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Pony Removal from a HT4 D4

Pony Removal from a HT4 D4

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Cobalt Kid
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Gents,

Does the HT4 lifting assembly have to come off in order for the pony motor to be removed ? Also to change the front bearing on the pony, do you have to pull the crank, or can you change it like the flywheel side, by just removing the front cover and punching out the pin.

Cobalt Kid
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Mon, Oct 31, 2011 11:59 PM
gemdozer
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Yes you just need to remove the puley and the front cover for changing the front main bearing
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Tue, Nov 1, 2011 12:06 AM
Cobalt Kid
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Reply to gemdozer:
Yes you just need to remove the puley and the front cover for changing the front main bearing
Hey Hector, how have you been?


I might have confused you by saying the front bearing. I meant the one that faces the diesel engine with the crank gear on it. Also can I slide the pony engine up and out, or do I have to remove the frame for the lifting assembly with all the cylinders and arms?

Randy
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Tue, Nov 1, 2011 12:35 AM
D4guy
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Reply to Cobalt Kid:
Hey Hector, how have you been?


I might have confused you by saying the front bearing. I meant the one that faces the diesel engine with the crank gear on it. Also can I slide the pony engine up and out, or do I have to remove the frame for the lifting assembly with all the cylinders and arms?

Randy
Hi Cobalt Kid,
I have an older style HT4 and successfully removed the pony. There is enough room below the lift crossover frame to hoist the little thing back and out. You must first remove the dash panel and all that other stuff. Leaving the hoses attached, you can tip back the hydraulic crossover manifold to give clearance for the pony to escape. There is a mounting stud in the center front that is almost impossible to see and remove, but it is there.

Good luck.

D4guy
1955 D4 Traxcavator, 1926 Model T Roadster, 1930 Model A Tudor, 1940 Diamond T 201, 1954 JD 40 dozer
www.mervbergman.net
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Tue, Nov 1, 2011 8:40 PM
gemdozer
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Reply to D4guy:
Hi Cobalt Kid,
I have an older style HT4 and successfully removed the pony. There is enough room below the lift crossover frame to hoist the little thing back and out. You must first remove the dash panel and all that other stuff. Leaving the hoses attached, you can tip back the hydraulic crossover manifold to give clearance for the pony to escape. There is a mounting stud in the center front that is almost impossible to see and remove, but it is there.

Good luck.

D4guy
You need to removed the poney motor , the top manifold, the connecting rods ,the heads, the crankshaft for changing the bearing in the back poney and should not be easy with the loader hoses.
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Wed, Nov 2, 2011 6:47 AM
Cobalt Kid
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Reply to gemdozer:
You need to removed the poney motor , the top manifold, the connecting rods ,the heads, the crankshaft for changing the bearing in the back poney and should not be easy with the loader hoses.
Thank you both D4guy and Gemdozer,

This answers both my questions. I can remove it and I also have to remove the crank to get at the bearing.
Wish me luck, I have acquired a 1955 HT4 with a cracked pony block and has been parked for at least 40 years.
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Wed, Nov 2, 2011 7:51 PM
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