crankshaft bolt loose!!
07-09-2006, 12:11 PM
#1
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crankshaft bolt loose!! i found out today that my crankshaft pulley bolt is loose, i can turn with my just my hand. My engine also threw a code p0300 - engine misfire, which *i hope* is because of this. Can i just retighten the bolt with an offset box wrench and be good to go? or is it more complicated than that?
07-09-2006, 12:14 PM
#2
Originally Posted by jerrypc
i found out today that my crankshaft pulley bolt is loose, i can turn with my just my hand. My engine also threw a code p0300 - engine misfire, which *i hope* is because of this. Can i just retighten the bolt with an offset box wrench and be good to go? or is it more complicated than that?
07-09-2006, 12:56 PM
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crap, thats what i thought. i dunno about camaro's and trans ams, but on vette's to get the bolt completely out i have to remove this rack and pinon steering bar which is probably a pain. if everyone says to get a new bolt i guess thats what needs to be done.
07-09-2006, 01:04 PM
#6
Originally Posted by jerrypc
crap, thats what i thought. i dunno about camaro's and trans ams, but on vette's to get the bolt completely out i have to remove this rack and pinon steering bar which is probably a pain. if everyone says to get a new bolt i guess thats what needs to be done.
You may as well upgrade to a better balancer/underdrive pulley while you're down there, and if you do, don't forget to get the proper length belt. Good luck.
BTW, welcome to LS1tech.
07-09-2006, 01:06 PM
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Do you have a cam or anything? Is this the stock bolt that just came loose? Has it ever come off before? That's weird if not.
Definitly get a new bolt, and if you have a vette, the steering rack will have to come out for sure, you're lucky the crank didnt walk off, that heppened to a freind of mine. And us lower class fbody owners don't have to remove anything, we can just lay down and change the bolt =p
And in my poinion and from what i've seen, the crank pully comming loose would not cause any problems with trouble codes, there's no sensors and the belt has nothing to do with the timing of the motor, so I'd say you have another problem.
It sounds to me like you caught it really early, like it had just happened. It doesn't sound like the crank pully walked at all or you'd have oil everywhere as the pulley being seated is what seals the oil from comming out the front of the motor.
Definitly get a new bolt, and if you have a vette, the steering rack will have to come out for sure, you're lucky the crank didnt walk off, that heppened to a freind of mine. And us lower class fbody owners don't have to remove anything, we can just lay down and change the bolt =p
And in my poinion and from what i've seen, the crank pully comming loose would not cause any problems with trouble codes, there's no sensors and the belt has nothing to do with the timing of the motor, so I'd say you have another problem.
It sounds to me like you caught it really early, like it had just happened. It doesn't sound like the crank pully walked at all or you'd have oil everywhere as the pulley being seated is what seals the oil from comming out the front of the motor.
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07-09-2006, 01:17 PM
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thanks for the welcome, ShevrolayZ28!
afaik, its the stock bolt...the stock pulley that is on there seems to be ok, maybe a very SLIGHT wobble when looking at it. There are no oil leaks anywhere, but the AC and serpentine belts did jump one groove over, which consequently got shredded off. now they are running on 3 grooves instead of 4.
i may have to torque this loose bolt up somewhat to drive it to a shop. i definately don't want the bolt to break though!
oh and no cam or any other mods either.
afaik, its the stock bolt...the stock pulley that is on there seems to be ok, maybe a very SLIGHT wobble when looking at it. There are no oil leaks anywhere, but the AC and serpentine belts did jump one groove over, which consequently got shredded off. now they are running on 3 grooves instead of 4.
i may have to torque this loose bolt up somewhat to drive it to a shop. i definately don't want the bolt to break though!
oh and no cam or any other mods either.
Last edited by jerrypc; 07-09-2006 at 01:24 PM.
07-09-2006, 01:25 PM
#9
Originally Posted by jerrypc
afaik, its the stock bolt...the stock pulley that is on there seems to be ok, maybe a very SLIGHT wobble when looking at it. There are no oil leaks anywhere, but the AC and serpentine belts did jump one groove over, which consequently got shredded off. now they are running on 3 grooves instead of 4.
no cam or any other mods either.
no cam or any other mods either.
07-09-2006, 03:32 PM
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just for clarification..is there a harmonic balancer and a pulley on there? or just a pulley? or are they just synonyms for the same thing? anyone have a diagram by chance?
07-09-2006, 08:32 PM
#12
Originally Posted by jerrypc
just for clarification..is there a harmonic balancer and a pulley on there? or just a pulley? or are they just synonyms for the same thing? anyone have a diagram by chance?
08-01-2011, 09:30 PM
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Yea I'm a dumbass and when I rebuilt my motor I reused my crank bolt not thinking and it has came loose and cause the balancer to fall off like 6 times I'm waiting on a new bolt to come in
08-01-2011, 10:01 PM
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do you have an auto or manual trans? auto=pulling starter and holding the flexplate while you tighten the bolt. Manual= putting it in gear and tightening the bolt. on F bodys anyway.
08-02-2011, 05:20 AM
#16
arp bolts run about 40 bucks shipped..
stock bolt you need to get from the dealer, put loctite on it, torque to 37ft pounds then stretch the bolt by trying to turn it 140degrees. These are one use bolts.
stock bolt you need to get from the dealer, put loctite on it, torque to 37ft pounds then stretch the bolt by trying to turn it 140degrees. These are one use bolts.
