my crank pulley is rattling, what is a good aftermarket pulley and where does a guy get it from? its on a 99gtp
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08-07-2010
my crank pulley is rattling, what is a good aftermarket pulley and where does a guy get it from? its on a 99gtp
08-07-2010
I would just get one from the auto part store you might be hearing your balancer.
08-07-2010
i have went to 2 parts stores and they both say i have to order the oem from the dealer. pretty sure it is the crank pulley cuz i can see it wobble a little. i friend told me to listen to the pulleys with a hose... that is the pulley that is making the most, loudest noise.
08-07-2010
Mine was doing the same thing, and it was wobbling quite a bit..
I replaced mine with an 8-rib (factory is 6rib) so i could run a wider supercharger belt.
I got this one ZZ Performance
You can also get ZZ Performance
As far as OEM, you'd probably have to go through GM, which would charge out the ass, because like you said, my local parts house didnt carry them.
But once the new pulley was on, there was so much less vibration.
Hope this helps
08-07-2010
what caused yours to mess up? and was the 8 rib conversions worth it?
Last edited by chickenfried; 08-07-2010 at 03:38 PM.
08-08-2010
No idea what actually caused the vibrations, but if you watched the pulley while the engine was running, you could notice it wobbling. And the 8-rib was a nice upgrade that helps with belt slip if you're experiencing any, and I just decided to go ahead and do it.
08-08-2010
sounds like what mine is doing. thanks for your info!
08-09-2010
difference between that one^ and stock?
08-09-2010
zero
08-10-2010
there is no difference between stock and that one?i have not done alot of looking cuz i dont have the time. i get on a few forums now and then during a day buts thats bout it.
08-10-2010
the dorman one is the dorman replacement for the factory balancer.
its going to be basically the same, perhaps a little lower in quality, but its brand new, so it'll probably be the same.
08-10-2010
alright. got one coming. thanks
08-11-2010
As a heads up, you'll need 3 bolts to pull the crank pulley off, and I've never seen them come with a pulley puller kit.
You'll need 3 bolts with a thread size of 1/4-28, you can also get away with 3 M6 x 1.0 bolts. They need to be about 3 1/2" long, and you'll need some heavy duty washers(I used 3 grade 8 washers on each, and they still bent a little.
08-11-2010
already on it... i am taking it to the pros lol. i dont work on my car unless its stereo involved. everything else goes over my head, and when i take it to a mechanic that has been doing gm stuff for 20 years... im pretty confident in his work. thanks for the heads up tho!!
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