1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Clunking noise upon acceleration

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Old 07-08-02, 10:21 AM
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Where did my 7 go?

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Clunking noise upon acceleration

Sometimes when I first accelerate, change gears, or let out the clutch, I hear a "clunking" or a small "thud" noise from the trannie or diff.. i can't really tell. How do i fix this? Its really annoying.

Matt
Old 07-08-02, 02:51 PM
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Lapping = Fapping

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It could be an exhaust part hitting something. Is your exhaust stock? Maybe you have a bad motor mount? Is your tranny mount secure?
Old 07-08-02, 02:54 PM
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the torquinator

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u-joints are the most likely culprit
Old 07-08-02, 02:58 PM
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is the tranny well lubricated? When didja change the oil last?
Old 07-08-02, 03:28 PM
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Where did my 7 go?

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Tranny oil has never been changed. I'm eventually going to get some Redline MT-90 to put in there. After searching a bit, its probably the u-joints. I'm going to jack up the car later and see if I can wiggle the driveshaft around. If it IS bad, anyone have a good spare? Junkyards are NOT good anywhere around here.

Matt
Old 07-08-02, 05:05 PM
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For a wearing joint like a U-joint, don't cheat yourself. Buy new.
Old 07-08-02, 05:18 PM
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sometimes you can get a driveshaft custom built for less than a new one. i had one made for my old gslse that cost about $220. and the u joints those guys used were much heavier duty than what the stock ones were.
Old 07-08-02, 07:17 PM
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Get yerself a new one at Mazdatrix for $242.
Old 07-08-02, 11:39 PM
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Where did my 7 go?

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Thanks for all the info.. I'm prob. going to get a new one.

Matt
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