Farmall 560 good news. And some not so good.

My 560 diesel is finally running. That was the good news. The
bad news is I think I either have a stuck lifter or valve. When
it is running, it sounds like an air compressor intermittently,
but at a steady pace. Pulled this thing out of the weeds.
Changed the oil, and it was like chocolate syrup. No water
though. That old 282 just purrs. I guess I just want someone
to tell me this could clear up on it's own. But all feedback is
welcome. Thanks in advance. A.P.
 
have you added anything to the oil, like atf or mmo.. or seafoam, to help clean things up?

if it was like tar in there.. I might run some high detergent flush thru it.. a few times before worrying about something being stuck just yet.

then I might chip for some syn diesel..
 
I intend to flush engine again. When I noticed the constinstincy of the oil I drained it and poured a couple of gallons of gas through it. I will get some seafoam or marvel and run it for a while and see If it clears up before I pull the head.
 
You hear air escaping while cranking? Sounds like foreign material under the valve. If you pulled it out of the weeds, animals may have been storing food in the exhaust and it fell in there when the engine was first turned over. If the air intake system was open, there's probably a mouse nest in the manifold, and got sucked down in there. Or simply a valve was in the open position all this time, and the face is rusty. Any one of these problems would clear up with 30-45min. of idling time. If not, pull the valve cover and check valve clearance.
 
My FIRST "guess" is you have a valve stem sticking intermitantly??? Probably on the valve that sat OPEN while its rest out in the weeds? IDK?

Get the hood off,pull the valve cover,fire it up(LOW IDLE!!!!) and take a squit can filled with trans fluid/light oil and start shooting in between the valve springs right on the stems.You might EVEN be able to SEE which valve is hanging up while it is running??
 
The two middle exhaust valves sit beside each other in the head sometimes they burn out between them will make that noise.
 

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