P38A 2.5 bmw turbo???

[johnnysensi]

Had my head gasket done...now afterwards ..when u rev over 3k rpm it makes a whiney whistle noise ..I'll post a video when I've read how to

 

[Saint.V8]

Turbo whistling??

Check all induction hoses for correct fitment and no splits etc.

 

[johnnysensi]

No splits ...no holes..all tight connections

 

[johnnysensi]

 

[wammers]

Sounds like very knackered alternator bearings to me.

 

[LUKBENPHI]

when it running carefully put a long screw driver on the bolt for each tensioner and all the ancillaries (air con, alternator pas pump) then put your ear to it you'll soon find if a bearings gone even at idle it will be apparent

 

[johnnysensi]

Thought I might try starting it with belt off and see if noise disappeared
..then just renew the culprit. ..I've already done pre tensioner. ..might as well change everything I can as I'm sure everything is dying ..all parts look original ..when the head was done ..was original gasket from new..cheers...I can't see no viable turbo leaks..

 

[johnnysensi]

Not the pulleys ..all checked.....when driven...in makes the noise from 2k rpm onwards ...does sound turboey or exhausty

 

[Grrrrrr]

Turbo kicks in around 1750 rpm on mine.

 

[johnnysensi]

Seem to stopped noise...renewed rocker cover gasket...while there ..i noticed internal shield in the rocker head was bent due to a so called mechanic trying to take it out
...straighten it out ..refit gasket properly and no noise ...

 

[wammers]

Seem to stopped noise...renewed rocker cover gasket...while there ..i noticed internal shield in the rocker head was bent due to a so called mechanic trying to take it out
...straighten it out ..refit gasket properly and no noise ...

Not always the obvious then. Oil seperator plate in cam cover should be held in by nine or so screws. But maybe not on non EGR unit.