Author Topic: Poulan 4620  (Read 1424 times)

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Offline Cut4fun .

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Re: Poulan 4620
« Reply #30 on: April 28, 2015, 04:01:01 pm »
This 4620 couldnt have been used but a couple times and very light work if that.  Like new. 

The mix looked like white mold particles growing in it. Dumped 1st thing. 

Taking plug out to check cylinder was a chore. never seen one this tight. Has to have come from factory this way.  Try scrench and not even budging, tap scrench with hand nothing, tapped scrench with ball peen hammer nothing. Now I was getting worried of doing harm.  Pulled out the 17" or so 3/8 breaker bar and plug socket.  Took some doing but it finally broke loose.  Will say that plug is not going back in the saw.

Tuned carb to my mix and saw is ready to go. 
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Offline Cut4fun

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Re: Poulan 4620
« Reply #31 on: April 29, 2015, 01:08:36 pm »
Got story on saw. His dad had bought new used to drop some what he called bigger trees on their property.  Must be why the 20" .325 set up was missing.  Saw has set since and dad has passed  I am guessing. He talked about him in past tense.  Saw was like new looking.

Only thing I found wrong was he brought me wrong bar 3/8LP and chain pitch 3/8LP.   Good thing I had .325 stuff on hand.   Showed him what he needed to get.

When did the PP4620AVX switch from 295. Just trying to get idea when it might have been bought first year.


For folks learning.  COPY PASTE

How to Determine Size of Replacement Saw Chain

There are three basic measurements needed to determine the replacement chain. The first is the pitch, or the distance between drive lugs on the chain and it determines whether the chain will fit the sprocket. Most saws use 0.325", 3/8", or 0.404" pitch, with 1/4" less common. Most consumer saws use a type of 3/8" chain called "low profile". We call it Picco. A few older saws use 1/2" pitch chain. The second is the gauge, or the thickness of the drive lugs. 0.050" (1.3 mm) and 0.058" (1.6 mm) are most common, 0.043" (1.1 mm) and 0.063" (1.5mm) less common. Pitch and gauge together determine the size of chain. Length is determined by counting the number of drive links, also called drive lugs.

http://www.planopower.com/reference_materials/saw_chain_info.shtml

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Re: Poulan 4620
« Reply #32 on: April 29, 2015, 01:25:56 pm »
I do not have conclusive information but based on reviews and parts lists it looks like the 4620 started around 2006 and 2007.
PP 505, 475, 445.

Offline 660magnum

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Re: Poulan 4620
« Reply #33 on: April 29, 2015, 03:53:25 pm »
They had both Poulan and PP 46cc w/20" clamshell engines some 6 or 7 years before that? Don't remember the numbers. There was a series with bolt on carbs and a later one with boots.
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Re: Poulan 4620
« Reply #34 on: April 29, 2015, 06:16:02 pm »
They had both Poulan and PP 46cc w/20" clamshell engines some 6 or 7 years before that? Don't remember the numbers. There was a series with bolt on carbs and a later one with boots.

Right it was called the PP 295
PP 505, 475, 445.

Offline Eccentric

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Re: Poulan 4620
« Reply #35 on: April 29, 2015, 07:17:35 pm »
The green 46cc Poulan variants were the 2700, 2775 and 2900.  Maybe other models too.  There were also black, red, and green Craftsman variants.  Some of these saws had plated cylinders and bare pistons (like a PP295/4620) while others had a plated piston and bare bore.   Most variants seem to have had the plated cylinders, with some of the 2775, 2900, and Craftsman variants having the plated pistons.

Then there's the 49cc versions (Poulan 3050, PP310 and PP315).

Then there's the 36cc and 40cc versions (Poulan 2500, PP255, etc) and the Jonsered and Partner versions of those......................and then there's the 36-141 series Husqvarnas that use those same 36cc and 41cc engines in a completely different chassis...
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Chris-PA

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Re: Poulan 4620
« Reply #36 on: April 30, 2015, 10:51:07 am »
Actually on this series of saw (P600) they have all been plated cylinders.  It's the other series (mostly 42cc) like is used in the Wild Thing and PP260 that were only plated for Poulan Pro versions (maybe Partner in Euope too?). 

Offline aclarke

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Re: Poulan 4620
« Reply #37 on: April 30, 2015, 10:58:17 am »
Are the pistons plated on the saws with non plated bores?  Odd system...

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Re: Poulan 4620
« Reply #38 on: April 30, 2015, 11:34:16 am »
Are the pistons plated on the saws with non plated bores?  Odd system...

Yes they are.   Even some of the saws with bigger cc' like the Poulan 3300 and the 3400 had plated Pistons and plain bores.  I my self do not care for them but there are some people who do like them and run them.   I have a couple of Poulan 3800's that are plated piston and plain bore that I dropped the cylinders on.  They are around 61 cc and they seem to do ok, but I do not believe they run as strong as their counter part that has the plated cylinder and plain piston version.   They are the Poulan 3700 and are 60 cc.
PP 505, 475, 445.

Offline Cut4fun .

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Re: Poulan 4620
« Reply #39 on: April 30, 2015, 12:43:09 pm »
Adam my dad has a  plated piston 3300 54cc he bought new late 80's.  Heavy land use only (not daily like tree guys) but IMO over it's head cutting alot.
 The piston and cylinder from what I could see through exhaust and plug hole were great looking still.  Reason for not pulling it down that far while replacing intake boot and av's.
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