super55
Platinum Member
- Joined
- Jan 27, 2012
- Messages
- 920
- Location
- Great North of Michigan
- Tractor
- Oliver Super55, John Deere 4310, John Deere 4400, Kubota L2500 (had),
My 2001 JD 4310 is starting to get pretty smokey on startup. I am 99% sure it's the valve stem seals because it's a blue smoke. It clears up after about 30 seconds when the engine starts to smooth out. I never have to add oil between the 100 hr changes so I know it's not leaking terribly. It just looks like a rebuilt engine burning off assembly lube every time at startup after a day or two of sitting. The Yanmar engine runs great with no power issues once warmed up. On really cold days you can hear a cylinder sporadically missing for about 20 seconds which I assume is the one that probably has the leaky stem seal.
My question is can a leaky valve stem seal create bigger problems if not addressed other then perhaps some carbon buildup on the valve seats?
My question is can a leaky valve stem seal create bigger problems if not addressed other then perhaps some carbon buildup on the valve seats?