pony motor has locked up ideas please

Hi,
am confused by your question on HP of Wisconsin Pony engine. Are you contemplating a Wisconsin conversion or does it already have one ?
The usual pony for one of these Diesels--assuming J or U series Serial Number-- is a Caterpillar built twin cylinder horizontally opposed water cooled engine mounted across the top of the Diesel Flywheel Housing. The Cat pony engine develops 10HP @ 3,000 RPM.

If you have a Wisconsin conversion then some pix may help--sorry, I cannot post pix at present to show you what the Cat pony looks like.
Cheers,
Eddie B.

[QUOTE=edb;227402]Hi,
am confused by your question on HP of Wisconsin Pony engine. Are you contemplating a Wisconsin conversion or does it already have one ?
The usual pony for one of these Diesels--assuming J or U series Serial Number-- is a Caterpillar built twin cylinder horizontally opposed water cooled engine mounted across the top of the Diesel Flywheel Housing. The Cat pony engine develops 10HP @ 3,000 RPM.

If you have a Wisconsin conversion then some pix may help--sorry, I cannot post pix at present to show you what the Cat pony looks like.
Cheers,
Eddie B.[/QUOTE
we were told by the bloke we got her from they were a wisconsin design and had no reason to doubt him and from experience with other antique motors we know a lot of badge engineering went on ronaldson bros & tippet sold their type ''n'' engine under 30 different names everything from sunshine(H.V.McKay) to international harvester and they made wisconsin engines under licence during the ww2

There's two possible pony motors that could be on a D4 tractor. If you look at a recent post called Buzz bomb pony video, you will at least get the sound of the later type (post 1959). Those ponies fit into a hole in flywheel housing that can be adapted to an electric starter quite simply.

There could be a place to install a starter on late model (1956-1959?????) D4. Earlier models can be modified to install one. OldMagnet has the dimensions and many have done it, some even with the engine still in the tractor!. Look below pony pinion for a triangular shaped 3 bolt cover or the flat boss in the cast housing where the starter mounting hole can be bored.

Or you could fix the pony. Common failure mode is to let oil get diluted with gasoline and then run it, taking out the rod bearings and resulting in sudden, catastrophic failure. Not withstanding your attention to maintenance, they are still all old and stuff breaks. There's still lots of stuff available to fix a pony, but it won't be cheap by the time you do it right.

Don't ignore Hector's advice about checking the magneto. They have been known to break the magneto shaft and I think I have heard of breaking a gear too. You won't be out any extra labor to take a look in there before you do anything else.

As always, a ser# and a few pics will help get to the bottom of most situations more quickly and accurately.

Read this all the other day , By never twigged you were so close .
I am up near Gladstone . PM me your Phone number .As May be able to help with tracking down a Pilot motor in your back yard so to speak .

As always, a ser# and a few pics will help get to the bottom of most situations more quickly and accurately.

Read this all the other day , By never twigged you were so close .
I am up near Gladstone . PM me your Phone number .As May be able to help with tracking down a Pilot motor in your back yard so to speak .

[quote="ianoz"]Read this all the other day , By never twigged you were so close .
I am up near Gladstone . PM me your Phone number .As May be able to help with tracking down a Pilot motor in your back yard so to speak .[/quote]

ian clear your pm folder its full and i cant pm you