what happens if u dont torque spec flywheel bolts? - SR20 Forum
 
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#1 (permalink) Old 04-28-2004, 12:54 AM
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what happens if u dont torque spec flywheel bolts?

my friend forgot to torque spec the flywheel bolts on his car. is this super bad? what will happen to my buddy's car?
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#2 (permalink) Old 04-28-2004, 01:38 AM
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Re: what happens if u dont torque spec flywheel bolts?

Quote:
Originally Posted by nissanoholic
my friend forgot to torque spec the flywheel bolts on his car. is this super bad? what will happen to my buddy's car?

I can think of three things.
1)not tight enough shit start to vibrate out ,not good.
2)got them tight and nothing.
3)too tight shit breaks under pressure, not good either.
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#3 (permalink) Old 04-28-2004, 02:01 AM
Enjoy the GTR Matt!
 
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Re: what happens if u dont torque spec flywheel bolts?

ask Crim... sold his engine and got a DE cause he overtorqued a few

The guy who bought his old DET (George) had to have the bolt removed and re-tapped for a larger size all around.

Sweet '93 NX DE+T GT28RS- For Sale
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#4 (permalink) Old 04-28-2004, 07:53 AM
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Re: what happens if u dont torque spec flywheel bolts?

Quote:
Originally Posted by nissanoholic
my friend forgot to torque spec the flywheel bolts on his car. is this super bad? what will happen to my buddy's car?
THey will loosen up, you'll get a strange hard-to-locate rattling sound that doesn't happen all the time, then the centerhole on the flywheel will be ruined, you'll have a hell of a time getting the flywheel off, then you'll need a new flywheel.
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#5 (permalink) Old 04-28-2004, 10:51 PM
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Re: what happens if u dont torque spec flywheel bolts?

You dont wanna know....what does the FSM say? I think like from 65-75 ft/lbs isnt it?

94 Sentra SE-R, 10:1 Red Top SR20DE, ! 15.652 @ 87.34 mph....***Dead***
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#6 (permalink) Old 04-29-2004, 01:22 AM
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Re: what happens if u dont torque spec flywheel bolts?

Iv'e changed prob. ten clutches in all kindes of cars and never used a torqe wrench to put the flywheel on after having them cut. Even in my nx with a stage two clutch which takes alot of abuse at times. Depends on who you ask I guess.
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#7 (permalink) Old 04-30-2004, 10:52 AM
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Re: what happens if u dont torque spec flywheel bolts?

Quote:
Originally Posted by R0b_
ask Crim... sold his engine and got a DE cause he overtorqued a few

The guy who bought his old DET (George) had to have the bolt removed and re-tapped for a larger size all around.
Yeah no joke! thats an expensive mistake!! Ruin'd my DET!

Torq wrench is your friend. ALWAYS Torq to spec! Don't risk alot of money over being lazy.

Atleast george was able to get the DET motor fixed, gonna make me jealous if he ever gets a bigger turbo ***


EDIT: Nah, i UNDER torqed a few. well actaully, I over torqed one, and strip'd it out. Being lazy, I figured it'd be ok to run the car without that bolt. You know, to hell with keeping spinning objects in balance at 7500 rpm. I think It made it a week before the flywheel bolts backed out and destroyed the crank.

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