oil leaking from exhaust manifold
#1
oil leaking from exhaust manifold
Hey, is there any one who would know why my polaris sportsman 500
would be leaking oil from the exhaust manifilod on front of machine.
I just rebuit the motor and it started leaking a little while later, any help would be
greatfully be appreciated.
Thanks
would be leaking oil from the exhaust manifilod on front of machine.
I just rebuit the motor and it started leaking a little while later, any help would be
greatfully be appreciated.
Thanks
#2
#3
oil leaking from exhaust manifold
On any engine rebuild, ask yourself...did you hone the cylinder before installing new piston/rings? Are the ring gaps staggered instead of exactly one on top of another? Are the rings installed in the correct order and orientation? Are the cylinder/piston/rings all the proper size? These basic engine rebuilding problems can cause oil to make it into the exhaust.
#4
#5
Sitting 3 years could cause valve guide seals to harden and leak oil into the combustion chamber. Same thing on rings if cylinder has a corroded area on the cylinder walls from piston being in one spot all this time. May clear up after riding a while. If it doesn't you may have to take the top end down and check it out.New valve guide seals,valve lapping,honing cylinder and new rings may bring it back to shape.
#6
Has the same problem with my Magnum 425, just got it rebuilt, it's not a lot of oil, but enough to have me a little annoyed. All the rings are in the right orientation, cylinder honed, and NOT burning any oil, it almost looks like it's coming from the valve cover????? I'm gonna dig a little deeper after I wash and degrease it.
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