? bad gasket/diaphram on the carb?

that's one of the problems with the 42. they can leak everywhere. there's more places for a leak to happen on these than a chunk of swiss cheese has holes. you'd need to do a pressure/vac test to see. pull the bar and chain, leave the clutch cover off and start it up. get it to idle low enough and look to see if the clutch shoes are contacting the drum. if they're grabbing it, you might want to get a new set of springs or a new clutch.

The clutch spring is new as I said in post #62. Its long spring not the little springs.
Title: Re: Husqvarna 42 - 42 special ?
Post by: davbell22602 on September 29, 2013, 11:17:30 am
Think this is resolved now. I dont know it happened but I found the bar nut was loose. So I tightened up the chain and bar nut. Started it up and the moving chain is no longer happening now. I guess I could've got distracted right when I was getting ready to tighten up the bar nut after replacing the clutch spring a month ago. Whats a good asking price for this saw?

Thanks
Title: Re: Husqvarna 42 - 42 special ?
Post by: brokenbudget on September 29, 2013, 11:55:24 am
BB I fixed that one post you said you had no idea why it did that. You cut off a ] on the end of his quoted post. Just added ] to end of his post and that way it didnt take on your post too. ;)

I figured it was my fault! I have fat fingers ;D

Think this is resolved now. I dont know it happened but I found the bar nut was loose. So I tightened up the chain and bar nut. Started it up and the moving chain is no longer happening now. I guess I could've got distracted right when I was getting ready to tighten up the bar nut after replacing the clutch spring a month ago. Whats a good asking price for this saw?

Thanks

yeah I didn't see that post :) but still, even with the chain loose it shouldn't be moving. hope this works for you.
Title: Re: Husqvarna 42 - 42 special ?
Post by: Tor R on December 20, 2015, 08:35:07 pm
Bumping old thread
42 vs 42 special
Husqvarna Norway claim it was just a gimmick and there was no difference in later 90's
Other claim there was several difference between 42 vs ,42

i would like to know whitch difference, what stamps the jug had, what piston 42 vs 42 special had. If any have pictures please post them.

i have 2 Husky 42, 90 97,
The 90 have gilardoni 7 jug
The 97 have gilardoni 241 jug
Title: Re: Husqvarna 42 - 42 special ?
Post by: Tor R on January 05, 2016, 08:50:43 pm
It seen that 133/444/44/234/238/242/246 are history
More and more parts are NLA.
Piston is NLA in US, same with the famous bearing, NLA.
We still have piston but bearing and gasket set are NLA
Wish I knew in whitch direction going.

Meteor piston look different, dunno if any have seen it, reminds me of normal 42,
Title: Re: Husqvarna 42 - 42 special ?
Post by: wild262 on January 06, 2016, 08:06:51 am
Bumping old thread
42 vs 42 special
Husqvarna Norway claim it was just a gimmick and there was no difference in later 90's
Other claim there was several difference between 42 vs ,42

i would like to know whitch difference, what stamps the jug had, what piston 42 vs 42 special had. If any have pictures please post them.

i have 2 Husky 42, 90 97,
The 90 have gilardoni 7 jug
The 97 have gilardoni 241 jug
Have had several 42's.  Just sold a real nice 93' model 42 Special on "bay" last week.  Had the Gilardoni cylinder.  I don't believe any changes were made to the cylinders during the run of the 42's but I could be wrong.  The Mahle cyl. was used on the 242 only as far as I know.