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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2011-08-31          180135

I have a 2008 JD 110 tlb. I'm having coolant problems. tractor has a yanmar engine, model 4TNV88.

It will run ok for a few minutes, then start pushing coolant out the reservoir. With the radiator cap removed, I can see air bubbles coming out.

I had the cylinder head machined and reinstalled. that seemed to work for a few hours, then same problem.

I installed a new cylinder head no change.

If anyone has an idea, I would greatly appreciate your input.


Thanks!


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John Deere 110 Tractor Air Pressure in Cooling System

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auerbach
Join Date: Sep 2007
Posts: 2168 West of Toronto
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2011-09-01          180145

Did the shop use a new gasket when the head was put back? ....

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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2011-09-01          180146

THEY USED A NEW HEAD GASKET ON THE MACHINED OLD HEAD, AND
ON THE NEW CYLINDER HEAD.
THANKS FOR RESPONDING. ....

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John Deere 110 Tractor Air Pressure in Cooling System

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auerbach
Join Date: Sep 2007
Posts: 2168 West of Toronto
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2011-09-01          180150

Then (assuming they checked the block surface and they properly torqued new headbolts over the right gasket), gotta be something in the block. Too bad -- that's a fine engine in an excellent tractor, but I think they'll have to tear into it again to see what they missed. Could the coolant ever have frozen? ....

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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2011-09-01          180153

THANKS FOR YOUR THOUGHTS. ....

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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2011-09-01          180154

THE TRACTOR CAME FROM THE SOUTH, THOUGH I DON'T KNOW FOR
SURE IF COOLANT HAD EVER FROZEN.
THANKS: ....

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John Deere 110 Tractor Air Pressure in Cooling System

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candoarms
Join Date: Mar 2007
Posts: 1932 North Dakota
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2011-09-01          180155

Xb30546,

There's an easy and inexpensive way to check things over before tearing the engine down again.

Perform a compression check on each cylinder. A compression tester gauge is installed in the glow plug port of each cylinder....one cylinder at a time.

The engine is then cranked over about five full revolutions per cylinder. An average of the 5 separate compression readings is then used to determine the final value. (Yanmar's specifications for this test may vary slightly from those I have described above.)

After the compression test is completed, you'll then know whether or not you have a bad cylinder. You'll also know exactly which cylinder is causing the problem.......though you won't be able to tell whether the problem is with the block, or the head.

I hope this helps.

Joel

....

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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2011-09-02          180160

THANK YOU JOEL. WE'LL TRY THIS. ....

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John Deere 110 Tractor Air Pressure in Cooling System

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Skyview
Join Date: Aug 2012
Posts: 3 Pennsylvania
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2012-08-06          184582

I too have a JD 110 loader backhoe with to same problem. I first just replaced the head gasket and now got the head mag tested and shaved and it is still the same. I am curious if you got yours fixed and if you would share the remedy? ....

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John Deere 110 Tractor Air Pressure in Cooling System

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xb30546
Join Date: Aug 2011
Posts: 7 KENTUCKY
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2012-08-07          184585

I HAD TO STRIP THE BLOCK, AND TAKE BOTH THE BLOCK & HEAD TO BE MACHINED.

THIS DID THE TRICK. ....

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John Deere 110 Tractor Air Pressure in Cooling System

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Skyview
Join Date: Aug 2012
Posts: 3 Pennsylvania
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2012-08-07          184586

That is not really what I wanted to hear - but thanks, You have been a big help. Ed ....

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