Magnum it is a 3400.
Poulan 3400 counter vibe
- Thread starter Magnumfloyd
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Magnum it is a 3400.
Kind of worked like this for me. The 026 was the second saw I bought. I did a little to it like a carb kit, plug, bar and chain. Cut pretty well. Did a little research on here and decided to try a muff mod (muffler, don't get excited). It made a huge difference. A few saws later I picked up a 3400. I did a bunch of stuff to that and it would not keep up to my 026. Did a muff mod on that and now I think they are very close to each other. I have never timed them but they feel really close.
If your 026 muffler looks like this on the inside of the front cover (there are three different 026 mufflers), then drill a 5/16" hole above and below the 3/8" (I think) hole in the center. Don't forget to richen up the high side on the carb. I think that some later 026's have carbs with a fixed high side so you can't adjust the high speed mixture. If your is like that, don't do this mod!
Magnumfloyd
ArboristSite Operative
Yeah with a few saws and triplets and another kid at home I get confused sometimes
redunshee
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Don't forget you're talking about a 3400 with 56 ccs and an 026 with what 48-49cc's ?
Your talking also about a 3400 that is 15 years older than a 026.
WOW! and you have time to fiddle around with saws? My hat's off to you.
Yep. They are still have as good or better performance than many of the good saws today. The big ones are mind boggling for anyone lucky enough to get a chance to run one.
Magnumfloyd
ArboristSite Operative
If I replace the crank seals the only thing left would be the carburetor adapter gasket at the cylinder head right?
Did you inspect the plastic intake with a magnifier. They can develope some small hair line cracks.
Magnumfloyd
ArboristSite Operative
Okay I'll check that cause I check the crank seals and they were good but I figured I didn't have much left
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redunshee
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We need to step back here a bit. Did you do a pressure/vacuum test to check for any air leaks or seal leaks? How did you check the seals? They may seem fine under pressure but may leak under vacuum. A pressure test will find any leaks be they cylinder, carb intake manifold or case. It will also show real bad seals but not always marginal ones. That's what the vacuum test is for.
Magnumfloyd
ArboristSite Operative
Well I wish I had the means to do a pressure test I did retune the L and got the saw to idle down faster by leaning it out which it needed cause when I tilted forward the rpms would raise from fuel puddling what symptoms would I get if I punctured the check valve not sure that I did just a thought
cobey
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FYI.... to any that want a countervibe, tulsa ok craigslist has one listed simply as "chainsaw in wooden box" for $150:msp_biggrin:
cobey
Addicted to ArboristSite
3400 sorry didnt add that
Guido Salvage
Supreme Saw Whoreder
cobey
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if my funds were not low I would go get it:msp_sad:
Magnumfloyd
ArboristSite Operative
Is replacing the check valve a pain
redunshee
Addicted to ArboristSite
Check valve ??
Magnumfloyd
ArboristSite Operative
Yes check valve the piece behind the screen under the brass collar I bought this to fix I think I may have pricked it with a pick http://bit.ly/WfGA95
You can download a Walbro manual here. It explains how to test the check valve and replace it if required.
They are apparently often damaged when high pressure air is used to blow out passages.
walbro ServiceManual.pdf
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