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Old 01-04-2006, 09:58 PM   #1
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what can happen when crank pulley goes loose?

i bought a FS pulley a couple of days ago and i guess i didnt tighting hard enough and now the car wont start up.it does feel like it wants to.i know for sure is the pulley.but i want to know what else can happen.help anybody?


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Old 01-04-2006, 10:00 PM   #2
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It may slip and make the timing jump off? That is my guess...Someone will tell me if I am wrong.

Reading that you say the car "wants" to start up, the timing might already be off.
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Old 01-04-2006, 10:06 PM   #3
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the crank pully powers the accessories, and at least from what i could tell when i replaced mine last week has no affect on the timing. i could be dead wrong though.

since theres already an open thread now about udp problems i have a question of my own. i tightened everything back down as tight as i could (with an impact mind you) and i am getting a really nasty screeching noise occasionally now. though it only seems to happen under increased load on the alternator, such as headlights/foglights and stereo on. if i turn of my headlights the sound immediately goes away...not sure what is going on.
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Old 01-04-2006, 10:26 PM   #4
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i dont think the pulley has anything to do witht the timing but about the noise u might have tighten it up a bit too much or its just that u took the stock harmonic silencer off(stock pulley).thats my guess,but i dont think i messed anything up,i think its just that pulley is just loose,but u never know,but help is always needed.
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Old 01-04-2006, 10:29 PM   #5
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The crank and cam gears both affect the timing. They need to be aligned properly at TDC (top dead center)
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Old 01-04-2006, 10:37 PM   #6
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The bottom pulley does nothing about the timing BUT behind the pulley you have the cogged drive for the cam timing belt, Depending on how loose the pulley go your keyway could of come off but you would just about have to loose your pulley all togather

When the bottom pulley is loose it can spin and you water pump wont turn and the engine can run VERY hot. Did you run hot why this was going on?

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Old 01-04-2006, 10:39 PM   #7
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Well, I was partially right but mostly wrong.
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Old 01-04-2006, 11:34 PM   #8
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no it was not runnig hot at all. i was just pulling out of the gas station and and i reved it up till about 5,600 and then the car started to die and when i stoped to c what was wrong,te car died and it didnt want to start.it wants to start but its missing something,im gonna tighten the pulley tomm with an impact gun and ill tell u guys what happen
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Old 01-05-2006, 07:14 AM   #9
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If you tighten it with an impact gun it shouldn't come off.

Alot of times people do not put the belt on and recheck after the car was run. It's real easy to miss a tooth on one of the pulleys. Also check to make sure your not rubbing on the non-moving part of the tensioner.

I think your starting problem is a battery one. You might not be charging the battery all the way for 2 possible reasons. You need to get a tune to raise the idle to compesnate for the UDP or the belt is off on the ALT.

+

Also if you crank pulley was loose you could increase the wear on your belt with would cause a friction squeek and a slipping on the accessories (ALT,A/C,H20).
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Old 01-06-2006, 05:19 PM   #10
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well i tighten the bolt of the pulley.at first it kinda hesitated then it idled and turned off.but then i moved the car by foot a little bit and started the car and then it was fine. it ran good the it suppose to and i revd it a couple times that night pretty hard and nothing happen that was the good thing!but it went good and nothing is wrong at all,well i hope so
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