Primary gauges for 1978 M20J

[Ruth and Brian]

Hello, 

does anyone know if someone has a functioning Dual manifold pressure/ fuel flow gauge for a 78 M20J? We will do upgrades later,  it need one now. Just bought this aircraft, but the fuel flow gauge is jumping all over.

Ruth and Brian

[mike_elliott]

Fuel pressure fluctuating on an IO360 may not be the guage, but could be an air leak in the fuel selector, a pin hole in the mechanical pump diaphram, or another source of air. Best make sure here. Does it stabilize when you put on the electric pump? If so, suspect a new mechanical pump is in your future. Most mechanics fear this job, but it really isnt as bad as your typical cezzna mechanic will make it out to be.

 

[Ruth and Brian]

Thanks.

maybe we will check it out further.

Brian and Ruth

[mike_elliott]

1 minute ago, Ruth and Brian said:

Thanks.

maybe we will check it out further.

Brian and Ruth

You should.

[EricJ]

I have this one available.   Came out of my 77J last summer when the EDM900 went in.   PM me if interested.

[Ruth and Brian]

Thanks. We will talk to our mechanic.