DeTomaso Mailing List: November 2000, Message #665

>I'm not having nearly the problems with my car as Kirby is having 
>right now with his GT5-S, but the simple job of swapping the stock 
>A/C compressor for a rotary one is turning out to be more difficult 
>than planned.

Well... it's not actually my GT5S, but it was supposed to be and I wish it was!
;-)

>Of course the bearing in the adjustment pulley is shot, I'm trying 
>to find one in Spain

I think you'll be successful there. It's a pretty standard bearing.

>, but the killer is the A/C filter/dryer. The one that came with 
>this one (sourced from Hall but bought in Europe unused) had only a 
>connection for the a/c lines coming in and going out. On my car, 
>there is also a switch to trigger the condenser fan. No such animal 
>on the new filter, if putting on a new compressor I really ought to 
>replace the 15-year old filter, right?

9390 also has a switched dryer for the condenser fan. And a low and 
high pressure switch from what I can tell...

>How is the fan controlled on earlier cars?

They shut off when the compressor shut off. Which is bad and which is 
why the newer cars have it modified to be on all the time when the 
A/C switch is on. Dennis Quella modifies all older cars the same way 
as I imagine other vendors also do.

>  I guess the filters are not compatible between early and late cars. 
>Hall is sending me a new filter for the later cars...  But at every 
>step of installing what is widely advertised as a true 
>"plug-and-play" upgrade, something doesn't fit as it should.

Isn't your engine a Windsor? That could have something to do with the 
bracket issue maybe...

FWIW,

Kirby