[AJD] 1930 GP Leaky Radiator, Ensign Carb, Air Cleaner

[Chas. C.]

Luke,
>>How much oil should be in the valve chamber on top of the engine?<<

Regarding the above question. Reading from my book "Instructions for the 
care and operation of John Deere General Purpose Tractors" it is recommended 
that you drain and flush valve tappet chamber once each season by removing 
small plug on right hand cylinder block, and tappet inspection case cover on 
top of cylinder block. Refill with 1 1/2 pints consisting of 3 parts engine 
oil and one part kerosene.
The above pertained to my 31 GP with is the big bore but I believe that the 
valve chamber is the same size.
Personally, I did not use the kerosene method. When I got my 31 GP this 
chamber was almost dry and the valves were sticking which created a back 
fire that would tear your ears off. After cleaning mine out I used the 1 1/2 
pints of equal amounts of motor oil and Marvel Lubricating oil. It worked 
wonders.
Don't worry about the oil not covering the valve stems. The lubrication is 
accomplished by the splashing of the oil in the reservoir up onto the valve 
stems. I tried covering the valve stems on mine once. Oil was sucked into 
the engine and it smoked something terrible.
As for your radiator problem, I had the same thing with my GP. After playing 
with it for almost 3 years and not completely getting rid of the leak I bit 
the bullet and purchased a new core from Melanie Sharp at Sharp's place in 
MO. Not a sign of a leak since.

I am surprised that Paul or Michael Ostrander have not gotten in here on 
this. They are the real experts on the GP. They have helped me many times. 
If you would like their e-mail address let me know.

Charlie

I notice by your signature line that you are in Rockford, MI. I am your 
neighbor to the south. Live just outside of Alto.