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The mkiv Supra Owners Club

Aerotop bolts coming loose


MrGRT
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I would think it's just wear and tear at the age they are. Try cleaning the bolts and sockets up, if that fails get new bolts. That's all I can suggest I'm afraid, no doubt someone with more and better knowledge than me will come along with some better ideas.

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I always found that using the OE wrench would never tighten them enough and eventually broke. For years ive been using a strong aftermarket wrench with the oe head. Tightens harder and un does the bolts easier to. Make sure you follow the tightening sequence as i had the bolt come unloose for weeks until i figured it out lol

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I always found that using the OE wrench would never tighten them enough and eventually broke. For years ive been using a strong aftermarket wrench with the oe head. Tightens harder and un does the bolts easier to. Make sure you follow the tightening sequence as i had the bolt come unloose for weeks until i figured it out lol
Could you share the sequence? Didn't know that although I have tried different ones already. I am using an Allen key

 

 

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  • 1 month later...

I think evinX wanted to post this here:

 

90901-09004

 

You need 2 of them. These rarely go bad and if the threads on yours are stripped then the captive nuts inside the roof have had it to. Which would mean...new roof panel and 2 new front bolts.

 

 

 

 

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I've had my Aerotop about 10 years now and yes the front 2 are always coming loose unless you really tighten them (but do not overtighten them!)

 

Link here for bolt change and part number

 

http://www.mkivsupra.net/vbb/showthread.php?194788-how-to-change-front-aerotop-roof-bolts&highlight=AEROTOP+BOLTS

ChrisH, this was really helpful. I have changed the bolts now, hopefully don't have to change the roof panel like evinX mentioned.

 

Gotta take the car out and see

 

 

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