talon_42o
20+ Year Contributor
- 95
- 0
- May 24, 2006
-
Essex,
ON, Canada
Ok it sounds like its something on the engine... it happens only on decel from 2000rpm too 1000rpm. Sounds like a bearing metal on metal high pitched. The head is rebuilt from DSM Graveyard stage 1... I know I hope its not inside the head. I have arp head studs 3g lifters all new oem timing stuff. Oil pressure seems fine this is a 2g head on 6bolt block the head stud holes were bored out the arps seemed too have lots of clearance when I slid the bolts through so I don't think its a cam/oiling issue. if you rev the engine while idling its there but not as loud seems more apparent when coming too a stop downshifting.. car is untuned but seems too make good power and is solid compression is good no boost leaks I'm leaning on the crank pulley or power steering pump pully AC has been removed not sure if anyone has any thoughts or can chime in on how to diagnose this feel free 
