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Topic How about "Notlob?" |
Modes of Failure tonyd - 9 years ago |
Interesting first post.... Roger987 - 9 years ago |
Re: Interesting first post.... tonyd - 9 years ago |
Modes of success... jlegelis - 9 years ago |
Top down, October 2013 evening in New Hampshire Roger987 - 9 years ago |
Re: Modes of failure... tonyd - 9 years ago |
Lifter replacement is not an engine out job. The dealership doesn't bother cleaning them.. MarcW - 9 years ago |
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tonyd
To give an optimistic example of Fixes, the Lifter issue is interesting.
Apparently the lifters can be dismantled,clean the ball, check the spring, inspect for cracks ,refill with oil and refit. The problem is I think this is an 'engine-out' job . So even if you have no lifter noise ,cleaning and inspecting them should(?) be on the to-do list when you have the engine out and apart. It would be a pity to miss this and then get lifter noise after you've re-installed the engine.
I wish the Variocam units were as easy/inexpensive to service as a dirty lifter..
Re: Lifter replacement is not an engine out job. The dealership doesn't bother cleaning them.. tonyd - 9 years ago |
An inspection may not spot a weak spring or a bad ball check valve seat that is allowing... MarcW - 9 years ago |
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tonyd
Yes, but I have to remove the engine for other reasons anyway! And I have to emove the trans. And I hope not to repeat too often :-).
Thanks for confirming the importance of the issue. A careful cleaning and inspection will confirm is replacements are required.
If the concern is ticking noises, I previously linked to a piece that mentions several alternative and unrelated causes of the noise.That may be why some report lifter replacement was ineffective.
Many failures can be addressed by... grant - 9 years ago |
Re: Modes of Failure tonyd - 9 years ago |
OK, so i read. They argue that: grant - 9 years ago |
Re: Modes of Failure tonyd - 9 years ago |
There is a fault... JM-Stamford,CT - 9 years ago |
Re: There is a fault... tonyd - 9 years ago |
Re: There is a fault... tonyd - 9 years ago |
Re: There is a fault... SORRY JM-Stamford,CT - 9 years ago |
You might as well list every rotating, reciprocating component as a failure. Given a large... MarcW - 9 years ago |
Here's my list of the 14 Modes of Failure Pedro (Odessa, FL) - 9 years ago |
Re: Here's my list of the 14 Modes of Failure tonyd - 9 years ago |
Maybe ... Pedro (Odessa, FL) - 9 years ago |
Re: Maybe ... Guenter in Ontario - 9 years ago |
Now there's a list i agree with, nearly 100%. And... grant - 9 years ago |
Re: Modes of Failure tonyd - 9 years ago |
Why is Hartech your Porsche Bible? Pedro (Odessa, FL) - 9 years ago |
Re: Why is Hartech your Porsche Bible? tonyd - 9 years ago |
How about "Notlob?" Laz - 9 years ago |
Re: Why is Hartech your Porsche Bible? tonyd - 9 years ago |
Wow. 22/24 after one highway sweeper...????!!! grant - 9 years ago |
Hartech is the company that claims "thousands" of cars are at risk from a multitude of... MarcW - 9 years ago |
I am soooo bored of being scored *NM* grant - 9 years ago |
Have you owned up to being honed up? *NM* Laz - 9 years ago |