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Re: The Noise Problem Is Solved!

To: Sage <ssage@socal.rr.com>
Subject: Re: The Noise Problem Is Solved!
From: derrick gregory schmidt <dschmidt@usc.edu>
Date: Sun, 31 Aug 2003 15:40:48 -0800
" repeated full pedal to the metal runs"

I suggest you continue this endlessly to make absolutely sure that's what the 
problem is!



----- Original Message -----
From: Sage <ssage@socal.rr.com>
Date: Sunday, August 31, 2003 2:50 pm
Subject: The Noise Problem Is Solved!

> Thanks to all the great suggestions from the list about what my weird 
> noise was on hard acceleration only. It had sounded like it was coming 
> from under the passenger floorboard, and sometimes toward the back of 
> the car, sometimes more from the front.
> I should have figured this out earlier, but the cause of the noise 
> turned out to be the Tiger's water bottle bracket (the piece welded to 
> the engine compartment panel in the front). It's amazing how that noise 
> at no time seemed like it was coming from the engine compartment.The 
> motor mounts must be cracked or sagging since it turns out that under 
> full acceleration, with the engine torquing to the right, my A/C 
> compressor pulley (which is hung from the old stock generator bracket 
> and to the engine) was just making contact with the edge of the water 
> bottle bracket. Under close inspection, two groves were worn into the 
> bracket, exactly lining up with the compressor pulley edges.
> As a temporary fix before I get the motor mounts replaced I used a 
> Dremel grinder to take off about 1/3" at the end of the water bottle 
> bracket. The noise is completely gone now even after repeated full pedal 
> to the metal runs. Now that I've gotten rid of my pinging (had to retard 
> the timing more than I like, though) and the bracket noise, and can put 
> the pedal all the way down again without worrying, all I need is about 
> 100 more horepower to make me happy.
> Steve Sage
> Tiger MK1A

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