Hi Chris, I hope you can give me some comments following up the first work for my 77 gas after a 2-year rebuilding project.   No rush on any of this.

It runs smooth and has all the power I would expect.   Just did a little baling, small bales, and trips to neighbors etc.   


1. Oil pressure needle goes only about halfway through the green area. Just barely in green if idling. 

The old gauge went all the way right and stayed there.  I will try the old gauge again to see what it says now.

I did replace the old pump with a used one.  Vanes seemed good. I never was able to line it up for timing they way they show in the book.  But I compensated the timing by having the  distributor turned a bit from where it used to be.

Don't know whether this was a pump from a different model tractor, or....... something else in engine?

2.  Exhaust manifold seems to heat a bit strangely.   It was painted with the engine.   After 1-2 hours use, the paint is all burned off in the section just behind the muffler.  Paint has turned black on either side of that.  
#1 cylinder exhaust port still green.

Maybe it's that air from the fan hits the front (#1) area, and less so further back....   #1 is firing, I tried with and without the spark plug wire on.  

3. I have quite a whine when moving -- kind of like the regular 3rd gear whine but louder and in all gears.   Toward the rear, and more so after things are warmed up.  I did not do anything with the transmission in the rebuilding, just had rear axle seals and gaskets replaced by the dealer.

Wonder if I may not have the shims quite right in the PTO clutch.  Noise is in that general area.   PTO did seem to handle the baler ok, including a few spots where the governor had to open the throttle a bit.


I appreciate all your advice.  It wouldn't be running yet without your help.  As I said, no hurry on any of this.

Tom