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Old 10-08-2008, 01:23 PM   #1
theboy641
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Default 94 n/a supra questions

was changing my alternator belt 2day and found the bottom pully (crank) seemed to be fully foating and i was able to turn the outside of the pully in both directions, i think there is a rubber dampener built into these pulleys but im unsure if it has split and is allowing this to hapen, saying this the belt is still being driven.
Also when accelerating hard there is a knocking noise from the rear such as a worn bush, but when i looked it seems as tho there should be 2 mounts from the subframe to the diff but there is only 1 fited, when looking thru the other hole in the subframe you can see where another bolt should go into the diff, if anyone could help it would be appreciated.
cheers will
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Old 10-09-2008, 01:10 AM   #2
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Originally Posted by theboy641 View Post
was changing my alternator belt 2day and found the bottom pully (crank) seemed to be fully foating and i was able to turn the outside of the pully in both directions, i think there is a rubber dampener built into these pulleys but im unsure if it has split and is allowing this to hapen, saying this the belt is still being driven.
Also when accelerating hard there is a knocking noise from the rear such as a worn bush, but when i looked it seems as tho there should be 2 mounts from the subframe to the diff but there is only 1 fited, when looking thru the other hole in the subframe you can see where another bolt should go into the diff, if anyone could help it would be appreciated.
cheers will
Sorry to say this is one of the few common problems with high mileage mkiv Supras. You'll need a new crank pulley/harmonic balancer.

I'd suggest you call Toyota to get the proper bolt for your diff where it's misssing.
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Old 10-09-2008, 07:57 AM   #3
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cheers mate do you have any idea how much 1 is and you do think there is a mount missing for the diff.
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Old 10-10-2008, 12:01 AM   #4
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cheers mate do you have any idea how much 1 is and you do think there is a mount missing for the diff.
A bolt from Toyota won't be more than a few bucks or so. Can you post a pic of the area with the missing bolt?
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Life begins at 30psi.


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Old 10-10-2008, 07:39 AM   #5
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have just found out that the turbo models have 2 mounts and non turbo models only have the 1. also have found a standard bottom pulley for ?110+vat and delivery.
also was out lastnite and some w**ker managed to hit my car wen driving past, has left 2 marks down side of car and cracked the mirror plastics, gr8 huh
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Old 10-11-2008, 08:04 PM   #6
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have just found out that the turbo models have 2 mounts and non turbo models only have the 1. also have found a standard bottom pulley for ?110+vat and delivery.
also was out lastnite and some w**ker managed to hit my car wen driving past, has left 2 marks down side of car and cracked the mirror plastics, gr8 huh
Good news on the mounts and the pulley, but really sorry to hear about the w**ker.
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Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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Old 12-20-2008, 03:12 AM   #7
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Originally Posted by pwpanas View Post
Sorry to say this is one of the few common problems with high mileage mkiv Supras. You'll need a new crank pulley/harmonic balancer.

I'd suggest you call Toyota to get the proper bolt for your diff where it's misssing.
There's going to be no problem in my case. I am really planning to change my crank pulley since last month. Maybe it's time to purchase one now.

Last edited by pwpanas; 12-20-2008 at 03:17 PM.
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