My OC-3 dozer has an interesting bug. It quits under load when pushing uphill - a 20 degree slope.
No missing, spluttering or other symptom - just quits like I pulled the stop button. Restarts as soon as I can get to the starter button. Backs down, works ok on the level. Occasionally will push a blade full up the slope after working on the level for a bit, but quits on the second push.
I've just tuned up the mag - new points and condenser, lots of fire on the bench, and fired right up after installing it. Started to go to work, and now this!
Any thoughts?
I'd take a guess at fuel flow somewhere along the system.
Dave
Maybe the governor needs adjusting.
Since gas outlet is towards the rear of the gas tank, might there be a pocket of water in there? I had same thing going downhill in an OC4, where outlet is at the front. Once I drained everything including water out of tank, it was fine.
Sounds like its a fuel delivery problem. Try unscrewing the fuel line from the carb when you have the tractor at that angle and see if you have any gas flowing. I would also check the float inside the carb, if the level is wrong it could be shutting the fuel off.
Thanks, gents.
It was indeed a fuel restriction - the hole on top of the sediment bowl going up into the tank was nearly completely plugged with wood fragments.
Probably fall-off from checking fuel level with odd sticks over the years. The tank, sediment bowl and and carb were clean otherwise.
Thanks for the update, Glad you got it fixed.
Dave