Diesel hard to start, boggs down,quits running

[Egon]

Lose any radiator fluid?

Could be leaking head gasket if it's running hot.???

 

[LouNY]

Back at it.....

Loosened retune line, didn't see "gunk" unfortunately didn't have enough room to remove / inspect check ball valve. After to usual slow starting (yes I am going to pull starter have it tested / replaced if necessary) the tractor ran for 45 minutes in idle and mid / full throttle until I shut it down. Next day, same result only I hooked up flail mower and cut for about 30 minutes. Did not loose power but boy it seems to run hot. Hotter than before...at least it feels so.
I have notices 2 new leaks from the IP..not pouring at but definitely dripping visibly. When I went to shut it off..gave one last "big burp" of white smoke like post detonation. Any thoughts or am I just looking too hard and missing the main issue in front of me. I really liked this tractor and can't afford another now. was )hard to start) but ran well once started

Was it running with the return line off or loosened? or had you reinstalled it?
Can you get the returnoff enough to blow thru it to the tank?
If it had been running rich from to much fuel, it could be hotter with a leaner fuel mix.

 

[texstrk426]

One possibility might be a fuel tank cap that is stopped up. It would allow the tractor to run a while until it developed a vacuum in the tank and then stop. It would not start again until the vacuum bleeds of or the cap is removed to release the vacuum. It might need fuel system bled again after an episode like this.

 

[Egon]

Best be looking at that white burp when shutting off. Gycol ???

 

[crazyhorsemd]

Best be looking at that white burp when shutting off. Gycol ???

Thanks All, down but not out..........
No loss of coolant, level stable
Fuel cap well vented
IP does leak a drop every 10 sec's or so....Do plan ( this fall) to replace
Tractor now starts and at first sounds like the old tractor I knew
After 20 minutes, at mid idle though, starts to blow a little smoke out vent tube and, even my wife agrees, that it sounds louder
I heard a fairly loud knocking yesterday, sounds like the upper engine...? Valves, Tappets, Still seems to maintain power when I throttle up but the longer it runs the more smoke from the vent tube. Checked for blow by, oil cap not blowing off BUT I didn't plug the vent tube.
NOW stay with me, could the IP be the cause of smoking, running hot.(too much fuel) ..have not run it with the return line off...guess I could try

Thanks as always