Have an m42 that I built for a turbo 2002. EVERYTHING inside the engine is new other than cams, lifters, crank, and rods. I recently started having an issue where when the engine is cold the timing chain slaps and the rail hits the inside of the timing chain case. Ran the car with the valve cover off and could see the rail moving. Once the oil pressure comes up the sound goes away after about 15 seconds.
I replaced the timing chain tensioner with a different one...came from other car with zero noise. I had actually swapped the tensioner that was in this car to the other car and no noise there either but...
I had squeezed all the oil out of the tensioner multiple times and thought the sound was gone but...nope.
I have built a couple of these engines and swap A LOT of them into 2002s.
I am somewhat at a loss as to what is going on now....
I am now wondering if there is something wrong with the oil control valve in the oil filter housing or a check valve somewhere.
If anyone has any ideas PLEASE post. I am trying to get this car done for Vintage in NC which is quickly approaching.
I replaced the timing chain tensioner with a different one...came from other car with zero noise. I had actually swapped the tensioner that was in this car to the other car and no noise there either but...
I had squeezed all the oil out of the tensioner multiple times and thought the sound was gone but...nope.
I have built a couple of these engines and swap A LOT of them into 2002s.
I am somewhat at a loss as to what is going on now....
I am now wondering if there is something wrong with the oil control valve in the oil filter housing or a check valve somewhere.
If anyone has any ideas PLEASE post. I am trying to get this car done for Vintage in NC which is quickly approaching.
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