gearbox mounted compressor

[Jacques Reed]

Originally Posted by Phil Waterman

Hi Everyone

Can someone confirm my recollection that these transmission driven air pumps are not intended to operate full time? That the gearing is such that much above idle speed they are being badly overspeeded.

My memory is based on something in a manual, drivers handbook, or service bulletin which I can not lay my hands on at the moment.

Cheers Phil

Hi Phil et al,

Again, from the Ford "Special Pattern Vehicles" Manual they say bring engine up to 900 RPM or 16 MPH equivalent engine speed as per attached.

I agree, it sounds a bit fast but perhaps a later service bulletin countermanded that instruction. I never used mine, but if I did, I think nothing more than a fast idle would be the way to go.

Cheers,