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Random question but what compression numbers are most people seeing on the medium sized Countervibes (3400s to 4000s)? I know they aren't super high compression but all of mine are reading out around 120-130ish
 
SalahHH83 said:
Random question but what compression numbers are most people seeing on the medium sized Countervibes (3400s to 4000s)? I know they aren't super high compression but all of mine are reading out around 120-130ish
Click to expand...

Saved on Chainsaw Repair site. Info from Roger.

My 3800 was hair under 140psi but read the norm on them is 130psi

4000 thread. http://chainsawrepair.createaforum.com/poulan/poulan-4000/

author=3000 FPS link=topic=973.msg53689#msg53689 date=1423074448]
The 3400 run around 125 to 135 psi.
The 3700 will run around 150 to 160 psi
The 4000 is the same as the 3700 they both have two thin rings and the only real difference is in
the bore size as far as compression goes.

I have seen the exception posted where someone got up to 175 psi on the 3700 and 4000 models.
Click to expand...
 
Two of my 3700's are 170 psi. The 4000 is about 150. 3800's 135, 3400's lowest 120, highest 130. All run well. For comparison, Homelite 58cc saws are 150 psi except Xl-76's which all are 170 or a bit more. 5200 is 150 and the 4200 is 180.
The very first collector saw I bought was a 3400. It has a large chunk out of the cylinder above the exhaust port that looks awful. Comp is still over 125 and it runs as one of the best 3400's I have.
Tough saws.
 
The lowest I have is a 3400 with 115psi I know it's low but hey it still runs I have two farm pro 375s there both at 145psi and a 4000 at 150psi all are Stone stock
 
Thanks for the replies guys. 170 sounds excellent, Tim! I have a set of new rings for one of the 3400s sitting on the work bench. When I have some free time I'm going to re ring the worst 3400 and post some before and after comp numbers. None of the p&cs look damages or scratched so hopefully the rings will bring it back a little.
 
Your gonna like those saws, I know I said it on here before, but IMO that series 3400-4000 poulans are some of the very best made out of any make. Reliable as a hammer. Basic hand tools will get them down to the nitty gritty. Tough as hell( I know I dropped a tree on a 375 pro) then fixed it put it back into service. Can't say enough good about em.
 
Boomer 87 said:
Your gonna like those saws, I know I said it on here before, but IMO that series 3400-4000 poulans are some of the very best made out of any make. Reliable as a hammer. Basic hand tools will get them down to the nitty gritty. Tough as hell( I know I dropped a tree on a 375 pro) then fixed it put it back into service. Can't say enough good about em.
Click to expand...

Couldn't agree more, Boomer. My dad bought a countervibe 4000 new in 1985 or so and used it heavily. He handed it down to me about 10 years ago and I have put it to a lot of use. When I was younger (and it was still his) I did a bunch of stupid stuff with it like running it in the dirt etc. I still use it to this day but it's now in need some some TLC. The idle screw has fallen out, the tensioner has gone bad Etc. it's running 120psi right now so id like to do the rings on it but they seem hard to find.

It kills me that parts aren't plentiful on these saws or I'd be running them almost exclusively. Just a little on the heavy side but I'm still
Young and strong hah
 
Yeah I don't understand why there's no parts availability on theses I know there older but still. Out if my 40+ collection of saws my two favorites are a 4200 and a farm pro 375. Both were given to me by my grandad. He bought some never plastic stihls for the light weight the poulans sat for a long time until I got old enough to show interest. He brought them to me and said if I could make them run I could have em. Made em both run. showed him he said "not bad". I was hooked from then on.
 
I've gotta admit the lightness of a newer plasticy saw is nice when you are lugging it around all day. I found a Stihl MS180 on Craigslist for $25 bc it wouldn't fire. I put a new carb on it and use it all the time for limbing. It's super light and that's definitely easier on the body. I hate that non adjustable carb though. But that's another project... Maybe it's just nostalgia but the 4000 was the first chainsaw I ever used and learned on. It was my dads and that tone is stuck in my mind from my childhood. I'm sure that plays into it but these saws are so damn tough. I love my MS362 but anytime I have a big oak to cut, I find myself reaching for that 30 year old 4000

I'm in the market for a larger countervibe - a 5200 or 5400 - if I can find one for the right price. The price availability concerns me though.
 
I agree on the handiness of the new plastic jobs, I have a few myself for alot of my wood cutting chores. But there's something about holding a serious piece of machinery,built when the guy makin them was proud to be doing so. Real tools for real men, gets my blood pumping Haha. But I'm an old soul type guy
 
Some of the more prominent members here say there one of the strongest saws in there class In Stock form.
 

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