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post #16 of 63 Old 09-21-2006, 08:15 PM Thread Starter
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Re: Cletrac HG Stuff

This is the first time this has happened. I had to use duct to to get a good seal to check the compression. The spark plugs holes were 7/8"


These are brand new plugs 1-4 left to right.

The compression read 120 psi on all cylinder except number 2 it read 90 psi.

I poured some oil into number 2 and it still read 90 psi.
That narrows it down to:
Bad Valve -- Very possible
Head Gasket -- Very possible
Cracked head -- Very possible
Crack sleeve -- maybe but not likely
Crack Ring -- No psi remain the same after oil was added. (psi would have gone up)
Hole in the piston -- not likely but possible reading on compression at 90 psi is very and it was consistant.
Bent connect rod -- not likely engine runs smooth no knocks
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post #17 of 63 Old 09-21-2006, 08:21 PM Thread Starter
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Re: Cletrac HG Stuff

Bear what is you opinion?

The number 2 spark plug has carbon junk on it

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post #18 of 63 Old 09-21-2006, 08:29 PM
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Re: Cletrac HG Stuff

Exhaust valve, and /or head gasket on that cylinder?


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post #19 of 63 Old 09-21-2006, 08:44 PM Thread Starter
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Re: Cletrac HG Stuff

Quote:
Originally Posted by glenn27
Exhaust valve, and /or head gasket on that cylinder?

I am going to pull the head tomorrow, but there is a history of cracked head on this engine!

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

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post #20 of 63 Old 09-21-2006, 08:47 PM
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Re: Cletrac HG Stuff

Is there a ready-made source for replacements?


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post #21 of 63 Old 09-21-2006, 08:50 PM Thread Starter
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Re: Cletrac HG Stuff

Quote:
Originally Posted by glenn27
Is there a ready-made source for replacements?
New and used part are available at http://www.olivercletrac.com/

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong, because someday in life you will have been all of these.

Lose money while restoring a Farmall F-12 let me show you how!

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post #22 of 63 Old 09-22-2006, 04:21 AM
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Re: Cletrac HG Stuff

does it burn any oil, antifreeze or have you run it long enough to tell looks like #3 has some deposits on it to possible head gasket between the 2 do you have a rad pressure tester if so hook it up and take it for a drive hook a load to it or use brakes to work engine and see how fast press raises in the rad
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post #23 of 63 Old 09-22-2006, 05:27 AM
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Re: Cletrac HG Stuff

Ing nice and strong? Maybe its the picture, but they all look pretty oily to me. Kinda like what my N used to produce.

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post #24 of 63 Old 09-22-2006, 05:51 AM
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Re: Cletrac HG Stuff

This tractor is an OC3 ... What did the OC stand for???
Oliver Cletrac ???


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post #25 of 63 Old 09-22-2006, 07:49 AM Thread Starter
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Re: Cletrac HG Stuff

Quote:
Originally Posted by bear
does it burn any oil, antifreeze or have you run it long enough to tell looks like #3 has some deposits on it to possible head gasket between the 2 do you have a rad pressure tester if so hook it up and take it for a drive hook a load to it or use brakes to work engine and see how fast press raises in the rad
Its a non-pressure radiator system the wounderful Thermo-sophon system, but it has field installation kit water pump. The radiator is still a no pressure.

I do have a radiator pressure tester that I can used to verify the system is water tight. I can use that to check and see if any air being in pump cooling system with spark plug out just kicking the engine.

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong, because someday in life you will have been all of these.

Lose money while restoring a Farmall F-12 let me show you how!

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post #26 of 63 Old 09-22-2006, 09:29 AM Thread Starter
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Re: Cletrac HG Stuff

Quote:
Originally Posted by bear
does it burn any oil, antifreeze or have you run it long enough to tell looks like #3 has some deposits on it to possible head gasket between the 2 do you have a rad pressure tester if so hook it up and take it for a drive hook a load to it or use brakes to work engine and see how fast press raises in the rad
It’s a non-pressure radiator system the wonderful Thermo-siphon system, but it has field installation kit water pump. The radiator is still a no pressure.

I do have a radiator pressure tester that I can used to verify the system is water tight. I can use that to check and see if any air being pump into cooling system with spark plug out just kicking the engine.

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong, because someday in life you will have been all of these.

Lose money while restoring a Farmall F-12 let me show you how!

CLICK HERE
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post #27 of 63 Old 09-22-2006, 09:44 AM
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Re: Cletrac HG Stuff

you'll need the spark plug in to see if it pumping air into the cooling system i just reread your post and #2 and #3 have different compression so its not likely the gasket is blown between them
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post #28 of 63 Old 09-22-2006, 09:59 AM Thread Starter
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Re: Cletrac HG Stuff

I can use stethoscope listen to air being pushed in, but its windy here today, so probably anything through it. Number 3 has good compression still. All will try all kind methods

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong, because someday in life you will have been all of these.

Lose money while restoring a Farmall F-12 let me show you how!

CLICK HERE
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post #29 of 63 Old 09-22-2006, 10:01 AM Thread Starter
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Re: Cletrac HG Stuff

Quote:
Originally Posted by Kbeitz
This tractor is an OC3 ... What did the OC stand for???
Oliver Cletrac ???
Oliver Cletrac at first then couple of years later morphed into Oliver Crawlers

Celebrating 41 years of a Drug-Free Elvis! Adventures with Harry Ferguson!

How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving, and tolerant of the weak and the strong, because someday in life you will have been all of these.

Lose money while restoring a Farmall F-12 let me show you how!

CLICK HERE
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post #30 of 63 Old 09-22-2006, 11:48 AM
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Re: Cletrac HG Stuff

I thought of you Wingnut, a couple of weeks ago at the James Valley show in Andover, SD...

This one's for you!


Cletrac's owned by the Anderson family in Andover.

Mark

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