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tightening harmonic balancer bolt? 

 

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 Post subject: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 5:36 pm 
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hey guys just wondering how do you tighten your harmonic balancer bolt without the crack turning?
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 5:53 pm 
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think we did a 'small' turn of the motor to undo & tighten up ... word of warning DO NOT actually start the car .. just a 'quick' on/off of key - had breaker bar resting on subrail


someone else may have a betterer way of doing it :mrgreen:
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 6:11 pm 
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got the motor out atm just replace the timing cover gasket would it hurt to use a air rattle gun?
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 8:09 pm 
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 8:14 pm 
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if the motors out, screw one bell housing bolt back into the block and get a large flat head screwdriver in against that bolt into the ring gear teeth to hold the crank from turning
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 8:40 pm 
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Mad2 wrote:
think we did a 'small' turn of the motor to undo & tighten up ... word of warning DO NOT actually start the car .. just a 'quick' on/off of key - had breaker bar resting on subrail


someone else may have a betterer way of doing it :mrgreen:

Well id suggest not doing this at all unless you have prevented the engine from starting, i usually remove the fuel pump fuse and then start the car so the fuels all gone and it no longer runs.

 

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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Thu May 28, 2015 8:50 pm 
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bry40l wrote:
Mad2 wrote:
think we did a 'small' turn of the motor to undo & tighten up ... word of warning DO NOT actually start the car .. just a 'quick' on/off of key - had breaker bar resting on subrail


someone else may have a betterer way of doing it :mrgreen:

Well id suggest not doing this at all unless you have prevented the engine from starting, i usually remove the fuel pump fuse and then start the car so the fuels all gone and it no longer runs.



if i remember correctly .... one car had stuff missing .... one didnt .. dont remember what was done for the daily driver. brother inlaw taught me that one, plus was only way we could get it undone etc
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri May 29, 2015 11:20 am 
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The bolt in the starter motor Holes, and using a screwdriver is the norm.

Nigel
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri May 29, 2015 3:08 pm 
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jamie22_cole wrote:
got the motor out atm just replace the timing cover gasket would it hurt to use a air rattle gun?
Should be okay, you should only need to hold the balancer pulley with a rag, provided the rattle gun has a decent amount of torque. Best too if you creep marked the bolt and balancer before undoing. Otherwise, use a breaker bar and restrain the crank as mentioned.
bry40l wrote:
Mad2 wrote:
think we did a 'small' turn of the motor to undo & tighten up ... word of warning DO NOT actually start the car .. just a 'quick' on/off of key - had breaker bar resting on subrail
someone else may have a betterer way of doing it :mrgreen:

Well id suggest not doing this at all unless you have prevented the engine from starting, i usually remove the fuel pump fuse and then start the car so the fuels all gone and it no longer runs.
Yeah, pretty risky - pull the CRT LP fuse in Smartlock cars - engine will motor over but not start.

 

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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri May 29, 2015 6:30 pm 
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if you cant flick the key quick enough to prevent it from starting then your doing it wrong.....
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri May 29, 2015 8:15 pm 
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Bit late though to find that out.

 

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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri May 29, 2015 9:00 pm 
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Sun May 31, 2015 1:56 pm 
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Quote:
if the motors out, screw one bell housing bolt back into the block and get a large flat head screwdriver in against that bolt into the ring gear teeth to hold the crank from turning


Quote:
The bolt in the starter motor Holes, and using a screwdriver is the norm.


What they said 8-)
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Tue Jun 02, 2015 9:33 pm 
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Mad2 wrote:
think we did a 'small' turn of the motor to undo & tighten up ... word of warning DO NOT actually start the car .. just a 'quick' on/off of key - had breaker bar resting on subrail


someone else may have a betterer way of doing it :mrgreen:


I've seen crankshaft ends snapped off from doing that. I used to insert new ends on them that's why I know. They are cast iron.
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 Post subject: Re: tightening harmonic balancer bolt?
Posted: Fri Jun 05, 2015 10:39 pm 
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You can use the starter to "crack" a frozen pulley bolt that won't come out. But don't try to tighten it with the starter. The torque is immense. If you tighten it even a fraction of a revolution too far, something is going to break. If you're lucky, it'll be your breaker bar - but I wouldn't bet my engine on it.

+1 for big screwdriver in the flexplate/flywheel teeth, supported by a bolt in the block to keep the crank from turning. It works like a charm....and it's safe.

 

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