jmemmert
ArboristSite Member
That is the question:
I bought an ms 361 that has the piston scuffed up on the exhaust side, and a little on the intake side. I assume this is from a poor mixture, or running it hard before letting it warm up. Looking through the spark plug hole, there appears to be some scuffing on the cylinder wall. it dosn't look too bad, It may clean up.
Here is my problem, the saw runs decent, has good power and all. The PO told me it only had 135# of compression. I went ahead and ordered a new piston kit for it from Amicks.
I bought a cheapo harbor freight compression tester. I have checked the compression on the 361, and came up with 160 on 4 pulls, cold.
I thought, dang, my tester sucks Its way off, so I checked my 034 that has very few hours on it. I came up with 165# in 3 pulls cold.
Should I :
Rebuild the 361 with the new piston I've already paid for?
Just run it till it quits for good?
Or sell it on ebay to get my money out of it?
Thanks,
Jon
I bought an ms 361 that has the piston scuffed up on the exhaust side, and a little on the intake side. I assume this is from a poor mixture, or running it hard before letting it warm up. Looking through the spark plug hole, there appears to be some scuffing on the cylinder wall. it dosn't look too bad, It may clean up.
Here is my problem, the saw runs decent, has good power and all. The PO told me it only had 135# of compression. I went ahead and ordered a new piston kit for it from Amicks.
I bought a cheapo harbor freight compression tester. I have checked the compression on the 361, and came up with 160 on 4 pulls, cold.
I thought, dang, my tester sucks Its way off, so I checked my 034 that has very few hours on it. I came up with 165# in 3 pulls cold.
Should I :
Rebuild the 361 with the new piston I've already paid for?
Just run it till it quits for good?
Or sell it on ebay to get my money out of it?
Thanks,
Jon