Chainsaw Repair
Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Cut4fun . on March 20, 2013, 03:43:24 pm
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I've started off with a lot less (just 2 bare case halves before).
Husky 3120 1989 300th anniversary edition.
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Nice find Kevin, 1st year 1989 model .......should be worth a few bucks as a collector saw with a little tender love and care.
My buddy Franz just scored a 3120 with only 8 hrs on it complete with a bench Log O Sol mill all for a $1000. Lucky guy, Franz is a retired logger with a good sized woodlot acerage, he'll be busy for a while.
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I had one thing in mind for it when I seen it and it wont end up as restore. ;) It's going straight to a builder for a stroked crank etc.
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I had one thing in mind for it when I seen it and it wont end up as restore. ;) It's going straight to a builder for a stroked crank etc.
I kinda figured you were going to do that 8)
That's a project I can't wait to get into too,.............I almost got my saw workshop done, the electrician is just finishing hooking up the 100 amp service panel today and I should have my workbench in tomorrow.
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Not for me. I'm just to slow of a operator.
These new 66mm bore with 4mm to 6mm stroked cranks are just way to fast, IF you use the right builder. ;) Heck I couldnt handle the one I had. But willing to help those in the search for speed. ;)
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As i said keep me in mind for one
McBob.
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Oh I wouldn't say you were slow on the uptake ,you could always out gun me .
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Nice find Kev
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These new 66mm bore with 4mm to 6mm stroked cranks are just way to fast, IF you use the right builder. ;) Heck I couldnt handle the one I had. But willing to help those in the search for speed. ;)
What if i told you today that i found a crankcase and crank that gives 44mm stroke and with a bit of machining will accept the 090 cylinder and give you 148cc .... physical size of the cylinders is very close to each other
Whoo hoo and i was gonna buy a 3120 with an already weak bottom end no need to now ..... now to try and hide it all inside a standard saw ............ what this space ............ McBob.
P.S. And the donner saw well you can go and work it out for yourselfs
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stock stroke 44mm. Bet you meant 43mm for the saw (090's been going on them too) :D. stock 3120 stroke is 42mm. :D
I could tell you one with 48mm stroke oem hint hint and uses 090 tops and has already been done in the past. :P :P :D
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Well ruin my day ol cut4fun man i thought i'd found a winner, i build it anyway again just to peeve the fellas off and give em another one to whinge about
Actually 43.7 mm stroke and and it aint Orange in colour
McBob.
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A Dolly 166 ol mate
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These new 66mm bore with 4mm to 6mm stroked cranks are just way to fast, IF you use the right builder. ;) Heck I couldnt handle the one I had. But willing to help those in the search for speed. ;)
What if i told you today that i found a crankcase and crank that gives 44mm stroke and with a bit of machining will accept the 090 cylinder and give you 148cc .... physical size of the cylinders is very close to each other
Whoo hoo and i was gonna buy a 3120 with an already weak bottom end no need to now ..... now to try and hide it all inside a standard saw ............ what this space ............ McBob.
P.S. And the donner saw well you can go and work it out for yourselfs
Who are you trying to kid now,,,,,,
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I'm not interested or it would be gone allready. The only thing that bothers me is the honeing of the cyl.
http://www.ebay.com/itm/290907038188?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
Shep
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Well wouldn't you like to know ............. grasshopper
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Friends finished and tested one :o ;D
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Well Cut4fun have you had a look at the WB-2 off a Homie Super 650 for fit on a 3120 ?
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Cliff Helsel has the WG's figured out ;) so there was no need to.
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Well I used to think 66mm bore was big. I now know of 72mm bores and 48mm stroke racesaws. :o :D :D
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Got a 3120xp being dropped today off after a dealer has put new oem topend and new coil and new carb but he is still having troubles with it.
Got to love being on call on Sun. ;)
Husqvarna 3120 IPL http://www.m-jardin.fr/wp-content/documentation/husqvarna/tronconneuses-thermiques/3120xp.pdf
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503250002 crank bearing
503260205 seal
Brand new set of SKF (same as OEM) crankshaft bearings and aftermarket (Hyway) seals. Fits Husqvarna chainsaw models 181 281 288 394 395 2100 3120 including XP models, also fits equivalent Jonsered chainsaw models, and Husqvarna Partner cutoff saw models K950 K960 K970 K1250.
Replaces OEM bearing number 738 22 03 25, and seal number 503 26 02-05.
These top of the line SKF bearings are made in Argentina or Italy.
SKF crank crankshaft bearings and seals for Husqvarna 281 288 394 395 XP K1250
$35.95
In stock
HUSQVARNA CRANKSHAFT BEARINGS 503250002 - 738220325 - 2101 - 394 - 281 - 288 - 3120
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Looks like 9 ipl versions here
http://www.barrettsmallengine.com/husqvarna/3120chainsaw.html
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Dealer got him good. Told him pulling 130psi so put a new topend on it. Bet was just needing reringed.
Coil wire had been chaffed cut and told him needed new coil. So they put a coil in it. Dont these the plug wire screws out to replace.
New carb installed too.
Then to beat all they put the wrong coil and he couldnt pull it over to get started. He sent it to Rich Dougan to fix it. Said ran 3 months and back to original issue.
Here is the saw that just arrived.
https://youtu.be/ehEbGKM7tR8
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All done. Now to do the 5 chains.
Walbro K12-WG put carb rebuild kit with ethanol resistant diaphragm check valve side. Pull L sprayed carb cleaner through it to make sure no blockage.
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LOL now he said he is bringing me his new 372 the dealer cant tune right. wow. Guess I earned his trust.
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He got the old carb. But didnt say anything about the old cylinder piston and coil.
Also see the same thing dealers here tell them to buy a new saw. Then I fix the saw they wanted fixed for $75. Including labor.
This is the same dealer I learned early on to avoid. I wanted a set of 394 rings. I even had the part number of rings I wanted. He wanted to know what year of 394. Told him just use my part number. He insisted on year. I said alright it is not for a 394 it is for a dolmar 166. I smiled, he looked puzzled and I walked out and never went back.
Went to another local dealer on other side of me 50mins drive from his place and got my freaking 394 rings. ;)
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Did you guys catch rich dugans remark saying he put a high performance coil in it. I laughed. What a BS itter.
Going to pull the recoil for a looks see. Just wonder if he put a 272 coil in it like I had on my stock 3120 and calling a stock 272 coil a HP coil. :D Really going to laugh if just a oem coil.
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I'm betting it's a stock coil.
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I'm betting it's a stock coil.
272 coil is his so called HP coil.
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pics
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All done. Now to do the 5 chains.
Walbro K12-WG put carb rebuild kit with ethanol resistant diaphragm check valve side. Pull L sprayed carb cleaner through it to make sure no blockage.
You have a pic of the ethanol resistant diaphragm check valve side
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All done. Now to do the 5 chains.
Walbro K12-WG put carb rebuild kit with ethanol resistant diaphragm check valve side. Pull L sprayed carb cleaner through it to make sure no blockage.
You have a pic of the ethanol resistant diaphragm check valve side
Pic was saved in the other board with thread to show. But here it is.
OEM out of the wabro carb kit. Bottom tan one.
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$15 dollar tip on top of the billed payed. 8)
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The 3120 was heading out today with the 60" bar and chain set up. I told him to grab a pic but never got anything back. So not counting on it.
Saving cage info Mike showed me.
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Here is owner of 3120 with the 44" on it.
Here is the 3120 with 60" - guy that drives the skidder with saw. Said it ran great today. Which is good to hear.
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Happy customers equal more work later on.
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Happy customers equal more work later on.
Just hearing the stories has been more then worth it. Amazing on the trouble he has had with the 2 local dealers. Those stories are a riot to here.
He stated he has found a home.
Oh yesterday he ask do you have a 105dl chain. I'm like mine. He goes well I need one. I said mine is new and just touched up by hand. Just pay what it cost me to replace.
He grabbed the chain. He goes I like your chains = sharp. I get them from the local dealers and they are not sharp after sharpened.
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foam for cage 503141802
felt 503895301
cage 503141601
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@mdavlee or anyone else that has time on the oem husky foam filter for these? Thats what we went with over buying a new felt one to replace the ole felt one.
Good bad etc feedback on them?
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I never tried it. The one that had the setup was missing the element so I slapped a max flow over it
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Thought I had ask about ideas for the v stack on a 3120 about 4 weeks ago. Maybe I forgot here and only did in group.
(((((Fitting velocity stack on a 3120? Local and me been trying to come up with something for his saw, but just cant figure out a way since the way their air filter base is made.
So looking for ideas from the brain trust we have here.))))))
Here is where he is at with the 3120 v stack this weekend.
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Few more pics of him roughing all in.
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After some welding yesterday. Here is friends trial fitting. Not bad at all.
He said he going going to use the air filter top cover too.
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Looks good
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Looks good
Was the first try rough fitting. He has a better idea now after the first one shown. But real close to the same just different plate etc. Also will need a bracket for cable.
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Husqvarna 3120 in for tuning last night, had just been woods ported for a local.
44" 404 in dry ash log. Toward the middle of log near bottom almost had it buried. Video loading is at very beginning of log so only about 32+ then. H side carb, unlimited coil and has been woods ported too.
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IMO 404 could have used a touch up but wasnt doing it as it came in alittle after 7pm. So on with the H side tuning with unlimited coil we went.
Saw was turning 14K when it came here and I turned it down to 11.8K. I know the stock 3120 rods cant take much more rpm on a constant bases. Why the race 3120 used a 084 rod or other rod in them.
https://youtu.be/2stIA9ic-Xw
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Feedback has been great so far.
Told me last night the 3120 was used 5hrs on a bigger oak take down. Said 48" or 44" bar was used. Think he said 48" across. Didnt see if he knew DBH or not. Think he has pics because he was showing someone how to's.
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Husqvarna 3120 v stack is almost done.
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Welding part done yesterday. 3120 v-stack ready for test session.
Looking dang good IMO
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8)
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He even opened up a extra af cover for it. Ready to try now.
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Last night. In for the test session and check tune with v-stack added. yep she needed retuned. It had gained about 700 on I and 1500ish on H so H fattened back up to work and I dropped. L was still perfect.
Then tuning a new to him 2100.
Was digging the NOS orange labeled 32" 404 bar.
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Nick heard us asking. Using 3d printer to make 3120 velocity stack.
Version 1, version 2 in the works.
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Speaking of 3D printers there's a hardware store in my town that has a Dremel 3D printer in stock . Pretty fancy one as it's priced at about $1,100 USD. About the price of a larger pro grade saw.
But they make lower priced ones like this one for about $600.
Would sure come in handy for my bikesaw rebuild.
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They posted a video of the 3d printers they used in a thread way back. Try searching 3d printer in chainsaw repair group. They showed in detail and told about it.
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Its not the printers that are my main problem its getting parts scanned 40 bucks a scan in 3D I have some e start mac battery packs I want scanned and I have mates that can print them
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Pete, sounds pricey. Have they developed a resin that has metal in it like JB Weld to make parts close to metal alloy?
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Thread on 3d printing parts http://chainsawrepair.createaforum.com/tools/3d-printer-chainsaw-parts/msg76804/#msg76804
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version 2 was closer. Nick said version 3 VS for 3120 in the works now.
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dont know about the reinforced plastics the printing is cheap its the 3D scanning thats a killer
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version 3 in pic 3120. So Nick said unto version 4 velocity stack now.
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Just saving some pics of my old 3120 stock practice saw. Unlimited coil.
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Well I bought it this morning :o. Like seeing a old friend. 8)
I traded it off when I got out of racing late 2010
Has new oem topend with maybe 5 tanks or so through it I was told.
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Piston pic today. Wouldnt do this muffler mod for a work saw today. Back then mainly was my practice saw.
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I read this would help my wild thing cut better. ::) :P
Just made a short trip to pick up for a guy in my chainsaw repair group.
I had just rebuilt the carb about 6 months ago and then pulled off for a H side modded carb.
Carb just over a year old bought new oem.
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Checking the ole girl out.
OK I went to pull this thing over without decomp. I have got freaking old. Not even going to try a psi check. Felt unreal. 😮 No way I could do a hotsaw 3140 or 3160 today.
Has a few cosmetic flaws shown in pics.
Was told 100% still a super strong runner with unlimited coil.
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SOB! I forgot how loud this thing is. Started it up in the metal pole barn. :o :D
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Saw is SF aka SOLD.
I thought it was one of the early ones. 1992 44th week, 79th built that week
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Save this 1989 husqvarna 3120xp pics here.
Shame they cut the full wrap.
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Feed back on the 3120 and 2100 with v-stacks
2 locals I take care of. The local running vstack on his 3120 took his off. To many drawbacks he said.
2 guys were cutting in brush and briars. 2100 and 3120 vstacks on both.
The 3120 kept getting hung up on the brush and briars on the filter and the 2100 had its ripped off by it.
Then another day cutting in rain. Even though filters oiled they both got rain inside the carb areas. So back to oem air filter set ups.
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Never thought about those type of issues. But there you go.
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Issue - throttle gets stuck wont got to idle.
Reason = frayed strand in throttle cable.
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Here's a very entertaining video for anyone with a saw shop doing saw repair. I could watch the whole thing over and over again.
The living legend Bob "Walkersized" Walker at his home in Nanaimo, British Columbia Canada.
At about the 2:00 minute mark Bob gets into explaining about a 3120XP hotsaw he's wrenching on. At about the 8:30 minute mark he shows a 3120 full circle stroked crank he built.
https://youtu.be/nkVBvmRO0mc
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New cable installed.
Local came by with his Jason Egan ported work saw 3120 for me to tune after pulling the v-stack back off.
Ran great with it but no good when working around briars and brush. So back to foam oem set up. 2100 had the VS filter ripped off and 3120 kept getting hung up. So now 1 less thing to worry about.
Told him we going to turn it up someday and hit these pine cants I got here. Going to throw my 20" 3120 build off race chain I made on it and let him take it for a ride.
Pine can make a wild thing look fast with a decent chain IMHO. But what I have right now.
Testing in some dry ash with 20" 404.
Way it was.
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Tune I did for the 60" must have been good to go. Went fat to hopefully clear up in the long bucking cuts.
H side carb. Jason Egan woods ported.
He said the tree was 57" across, didnt measure dbh.
Then some logs set aside I guess.
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Pretty cool pics. That is a long bar.
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I was working for Husky when this saw came out,it was so problem plagued I couldn't even keep one running for a week. I finally got the unfortunate owners to buy an 084 which worked tirelessly and faultlessly.The 3120 had a bum primer,throttle cable mounts,carb,just a nightmare of trouble to any dealer and user.It wouldn't start,run,the mounts all destructed in a week,just a total barely running pig which was falling apppart,the mounts were quickly breaking appart and damaging the crankcase. As a dealer I could not brginto fix althese faults,whata nightmare,won't start,run.It had major faults as a sw.Just a big stummbly pig,carb cant run.Had so many factory fixes the wer horribly.It as so problem plauged yjst it wasn't usefull a a dug mule job.
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I know a couple guys have them and love it.
Can't believe if it was such a Pig as you say they would hve even released it for sale.
Good way to loose customers is to sell them a lemon then not stand behind it.
:D Al
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I've never owned a 3120 but have been around them since they came out in the late 1980's and always heard good about them.
Usually "junk saws" are run by "junk operators ".
I've seen 084-880's with burnt clutch/oil pump innards and melted plastics from their inboard clutches while milling.
But never saw a 3120 with its outboard clutch do that....
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Husqvarna 3120 cable instructions for throttle cable
oiler info and some tools etc pics
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Did you notice that the crank seal is installed into the oiler and when the oiler gets installed the seal then goes on over the crank.
My 2100cd is made the same way. In fact I was just working on the oiler.
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Husqvarna 3120xp IPL http://s30387.gridserver.com/partsDiagrams/Husqvarna%203120.pdf
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Tuning woods ported by Jason Egan of ID 3120 and a 394 today with new muffler modded mufflers. 3/8 8T and 16" bars for play.
Will post pics in a bit.
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3120 muffler mod and tuning for local.
Then play with a very short bar.
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Couple I made for use in CRG
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Mitch's video he posted on CRG
https://youtu.be/PW50DX_s8K4
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Going be fun selling this wood ported, unlimited coil, fully adjustable H side carb 3120. 😋. 42 cannon , 32, 24, too 404.
6 tanks on the new oem ported topend by Jason Egan.
Pending till after Fri evening.
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Interesting. First one?
Look at the black tag. Appears to be scribe like a prototype. Larry Horner
Maybe I am just reading into it wrong.
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It looks like Larry Horner was part of the development of that particular saw according to the brass tag on the cylinder cover.
It is a piped saw with who knows what other mods.
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Forgot to update here. The guy did drive down from MI for the Jason Egan ID woods ported 3120 and bars and chains. Everything sold.
Him with saw. Me with G888 with no bar.
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It looks like Larry Horner was part of the development of that particular saw according to the brass tag on the cylinder cover.
It is a piped saw with who knows what other mods.
info coming in = the saw is owned by a local who owns a saw shop. I’ve talked to Larry he’s a wealth of knowledge in the development of the power saws we have today. Being in the Pac Northwest both Stihl and Husky would send him prototype saws to send out and test. I don’t know anything about this specific saw but will ask him next time I go to his shop.
That saw is out of Horner’s saw shop in cottage Grove Oregon.
Closer pic of the black tag. No oem numbers just the scratched in ones.