Ken Powell wrote:

For those of you who are looking for a vacuum pump, the smog / air pump
on my '89 Mustang weighs 5 LB 7 OZ.  Also, for those who want AC in
their airplane, the air conditioner weighs 27 LBs; this includes the
hoses, compressor, dryer, and condensor, but not the evaporator.

Ken P.

I took my Nippon Denso air pump apart. At least 8 roller
bearings in there. Looks bullet proof. The vane seals look
like apex seals in the wankel. I will try to remember to weigh
it today.

Paul Lamar
 
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