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I bent my crank pully!

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Old Oct 28, 2007 | 08:15 PM
  #1  
souperman28's Avatar
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From: Fremont, California
Car: 89 IROC-Z
Engine: 350 TPI
Transmission: 700r4
I bent my crank pully!

Well im going to get alot of laughs out of this but it happend, and im trying to fix it. I was jacking up my camaro to do an oil change and the jack slipped off my crossmember and landing on my crank pully and bent it. I jacked it up with another jack and checked if the car was ok and it seemed fine. But the next day i drove the car, but after a while it started to build a tinkering noise. Over the next few days it came on and off, then i drove the car to work and the tinkering noise kept getting louder and louder as i pulled up to a stop light, I heard what sounded like a loud burst of air followed by a extremely loud screaming noise. So i immediatly turned the car off and started it again to get my self out of the road and went another 100ft and stopped. I got the car towed to my house and its been sitting in my garage for about a month. Today i wanted to diagnose it again to really see whats wrong and today it acted alittle differently. When i tried to start the car it cranked fine and started. With it running for about 10 seconds i could hear air bursting every few seconds and stopping. I know im asking alot but im not extremely knowledgable about engines and i just need to know if my motor is toast or if i can fix it.

Last edited by souperman28; Oct 29, 2007 at 04:25 PM.
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Old Oct 28, 2007 | 08:39 PM
  #2  
Vader's Avatar
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Re: I bent my crank pully!

Can you post a photo of the front of the engine, including the balancer/sheave?
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Old Oct 28, 2007 | 09:52 PM
  #3  
SpitotRs305's Avatar
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: I bent my crank pully!

how does a jack "slip" of the K member and catch the crank pulley? must be one of those jacks equiped with lightspeed right...
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Old Oct 28, 2007 | 10:15 PM
  #4  
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From: California
Car: 1998 Corvette Conv.
Engine: 5.7l
Transmission: 6-speed
Re: I bent my crank pully!

If it just bent the pulley you're ok. The "toast" part would apply if you messed up the crank.
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Old Oct 28, 2007 | 10:24 PM
  #5  
online170's Avatar
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From: Ottawa, ONT
Car: 1987 Firebird
Engine: 355
Transmission: T56
Re: I bent my crank pully!

Originally Posted by SpitotRs305
how does a jack "slip" of the K member and catch the crank pulley? must be one of those jacks equiped with lightspeed right...
Hey man, out of all the cars ive ever owned, i have to say this is the absolute WORST car to ever jack up. SOOOOO much body flex, and they are usually so low, you cant frikin get the jack under. The rear also sucks with that stabilizer bar. anyways...

If it did slip off the k-member and catch the pulley, it probably torqued the pulley, clockwise if looking at the car from the driver side view.

Even so, i dont think trauma to the pulley would cause bending of the crank so severely that it would result in such horendous noises. If it did, your piston would probably hit your valve, and you wouldnt be able to start the car so nice if that happene.d
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Old Oct 28, 2007 | 11:17 PM
  #6  
souperman28's Avatar
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From: Fremont, California
Car: 89 IROC-Z
Engine: 350 TPI
Transmission: 700r4
Re: I bent my crank pully!

Well it was a new craftsman low profile jack and while it was jacking the wheel got jammed somehow so when the car got higher the jack stayed still and fell off.

I will take a picture tomorrow. Thanks for the input
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Old Oct 30, 2007 | 12:33 AM
  #7  
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From: Evansville,IN,USA
Car: 89' T/A, 00' Firehawk
Engine: 406 Roller
Transmission: TH700R4 w/2800 stall
Axle/Gears: 3.23 Posi
Re: I bent my crank pully!

I can see how it was a good idea to go through all that and start the engine to see whats wrong it.
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