Spun bearing? Thuding only when warm
Thread Starter
Senior Member
iTrader: (10)
Joined: Aug 2008
Posts: 638
Likes: 0
From: Winchester, VA
Car: 1991 Camaro RS/1989 Vert RS
Engine: 355/350
Transmission: T-5/T-5
Axle/Gears: BW9bolt3.45posi/3.23 Posi
Spun bearing? Thuding only when warm
Well when cold the car sounds perfect. No knock, no nothing. You can rev it, you can floor it nothing. Even in gear. How ever, when it starts getting warm, it starts knocking really bad. Only when it's at idle or a little above . When reved around 3000 RPM's it goes away. Any suggestions?
Senior Member
iTrader: (3)
Joined: Aug 2008
Posts: 614
Likes: 0
From: Memphis, TN
Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: Spun bearing? Thuding only when warm
I don't think it's a spun bearing, and from my experience if it were a rod, it would knock always, especially at higher rpm's. I am wondering if it might be piston slap you are hearing??? Just a guess on my part there, but it is possible. Do you have good oil pressure at all times and temps?
Thread
Thread Starter
Forum
Replies
Last Post
HoosierinWA
Tech / General Engine
5
Oct 7, 2015 10:15 AM
