Has anyone tried to use a Chevy belt driven vacuum pump ? They are readily available, reliable and reasonably compact. They were used on the Chevy pickups with the 6.2 litter diesel engines. I put well over a 100K miles on one with no problems. They could be belt driven or a coupler could be easily made to drive them direct. Just a thought. > > > > My dad's old KR-2S started out using a venturi that was mounted on the > bottom of the fuse between the main gear to drive the attitude indicator > and the DG. > > Later on, he machined a mounting plate and a belt drive to run a normal > aircraft vac pump off the Revmaster 2180 and that worked like a charm. I'm > not sure how he did it, but I could get you his email if you'd like to > ask. > > >
