Quote:
Originally Posted by JohnnyAction
Hello Supersport, I have had a few engines with the swirling marble noise and most of them had the noise coming from the timing chain. One of the engines was a small block chevrolet that the owner had recently installed one of the cheap "China" made roller timing chain kits. Reading your post, you state the bottom end is original. I assume the timing chain is original? You may want to slowly turn the crank and observe the rotation of the rotor, or valve action to determine if there is excessive play in the chain. John
|
As far as we could tell only the water pump and timing chain were replaced when I got the car. We checked the chain when the oil pan was off.
Today a friend of mine and member on here came by to hear it from a cold start. I told him that sound would start at about 170 degrees and it did. But after about 10 more minutes the temp snuck up to about 190 degrees and the sound went away!
Does that make any sense? 165-185 range noise then goes away. I’ll try my luck tomorrow and see if it just quit doing it but I can’t be that lucky. I was tempted to drop some oil and replace with marvel.
If newer timing chain is making noise do I need to worry?