Engine running rough

olthumpa

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L275
May 25, 2011
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Maine
HOLLY CRAP:eek: what happened to this post, things added and deleted all by itself. Try to fix again, don't know if this says what I want it to but here it is.!

-20 F at 6am outside. +20 in the garage. No problem that is what space heaters are for . . . . . when they run. The electric eye thought it was time to quit working (new one on order) the 100,000btu was out so I lit the 20,000. Took 3 hrs to get up to 40F, what can I say I don't l like to work in the cold if I don't have to.

After I adjusted the valves several days ago the tractor ran better but with the last storm it complained allot again; harder than normal to start, missing on one cylinder, try to increase rpm's and nothing happens until it warmed up some; a couple min. After warming up the engine still did not sound right at lower rpms. At 40F inside the garage it started like it used to do.

Today I checked the glow plugs, they are about 3 years old, and the compression. The plugs tested OK with a zero ohms reading on each. The compression tested: 440psi on the front cylinder, 440psi on the middle cylinder, 480psi on the back cylinder, (repeated several times on each cylinder). Compression (PSI) standard: 450, Compression Lower Limit: 325. There was some oily residue on the inside of the intake manifold, not allot but some. My thought's are that I need to replace the injectors.

When I removed the hydro filter to connect the compression tester to the rear cylinder, I found a small part of a gasket and a SMALL piece of metal that what looked like part of a gear. I am hoping that they are pieces that somehow were missed when I cleaned out the inside of the tranny, after I replaced the rear diff, last year!

Any and all thoughts and opinions welcome.

Thanks in advance.

(adding pic's is becoming a royal PITA!)
 

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ShaunBlake

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(adding pic's is becoming a royal PITA!)
I made my life better by creating an OTT album and putting pics there; they can more easily be attached. I can't tell, but suspect you're doing the same, though you don't seem to have any albums, so this tip may help.

Sorry, don't have any info on the hard start, the oily residue (except the oil seems to have lost a lot of its focus, perhaps that's why it has hung around?) or the piece of a part. Your suspicion jibes with what my guess. :confused:
 

olthumpa

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L275
May 25, 2011
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Maine
I made my life better by creating an OTT album and putting pics there; they can more easily be attached. I can't tell, but suspect you're doing the same, though you don't seem to have any albums, so this tip may help.
Never had a problem attaching pics before a couple weeks ago. Now, it takes me several tries to attach them.
 

North Idaho Wolfman

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With the compression #'s you list I would say Valve seals, for the oil might be needed, but with it running and starting hard and rough, yea new or rebuild the injectors is what is needed. ;)