SnakenBacon
ArboristSite Lurker
Tested it on my ms 271 and got 130 psi
Farmertec 066 problems.
- Thread starter SnakenBacon
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Thats low too it should be 150-160 .
SnakenBacon
ArboristSite Lurker
On my 271? But it's brand new, and doesn't have any issues running at all.
Or are you saying my tester is off?
Yes it seems to be, a new saw should have more .
You can do the math from there .
SnakenBacon
ArboristSite Lurker
Ok, so Ive got myself an air leak. Is there a way to diagnose where it's from?
A pressure test ,then soapy water from a spray bottle. I aint so sure that's the problem. First get a good compression tester or borrow one that's known to work correctly. I didnt read all posts here did you try another carb?
SnakenBacon
ArboristSite Lurker
I have an oem one in the mail now. That was my first thought. I will say: if the compression is low, it can't be by much. It's as hard to pull as it was when I got it.
Well it might be the carb.
SnakenBacon
ArboristSite Lurker
When it comes Friday, I'll get back to you then
SnakenBacon
ArboristSite Lurker
Ok, so I put some thread tape on my tester, got 140 psi on an old Craftsman saw, and 150 on my ms 271. Then 100 on my farmertec 066. So I guess it's "spray soap on all questionable spots" time. Is there a reason I shouldn't use dawn? I know it breaks down oils, that's why I ask
I use Dawn.
SnakenBacon
ArboristSite Lurker
Good deal. I'll get on that in the morning then. Thanks
RED-85-Z51
Addicted to ArboristSite
Tester is low...probably has a longer hose on it im guessing?
Sent from my SM-G996U using Tapatalk
Their customer service is absolute dogshit. I'm still trying to get parts for my knockoff 372 that died. Started the process in June. Runarounds and reassurance - but no parts.
Didn't get 1/3 of the ordered parts. Was pulling teeth to get a refund. Had to email about a dozen times.
Why did I try them? I have good saws up to 64cc. Colorado trees don't need more than very too often.
Having said all that - the 066 has been pretty good for about 100 trees now. The 372 died fast. Their warranty is this - maybe they will send some parts. Maybe they won't - so far.
China just may be the worst thing to ever happen to this country. It is also a totalitarian state with the capability to take us over with the incredible mismanagement stemming from Eviltown DC.
It wasn't incompetence though. We went from #1 in all the best things to #Last in many things by design - from the power elite. They love the Chinese system for various reasons.
Didn't get 1/3 of the ordered parts. Was pulling teeth to get a refund. Had to email about a dozen times.
Why did I try them? I have good saws up to 64cc. Colorado trees don't need more than very too often.
Having said all that - the 066 has been pretty good for about 100 trees now. The 372 died fast. Their warranty is this - maybe they will send some parts. Maybe they won't - so far.
China just may be the worst thing to ever happen to this country. It is also a totalitarian state with the capability to take us over with the incredible mismanagement stemming from Eviltown DC.
It wasn't incompetence though. We went from #1 in all the best things to #Last in many things by design - from the power elite. They love the Chinese system for various reasons.
Automender
ArboristSite Operative
The compression is low in my opinion. On my K970, I re[laced rings and I went from 100 psi to 150 psi. The ring end gap was excessive when compared to brand new rings. Did you install the piston in the correct direction with the arrow facing the exhaust if it had an arrow. Pic is the new ring on the top and old ring on bottom. New ring had a very small gap.
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Automender
ArboristSite Operative
Low compression is not cause by an air leak it is caused by something in the cylinder. An air leak will cause the mixture to run lean and should not really cause flooding. Did you put a new base gasket on when you replace the rings.
You need to pressurize and pull a vacuum on your case while you are using soap to find leaks.
You need to pressurize and pull a vacuum on your case while you are using soap to find leaks.
SnakenBacon
ArboristSite Lurker
Yes, I installed it with the arrow facing the right direction.
SnakenBacon
ArboristSite Lurker
I actually ordered it from a seller here in the U.S.
You may want to do a pressure test, buy a Mitivac 8500. Can you post pics of both sides of the old damaged piston?
