AP1 valve stem seal spring missing after retainer change
#11
Well, in my defense, the risk to the motor of dropping a valve is much higher than the risk to the motor of letting some oil by the seal, or so I now believe.
And that is the point of the post. I just wanted to ask what level of risk is entailed in not having the spring on the seal.
I felt motivated to do all the work to address a potentially catastrophic issue, but I do not feel motivated to redo all the work to address a seemingly minor issue.
But I take it from some of the comments, at least a few people do feel the stem seal spring is a sufficiently worthy cause to take it apart again? I don't think I agree at this point, but I did want to get some other opinions, so I do thank you.
And that is the point of the post. I just wanted to ask what level of risk is entailed in not having the spring on the seal.
I felt motivated to do all the work to address a potentially catastrophic issue, but I do not feel motivated to redo all the work to address a seemingly minor issue.
But I take it from some of the comments, at least a few people do feel the stem seal spring is a sufficiently worthy cause to take it apart again? I don't think I agree at this point, but I did want to get some other opinions, so I do thank you.
#12
Just keep a close eye on the oil level.
Good luck!
Good luck!
#13
Originally Posted by spokane2k
Well, in my defense, the risk to the motor of dropping a valve is much higher than the risk to the motor of letting some oil by the seal, or so I now believe. And that is the point of the post. I just wanted to ask what level of risk is entailed in not having the spring on the seal. I felt motivated to do all the work to address a potentially catastrophic issue, but I do not feel motivated to redo all the work to address a seemingly minor issue. But I take it from some of the comments, at least a few people do feel the stem seal spring is a sufficiently worthy cause to take it apart again? I don't think I agree at this point, but I did want to get some other opinions, so I do thank you.
#14
The only similar experience like this I've had was with early 1600 and 2000cc BMW engines. They used natural rubber-blend valve seals. They used darn natural rubber-blend on everything. The rubber would get so hard with exposure to oil contaminates (or smog, in the case of window seals) --- that the seals would actually cut into and wear out the valve stems. The cars would blow a TON of blue exhaust after a long downhill, using the gears & engine compression to slow you down.
You take off the cam, rocker arm assembly, & springs... and the valve stem seal looked perfect. Like brand new. However, the valve stems all measured below factory tolerance. Replace the seals with synthetic ones and new valves --- no more valve guide blow-by problems.
For the OP, keep an eye on blowing out blue smoke from exhaust. And oil loss.
Good luck!
You take off the cam, rocker arm assembly, & springs... and the valve stem seal looked perfect. Like brand new. However, the valve stems all measured below factory tolerance. Replace the seals with synthetic ones and new valves --- no more valve guide blow-by problems.
For the OP, keep an eye on blowing out blue smoke from exhaust. And oil loss.
Good luck!
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