[AT] Allis C Oil Pump....

[carl gogol]

Is it possible the clearance between the gears and the housing have worn and 
are too wide on your oil pump?  Seems like the spec on the D-14 is about 
0.005" -- it is relatively easy to lap the housing to bring the clearance 
back to the spec,  In my case the cover was grooved by the gears and I just 
lapped the cover to take the grooves mostly out.  Anybody with a repair 
manual on the C should be able to find that spec for you.  Or perhaps the 
pump is different than the D series - but AC was really good about reusing 
solid designs.
In my case, I still needed a new spring and ball for the relief to restore 
full pressure.
Carl Gogol
Manlius, NY
AC One Seventy diesel
(2) AC D-14, AC 914H
Simplicity 3112 & 7116
Kubota F-2400, B-7300
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