mf 135 diesel tachometer drive adapter

TNBuckHunter · Dec 18, 2017

I'm replacing all the gauges in newly purchased '67 MF 135 diesel. The PO did not have it connected at all so I bought a cable and it did not turn after installing it to the engine-side at the back of the camshaft. I pulled the plate to find a bad seal and no drive adapter installed in the back of the cam. I ordered the seal, drive adapter and gasket and I should have it this week. In looking at the picture of the drive adapter, it seems to have splines on one end of it that I assume would go into the back of the cam and the small square hole on the other end is where the cable goes.

I can't see the back of the cam all that well, but the female splines are not visible although they may be there. Will I have to drive that adapter into the cam? Hopefully, its not something that will require pulling the cam and taking to a machine shop to be pressed-in. Does anyone have any experience with this procedure?

Thanks in advance

MORRISONSTEEL · Dec 18, 2017

Could the marks that you are looking at be knurles not splines (drive fit).

TNBuckHunter · Dec 18, 2017

I could easily have used the wrong terminology. My apologies.

MORRISONSTEEL · Dec 18, 2017

I don't think that the fit is so tight that requires removing the camshaft, not much resistance to driving a tach, just needs to be in tight enough to not fall out.

TNBuckHunter · Dec 18, 2017

Thanks, that helps ease my concern some. I値l post to this thread when I知 able to get it installed with any observations or details that could help someone else.