When installing Underdrive Pully

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02-15-2001, 08:30 PM

felix_xiii

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Join Date: Dec 2000

Posts: 90

I just got my unorthodox racing underdrive pully for my second gen max. Now I know that when I replace the belts they need to be .25% smaller than stock, but Im not sure which belts I need. Do I need 3 belts: Alternator, AC, + WP, PS, and idler belt? Please help me out, thanks.

02-16-2001, 07:51 AM

WZLY

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You might try calling Unorthodox -- they're usually pretty
cool. 631-253-4909

Good luck with the install

-Brenda

02-16-2001, 11:08 AM

Nismo87SE

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Join Date: Aug 2000

Posts: 2,807

You will only need the AC and water pump/PS belts. No need to touch the alternator belt. If you plan to do the install get a torque wrench and a breaker bar. Torque the crank pulley nut to 90-98 ft-lb. BTW if there is no overhang from the pulley on the crankshaft don't install it! Otherwise over time it will walk up and down the journal and destroy the key. Once its socket is gone then you will need a new key or you'd have to weld the key in. Either way its a big mess.

02-16-2001, 12:53 PM

felix_xiii

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Join Date: Dec 2000

Posts: 90

Quote:

Originally posted by Nismo87SE
You will only need the AC and water pump/PS belts. No need to touch the alternator belt. If you plan to do the install get a torque wrench and a breaker bar. Torque the crank pulley nut to 90-98 ft-lb. BTW if there is no overhang from the pulley on the crankshaft don't install it! Otherwise over time it will walk up and down the journal and destroy the key. Once its socket is gone then you will need a new key or you'd have to weld the key in. Either way its a big mess.

Gotcha, no need to replace alternator belt. Okay will look out for no overhang on the crackshaft. My dad's friend is a mechanic and hes going to help me, I hope he knows what he's doing. Thanks a lot...

BTW Nismo, do you hang out at the yahoo club anyomre?