[DeTomaso] Air Conditioner Compressor Belt Tension

[Thomas Tornblom]

I'm running with no tensioner at all.

With the "correct" belt it is possible to do away with it and adjust
belt tension with the compressor position. The compressor  can be moved
slightly as the holes in the bracket are elongated. This works at least
if you have converted to a modern "rotary" compressor.

I have been using a 9.5x865mm (3/8" width) belt for many years without
problems, but I'm now trying to find the correct 11.9 (7/16" width) belt
and if I'm lucky I just might have found it, but I haven't had the time
to check it yet.

The main reason I got rid of the tensioner was that the bearing had
seized and when I replaced the bearing, I got the wrong belt, and it fit
without the tensioner.

I'm using the tensioner hole for the crank trigger now. :-)

Thomas

Charles Engles skrev:
> Dear J. Sean,
> 
> 
>                I think that you are describing the stock AC belt pulley 
> tensioner?    You don't have the PPC upgrade?
> 
>                 If it is stock, then it is perfectly normal for it to appear 
> to be impossible to loosen, adjust and retighten.  It is not impossible.  It 
> is just so much of a PITA, that you will be motivated to buy the modified 
> piece from PPC.    I adjusted mine once twenty years ago and quickly bought 
> the modified piece and marveled at how much better it worked and was 
> fabricated than the stock unit.   It has been so long since I did it that I 
> can only recall you will likely need to gain some access to the nut away 
> from you in the cockpit by jacking the car up and coming at it from below 
> and behind.  It is doable, but the pain, the pain (in the ass...).   Two 
> people do make it easier, but one can do it with enough profanity.
> 
> 
> 
> 
>                              Stiff upper lip,  Chuck Engles
> 
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "J. Sean Keane" <spleen at spamcop.net>
> To: <detomaso at realbig.com>
> Sent: Saturday, August 01, 2009 1:45 PM
> Subject: [DeTomaso] Air Conditioner Compressor Belt Tension
> 
> 
>> How do I adjust the tension on the belt to the air conditioner
>> compressor?  The 3/4" nut on the front obviously isn't the answer, and I
>> can't see how to get to anything on the other side that would let me
>> loosen it.  I know the answer has got to be simple, but I just can't see
>> it.  Thanks.
>>
>> Regards,
>>
>> J. Sean Keane
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