The engine got about 125,xxx miles on it. Its time for the timing belt change but the reason I didnt do it yet is because it has minor blow headgasket and I would like just to put a 95 EJ22 in it.
The grinding noise is more like when you drive in reverse in a manual 5 speed transmission. I couldnt really think of anything to describe this noise. But its for sure temp related.
I can let the engine idle and rev many times about an hour without the grinding noise. So far only way to produce the noise is to drive the car more than 30 mins. Maybe its transmission related????
I checked all the heatshields and found one thats a little loose, I bent it back a little to stop the rattle.
I also checked acc.belts/pulleys/alternator, they seems OK. The crank pulley didnt grind/loss on the center piece of timing belt cover.
Could the timing belt pulleys making noise only when warm up?
What about the oil pump and flex plate of the transmission? The trans shift ok and the ATF has been drain and fill last week.
Thanks again for all the suggestions
Edited by pearlm30, 31 March 2009 - 01:11 PM.