Underdrive pulley install?
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Joined: Mar 2006
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From: Tampa/St Petersburg
Vehicle: Turbocharged 2001 Hyundai Tiburon
~~UPDATED AT BOTTOM OF PAGE~~
hey guys i got my new crank pulley today from OBX and i was wondering what i have to do to install it. i searched here and the internet and i couldnt find anything good. one site had a rough description of the install with no pics, he said i would have to take off the pass wheel and stuff and i didnt know if it was right...lemme see if i can find it again...
http://webhome.idirect.com/~trini/car/pulley.html
cyber said this/ in an old thread but i dont fully understand
if any body has done this before and can tell me what i need to install it, (ive heard impact wrench?).. i think its the crank pulley.. ill get some pics but its the same one that OP had www.rdtiburon.com/forum/showthread.php?t=3868&highlight=underdrive+pulley+install
hey guys i got my new crank pulley today from OBX and i was wondering what i have to do to install it. i searched here and the internet and i couldnt find anything good. one site had a rough description of the install with no pics, he said i would have to take off the pass wheel and stuff and i didnt know if it was right...lemme see if i can find it again...
http://webhome.idirect.com/~trini/car/pulley.html
cyber said this/ in an old thread but i dont fully understand
QUOTE (cybershark)
^it's not hard..just gotta remove that crank bolt with an impact or securing a breaker bar and bliping the motor.
if any body has done this before and can tell me what i need to install it, (ive heard impact wrench?).. i think its the crank pulley.. ill get some pics but its the same one that OP had www.rdtiburon.com/forum/showthread.php?t=3868&highlight=underdrive+pulley+install
yes, that is the crank pulley you are looking at.
When I did mine, I did not have access to an air wrench so I used the "blip the engine" trick.. it is a matter of knowing which way your engine rotates when running (I forget at the moment from inside the wheel well) and using a good sturdy (preferably half inch) rachet or breaker bar with the proper socket on the crank nut, place a long extension or pipe over the handle of the rachet (or breaker bar). After making sure that the extension (or pipe) will not hit anything on the car (I prefer to rest it on the ground in the direction of engine travel, so that the spin will try and leverage against the ground) Then, with the wires off of the coils (or plugs, your choice) gently blip the starter so that at most, the engine moves a litte. It does not take a lot to break it loose and you do not want it coming off when the engine is spinning..
When I did mine, I did not have access to an air wrench so I used the "blip the engine" trick.. it is a matter of knowing which way your engine rotates when running (I forget at the moment from inside the wheel well) and using a good sturdy (preferably half inch) rachet or breaker bar with the proper socket on the crank nut, place a long extension or pipe over the handle of the rachet (or breaker bar). After making sure that the extension (or pipe) will not hit anything on the car (I prefer to rest it on the ground in the direction of engine travel, so that the spin will try and leverage against the ground) Then, with the wires off of the coils (or plugs, your choice) gently blip the starter so that at most, the engine moves a litte. It does not take a lot to break it loose and you do not want it coming off when the engine is spinning..
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Joined: Mar 2006
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From: Tampa/St Petersburg
Vehicle: Turbocharged 2001 Hyundai Tiburon
hmm that sounds good... so i have to take off the wheel and such? any thing else?
yah thanks for the explanation about bliping your engine... i had no idea what it was
yah thanks for the explanation about bliping your engine... i had no idea what it was
You're probably gonna have to get a belt that's smaller in diameter then the stock one(s). The tension pullys are adjustable on both belts (the alternator is the tension pully for the second belt, the first belt tension pully is located by the crank) so it dosn't have to be perfect..just make sure you have another vehicle to get to an AutoZone or similar store.
Thread Starter
Senior Member

Joined: Mar 2006
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From: Tampa/St Petersburg
Vehicle: Turbocharged 2001 Hyundai Tiburon
ok thanks i think i just about got it now.. but about how much smaller than stock? do you recomend bringing it into autozone and saying, " i need two belts that are a little smaller than this one?" anybody have quantitative estimations on belt diameters? or is it just a general "size" smaller?
Thread Starter
Senior Member

Joined: Mar 2006
Posts: 4,334
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From: Tampa/St Petersburg
Vehicle: Turbocharged 2001 Hyundai Tiburon
alright man thanks i should be all set when i do it in a couple weeks...maybe ill write up a DIY when i do it.. im gonna have to wait until i go home though..darned it, i just went home.. if only it would have came on stupid friday i could have done it over the weekend... spring break here we come..


