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Old June 8th 06, 02:47 PM posted to alt.autos.bmw
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Default how to check how a lifter is bad? (Valve Noise)


wrote:
>
wrote:
>> I have a 1995 740iL E38 series BMW, i have noise on my right side of
>> the engine that sounds like a tick. The sound is in the lifter/ header
>> area. I took it into the dealer and they were unable to give me an
>> exact answer other than what i suggested. I have the TSI software to
>> repair my BMW and it suggests the lifters.
>>
>> I took the head apart and i have the lifters out too, but no one can
>> tell me how to tell how much play there is supose to be in the lifter,
>> even the BMW mechanics. The software tells how to test them while still
>> in the engine, and i pushed on each one like it says, but didn't really
>> get any play on all 16 on that side.
>>
>> When i pushed on the lifter (the underneath, and while out of the head)
>> and i can push that middle in all the way till it stops. When it stops
>> it feels like it is bottoming out.
>>
>> Can anyone give me an exact answer on how to check how a lifter is bad?

>
> No, but there was a TSB about ticking engines when they had not been
> run for awhile or not been run long enough to allow the oil to warm
> up. Soemthign to do with the lifters draining and not getting pumped
> up again.


It's almost impossible to test a lifter out of the car. But if you know
which one it is, just replace it and get on with your life. If it
contacts the cam lobe directly, make sure there isn't visible wear.

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