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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > I have a lifter that keeps getting stuck.



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      04-30-2013, 06:01 PM   #1
Leekay07
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I have a lifter that keeps getting stuck.

When the engine is warm one of my lifters is getting stuck. I paid for a new valve cover gasket not 3 months ago and is now money down the drain...

I noticed it when I put the cobb on the car. It shows its head but goes away > 900rpm.

It can sound like a spun bearing or warn crank shaft bearing but its actually on the top end.

Now I have to see how it can be repaired. Someone told me to try Mystery oil before planning to take apart the top end.

Last edited by Leekay07; 04-30-2013 at 06:14 PM.
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      05-01-2013, 08:49 PM   #2
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Today I drove 150 miles with no lifter slap. Odd.
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      05-01-2013, 09:03 PM   #3
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Quote:
Originally Posted by Leekay07 View Post
Today I drove 150 miles with no lifter slap. Odd.
How do you know a lifter is stuck and it is not something else? First I have read about a lifter issue on n54's.

There is a ticking noise that is quite common (and normal) on these cars - and I suppose it does sound a bit like a lifter tapping. Though it usually only ticks at idle.
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      05-01-2013, 09:06 PM   #4
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Quote:
Originally Posted by foghat View Post
How do you know a lifter is stuck and it is not something else? First I have read about a lifter issue on n54's.

There is a ticking noise that is quite common (and normal) on these cars - and I suppose it does sound a bit like a lifter tapping. Though it usually only ticks at idle.
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      05-02-2013, 10:58 AM   #5
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http://www.e90post.com/forums/showthread.php?t=667559

the back ground noise is what I am hearing.

Knock knock knock.
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      05-02-2013, 11:01 AM   #6
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Quote:
Originally Posted by Leekay07 View Post
http://www.e90post.com/forums/showthread.php?t=667559

the back ground noise is what I am hearing.

Knock knock knock.
Does it sound that loud and that deep of a knock? Like a diesel engine almost?

Or is it a faster, lighter ticking noise that goes away when you rev the engine?
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      05-02-2013, 01:39 PM   #7
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sounds like a loud knocking sound. goes away when you lightly rev it. Sounds gone now.
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      05-06-2013, 11:24 PM   #8
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Well the sounds been gone for over a week now.
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