outdoorsman0490
ArboristSite Operative
Hey All,
I have a 2000 372xp I picked up a couple years ago and use from time to time, the only completely stock saw I have. On this rainy day I figured I would check the compression and see where it is. It is about 130psi. Well, I had planned on modding the muffler, deleting the base gasket and installing new rings. I have a set of 50mm by 1.5mm rings for this saw I bought a while back when I got the saw (I guess I must have checked the comp then too). These rings do not fit, they are too thick to fit in the grooves of the piston. I checked the original rings with my micrometer, they are about .147" and the new rings are about .158", the new ones don't fit.
Anyone have any ideas on this? Are these new rings abnormally thick, if I get a new set of cabers, will they fit?
And does will putting new rings on make a big/noticeable diff anyway?
Thanks for your help.
I have a 2000 372xp I picked up a couple years ago and use from time to time, the only completely stock saw I have. On this rainy day I figured I would check the compression and see where it is. It is about 130psi. Well, I had planned on modding the muffler, deleting the base gasket and installing new rings. I have a set of 50mm by 1.5mm rings for this saw I bought a while back when I got the saw (I guess I must have checked the comp then too). These rings do not fit, they are too thick to fit in the grooves of the piston. I checked the original rings with my micrometer, they are about .147" and the new rings are about .158", the new ones don't fit.
Anyone have any ideas on this? Are these new rings abnormally thick, if I get a new set of cabers, will they fit?
And does will putting new rings on make a big/noticeable diff anyway?
Thanks for your help.