Short of a Teardown...how can I ID this saw model?

RED-85-Z51 · Aug 12, 2007

Got bored, so i went out and cleaned up my Wizard B0-13, and "Made do" with the wallered Idle Circuit screw.

I got it running pretty quickly, sitting about a year.

I finally pulled the muffler and had a look see, looked great, bore looked pristine, rings looked good, and the piston was mint, except for a little scoring above the top ring at the very top edge of the piston. Nothing bad, its not even noticeable unless you get your face in there and squint real tight...

Well it ran, ran fine, I put a dab of red lictite on the low side screw when I got it tuned in, should hold for a while.

Im curious if this is a Poulan 3400, 3700, or 4000 model saw. I know it's one of the 3, Short of pulling it down and measuring the piston, is there a way to seperate the 3 models by a certain feature or something?

Thanks.

Justsaws · Aug 13, 2007

Measure the cylinder diameter through the exhaust port. One of the models came with thin rings, I do not remember which.

RED-85-Z51 · Aug 13, 2007

Justsaws said:
Measure the cylinder diameter through the exhaust port. One of the models came with thin rings, I do not remember which.

After seeing them, I cant imagine thicker rings, so Id say it was a thick ringed model...

ray benson · Aug 13, 2007

Measuring piston diameter through exhaust port should be pretty easy. Or get the number off the flywheel to cross reference with the 3400, 3700, 4000.

RED-85-Z51 · Aug 13, 2007

okay, just realized that Mike Acres site doesnt list the boreXstroke of these saws...darn it!

If you look at the 3 saw pictures, they look Identical. The only difference is 56cc's on the 3400 to lik 61cc's on the 4000, otherwise they apear the same.

Id just like to know what to put in my signature as to what it is...

Justsaws · Aug 16, 2007

Red, here is what I have on that series of Poulans. I just went out and measured a couple of pistons. The model numbers and ccs are out of the Chain Saw service manual 10th edition.

375=61cc(3.7ci)
385,395=64cc(3.9ci)
3400=56cc(3.4ci) 45mm bore /chromed piston
3700=61cc(3.7ci) 47mm bore
3800=61cc(3.7ci) 47mm bore thin rings, I think.
4000=64cc(3.9ci)

3400 has a chrome piston instead of a chomed bore. The 3800 has a chomed bore.

Hope this helps. Good luck.

RED-85-Z51 · Aug 16, 2007

Justsaws said:
Red, here is what I have on that series of Poulans. I just went out and measured a couple of pistons. The model numbers and ccs are out of the Chain Saw service manual 10th edition.

375=61cc(3.7ci)
385,395=64cc(3.9ci)
3400=56cc(3.4ci) 45mm bore /chromed piston
3700=61cc(3.7ci) 47mm bore
3800=61cc(3.7ci) 47mm bore thin rings, I think.
4000=64cc(3.9ci)

3400 has a chrome piston instead of a chomed bore. The 3800 has a chomed bore.

Hope this helps. Good luck.

Wow, I appreciate it!

This one has a Chromed cylinder, so I can eliminate the 3400.

So it could be a 3700, 3800, or 4000.

It has thick rings, I cant imagine them using rings any thicker than this, so Ill go ahead and eliminate the 3800.

That leaves the 3700 and 4000.

Ill use a popsicle stick to measure the bore....

Justsaws · Aug 16, 2007

Red, if I can find it, I will measure the 4000. Something that I should mention is that all of the measurements were slightly over the stated diameter. I rounded 47.4 to 47 as the measurement device(crappy caliper, good caliper at work) that I used is slightly out of whack(technical term for I dropped it). Good luck, fix your new Poulan, it will be a good saw.

retired redneck · Apr 27, 2008

I have 4 crapsman versions of the 3700 two of them i did mufflar mods on and carb mods.instaled new stile rim sprockets new 20 in bars and chains, for 61cc saws they will cut with the best of them, but weigh a ton..........

mattinky · Apr 27, 2008

I'm pretty sure I've seen 3400s with chromed cylinders

Justsaws · Apr 27, 2008

mattinky said:
I'm pretty sure I've seen 3400s with chromed cylinders

Very possible. I was passing on the information I had. Book says chromed piston not cylinder, top handled saws as well. I have not seen any 3400s with a chromed bore but I do not work on lots of 3400s, maybe 5 in the last year. Almost always dusted from crappy worn out filter. One friend really really likes them so we do what we can.

rmh3481 · Dec 11, 2008

I cant see the cylinder lasting even a day as untreated aluminum. The early models that arent chrome must be iron sleeved? Please take a look in your book and let us know.

Thanks,
Bob

Modifiedmark · Dec 11, 2008

mattinky said:
I'm pretty sure I've seen 3400s with chromed cylinders

I never seen one without.

FATGUY · Dec 11, 2008

RED-85-Z51 said:
Wow, I appreciate it!

This one has a Chromed cylinder, so I can eliminate the 3400.

So it could be a 3700, 3800, or 4000.

It has thick rings, I cant imagine them using rings any thicker than this, so Ill go ahead and eliminate the 3800.

That leaves the 3700 and 4000.

Ill use a popsicle stick to measure the bore....

The 4000 is a thin ring saw, I just went through all of this so I know how you feel . I have a saw that's labeled 3400 xp pro. Turns out the Canadian 3400 is actually a 4000. Go figure

The 4000 bore measures 1.9375" (or 49.2mm)

Short of a Teardown...how can I ID this saw model?

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