machinefarmer
New member
- Joined
- Jul 11, 2009
- Messages
- 5
I have a 1602D that has ran great for 8 years, until now. What I thought was a fuel problem did not go away after I replaced all the fuel lines from the tank to the pump, cleaned everything in between and replaced the filter. (again) Here's the problem...engine runs strong for about 10 to 15 minutes, even under a heavy load then starts to lose power, and it will eventually die. If I leave the throttle wide open with no load on the engine it will "surge", going from 2000+ rpm to almost killing, then it will surge up again, and repaet. It will surge like that and falter, and usually it will eventually die even with the throttle wide open. It was always restart, but it goes right into the surge problem. When it goes into the "faltering" or surge symtoms, it makes almost no power whatsoever. I can't even get the tractor to move in low gear without killing the engine. Here is the crazy part....if the tractors sits several hours or over night, it starts right up and I get a new 10 to 15 minutes of running time with full power and no problems.
I have ben thinking that once it gets hot, I have a head gasket issue or loss of compression. But I have no water in the oil, or oil in the coolant. There does seems to be some blow-by out the breather tube, but some blow-by is normal. I hve pulled the exaust to check for blockage and my intake system is clean with a freash filter. It is not running hot.
I hope this is not my injection or fuel pump going bad. I know there are some smart Yanmar guys out there....please help. My email is jimpflepsen@yahoo.com or post your thoughts. Thanks in advance and thanks Tractorbynet for the space.
I have ben thinking that once it gets hot, I have a head gasket issue or loss of compression. But I have no water in the oil, or oil in the coolant. There does seems to be some blow-by out the breather tube, but some blow-by is normal. I hve pulled the exaust to check for blockage and my intake system is clean with a freash filter. It is not running hot.
I hope this is not my injection or fuel pump going bad. I know there are some smart Yanmar guys out there....please help. My email is jimpflepsen@yahoo.com or post your thoughts. Thanks in advance and thanks Tractorbynet for the space.