Anyone here spun a main bearing?
Thread Starter
Launching!
Joined: Nov 2001
Posts: 286
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From: St. Louis
Anyone here spun a main bearing? I'm just curious what your car was doing to make you think something was wrong. Like did it make a certain noise or did you get a lot of vibration in the drivetrain? Twice now when I've floored it from a 10-20mph roll and ran it up to about 70 when I let off I can hear a squealing sound coming from the engine bay. Also the shifter starts vibrating really bad. It only does it for about 10-20 seconds and then goes back to normal. What's weird is it only does it if I spin the hell out of the tires. There's also a mild ticking sound coming from the motor under normal driving. Any ideas what the problem could be?
Re: Anyone here spun a main bearing? Been there.
Oil pressure fluctuated wildly at idle.
Pronounced vibration at 2500 rpms and higher.
Major loss in power too.
Obvious knocking, not as deepsounding as a SBC, coming from the middle of the engine.
Major shavings in oil... Huge gray streaks...
Oil pressure fluctuated wildly at idle.
Pronounced vibration at 2500 rpms and higher.
Major loss in power too.
Obvious knocking, not as deepsounding as a SBC, coming from the middle of the engine.
Major shavings in oil... Huge gray streaks...
Re: Anyone here spun a main bearing? Been there. Doesn't "sound" like a main to me. If you torch or wrap a main, you will see a marked decrease in oil pressure and sometimes get a deep knock inside the motor. Sounds like a loose belt or bad belt tensioner could be the squealing (sudden change in rpm causing belt to slip). Not too sure about the vibration though.
