70 Diesel Governor

[henrye4020]

I have a '55 70 diesel that I think has governor problems. It has problems holding engine RPM even when moving on its own. It idles up just fine, but it won't hold RPM's without messing with the throttle under load. What could be wrong, and what would it take to fix it? Also, what are you thoughts on an electric start kit? Are they worth it?

 

[buickanddeere]

There is procedure in the service manual of how to setup the throttle and give or linkage . The nice folks at 1-800-522-7448 sell the real manual . Stay away from IT manuals .
Is the governor spring intact ?
Electric start conversions are a love or hate relationship . Depending on who you ask . For ourselves , the three diesels with starting engines are reliable because we know how to service them and will spend the time and money to do it .

 

[Blksmok]

Check to see if the lead weights are still attached where they should be. It is a common problem for the pin that holds them in place to break. I collect
70 diesels and always tell others that converting them to electric start is like farting in church.probably shouldnt do it. I agree wiith B-D that if you
maintain the pony engine and know how to operate it, they are very reliable. If you use the 70 diesel daily and do not care about the originality and
value of the tractor.the conversion may be good for you. Figure about $1000to do the conversion correctly. Biggest expenses are the cast iron
bracket for the starter, new battery and the starter itself. The electric conversion will not be trouble free and will not start the Diesel engine in cold
weather if the tractor sets outside and does not have a tank heater. The diesel engine has to spin at about 200 rpm for extended times and will quickly
drain a good battery.

 

[henrye4020]

Thanks guys,
I appreciate you getting back to me.
I think what I will end up doing is going through the pony- new coils, transmission parts, oil pump, etc. Maybe an overhaul? It smokes really bad. Is this normal? Dad says no, but I wanted to be sure. Any advice?
Henry

 

[buickanddeere]

There is a vendor who advertises in Green magazine . He sells overhauled long block starting engines .

 

[jdknucklebuster]

Rebuilding the starting engine is not hard but can be expensive. When I tore mine apart, I
found the piston ring end gap was a crazy .187 wide! It still ran and would start the tractor,
but exhaust threw oil all over. My cylinders check to size and only slightly tapered, but my
piston were worn to have .017 clearance between the bore and piston. New pistons were $500!!!!
I talked to Ryan Lind about the clearance while buying my parts from him. He said, put it back
together that way, it will be fine. When I started it up for break in, it didn't smoke but
didn't take very long before it was smoking again. Nothing like before, but it smokes. I have
never really saw one at the tractor shows not smoke, there are just different levels of smoking.