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Caterpillar Pony Motor

Fat Dan

Well-Known Member
Joined
Jan 14, 2020
Messages
175
Location
Alaska
Price is better at $650 to $750 for 24v starter, now looking for glow-plugs pre-cups and 24v generator. Might have a line on a flywheel and ring gear locally - locally is a relative term Fairbanks is 365mi from here. round trip 12 hrs. and this time of year -20*F is warm in Fairbanks
 

Old Magnet

Senior Member
Joined
May 11, 2010
Messages
2,003
Location
Corralitos, California
You will need 1S1970 (one piece) chambers
2H3088 o-ring chamber seals
6F8061 injection line retainer nuts (splined type) to clear glow plugs (requires special splined socket)
3H2033 glow plugs (24v only)
Also will require shim pack (various size chamber seat washers) to index glow plug location.
Splined socket is a 8S2243
Chamber removal/installation tool is a 5F8353
Try Regal for best prices
 
Last edited:

Fat Dan

Well-Known Member
Joined
Jan 14, 2020
Messages
175
Location
Alaska
You will need 1S1970 (one piece) chambers
2H3088 o-ring chamber seals
6F8061 injection line retainer nuts (splined type) to clear glow plugs (requires special splined socket)
3H2033 glow plugs (24v only)
Also will require shim pack (various size chamber seat washers) to index glow plug location.
Splined socket is a 8S2243
Chamber removal/installation tool is a 5F8353
Try Regal for best prices
Holey Cow!!! Old Magnet you are the guru. Thanks
O' man 24v direct start with all the amenities AND a 6v electric start pony system - I'd have more starters, batteries, cables and generators than Carter's got pills. If I'd do that I'd need to keep the two different voltage systems apart. The son of a gun already weighs 18,000lbs n'some so what if it has an extra 400lbs of starters n stuff, I doubt it will notice at all.
Hahhhhhaaaaaaaaaaaaa ::):rolleyes::eek::(:mad: gambit of emotions.
Chamber removal/installation tool is a 5F8353
eBay Price: US $5.50
Shipping: $35.26 Standard Shipping OMG
Item location: Land O' Lakes, Florida, United States
 

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
I worked at a sand and gravel plant back in the 70s and they had a 988 A wheel loader with a pony motor all controls where in the cab. I thought this was unusual

Not at all unusual. The pony's pretty much all went to in seat controls by the time there was an option of pony or direct electric start. I believe it was an effort to avoid deaths by machines starting and running over the operator on the track starting the main when warm after lunch. Seems putting it in neutral took to long when it was grub time to some. Read about this in a old safety brochure.
 

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
I was working on the AK Pipeline at pump station 3 south of Franklin Bluffs in 77 and there were many one off Frankensteined machines out there. I couldn't tell you if pony motors were an option on the 988's but it is amazing what people can do with a paperclip, a roll of Duct tape and an old piece of iron.

Not sure of what year but pony options extended into the 1960s. They remained popular in the cold and rural climates.
 

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
Does anyone with electric start conversion spin the engine with the compression released to build up oil pressure before adding compression. Been told it is most important if they have sat for a few weeks or more. This has been highly touted as one of the reasons the old engines are still going after 80 years and more. Just curious.
 

Old Magnet

Senior Member
Joined
May 11, 2010
Messages
2,003
Location
Corralitos, California
Holey Cow!!! Old Magnet you are the guru. Thanks
O' man 24v direct start with all the amenities AND a 6v electric start pony system - I'd have more starters, batteries, cables and generators than Carter's got pills. If I'd do that I'd need to keep the two different voltage systems apart. The son of a gun already weighs 18,000lbs n'some so what if it has an extra 400lbs of starters n stuff, I doubt it will notice at all.
Hahhhhhaaaaaaaaaaaaa ::):rolleyes::eek::(:mad: gambit of emotions.
Chamber removal/installation tool is a 5F8353
eBay Price: US $5.50
Shipping: $35.26 Standard Shipping OMG
Item location: Land O' Lakes, Florida, United States
Doesn't USPS Flat Rate Shipping apply there?
 

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
Couple of versions out there. Either a built in gear pump on the back end of the starter switched so that you can run the starter/pump without engaging the drive until you build oil pressure or separate motor driven pump to build pressure then engage starter.
Here's one on the back end of a 42MT
https://www.ebay.com/i/372728296428?chn=ps&norover=1&

Interesting. I had never seen one before. Always neat to learn. Is there any new models of engines that use a pre-lube system as standard operating procedure that you are aware of. My 1971 KW with a 335 Cummins has a metal tag on the dash that says to "keep engine compression released on cranking until oil pressure shows on gauge". Not sure if it is original.
 

Old Magnet

Senior Member
Joined
May 11, 2010
Messages
2,003
Location
Corralitos, California
That seems like just crank the engine with compression released to build oil pressure, not a pre-lube arrangement.
I don't know of a list of units that come with pre-lube starters. They more than likely would be by request, more likely on larger engines and common on emergency stand-bye generator sets.
 

old-iron-habit

Senior Member
Joined
Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
Occupation
Retired Cons't. Supt./Hospitals
That seems like just crank the engine with compression released to build oil pressure, not a pre-lube arrangement.
I don't know of a list of units that come with pre-lube starters. They more than likely would be by request, more likely on larger engines and common on emergency stand-bye generator sets.

It for sure is not a pre-lube. I just thought it interesting that it has the reminder on the dash. Someone thought it was important a number of years ago to pre-lube on starting.
 

Tugger2

Senior Member
Joined
Mar 22, 2018
Messages
1,366
Location
British Columbia
I have the best of both worlds on my 22B . It has a D318 with pony start and a 24 volt electric starter. Just no glow plugs. Ill start it cold with the pony ,once its warm i can use the 24v anytime i shut down or god forbid i stall it( nothing like stalling the pony start D2 i used to have while pushing a burn pile) It works well for me , i can start up ok anytime in the summer with the 24V.
 
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