ACMOC
Login
ACMOC
D24U Pony Motor issues

D24U Pony Motor issues

Showing 1 to 10 of 15 results
1
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Evening, I picked up a D24U and got it running after a little work and used it for a day. Went back a week later and I couldn't get the pony to run without the choke all the way out. I pulled the carb and cleaned it out along with all the jets. I put it back on today and it runs without the choke being out. The new issue is the pony dies after I move the decompression lever from start to run.  Anyone seen this and was it a governor issue?  
Please log in or create an account to join the conversation.
Mon, Feb 7, 2022 6:58 AM
neil
Offline
Moderator
Admin
Send a private message to neil
Posts: 6,974
Thank you received: 20
I've seen this but from a partly-blocked main jet. If the throttle control stop is on the wrong side of the throttle stud, the governor can't control the throttle properly. Easy to reassemble it wrong. Check governor belt is in place and properly tensioned, check that when the throttle control is moved to full, that the governor control rod is free to open and close the throttle by hand. The throttle control when all the way out, pulls the throttle closed, against the governor spring.
Please log in or create an account to join the conversation.
Mon, Feb 7, 2022 7:37 AM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to neil:
I've seen this but from a partly-blocked main jet. If the throttle control stop is on the wrong side of the throttle stud, the governor can't control the throttle properly. Easy to reassemble it wrong. Check governor belt is in place and properly tensioned, check that when the throttle control is moved to full, that the governor control rod is free to open and close the throttle by hand. The throttle control when all the way out, pulls the throttle closed, against the governor spring.
If I push the throttle to full, I can move the governor by hand make the engine increase RPM. I will go back and check belt tension. Thanks

Mike
Please log in or create an account to join the conversation.
Mon, Feb 7, 2022 9:42 AM
neil
Offline
Moderator
Admin
Send a private message to neil
Posts: 6,974
Thank you received: 20
Reply to mjspicer1980:
If I push the throttle to full, I can move the governor by hand make the engine increase RPM. I will go back and check belt tension. Thanks

Mike
That sounds good but also check when it's at partial throttle - the throttle tang should prevent the governor from opening the throttle right up. If it does that, then it's in the right relationship
Please log in or create an account to join the conversation.
Mon, Feb 7, 2022 10:28 PM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to neil:
That sounds good but also check when it's at partial throttle - the throttle tang should prevent the governor from opening the throttle right up. If it does that, then it's in the right relationship
Figured I would share some pics of my toys
 [attachment=66713]received_316608100516979.jpeg[/attachment]
 [attachment=66712]b794f315b7d1daa9e3a6b452f2518849[/attachment]
Attachment
Attachment
Please log in or create an account to join the conversation.
Tue, Feb 8, 2022 3:45 AM
Kurt Bangert
Offline
Member
Admin
Send a private message to Kurt Bangert
Posts: 496
Thank you received: 0
Reply to mjspicer1980:
Figured I would share some pics of my toys
 [attachment=66713]received_316608100516979.jpeg[/attachment]
 [attachment=66712]b794f315b7d1daa9e3a6b452f2518849[/attachment]
Attachment
Attachment
Thanks for posting, love the photos. You should tie the machine down better, looks like the engine blew off! 😉
Please log in or create an account to join the conversation.
Tue, Feb 8, 2022 4:45 AM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to Kurt Bangert:
Thanks for posting, love the photos. You should tie the machine down better, looks like the engine blew off! 😉
Haha. That's funny. I didn't think about that. Good thing it's 2 different dozers.
Please log in or create an account to join the conversation.
Tue, Feb 8, 2022 5:04 AM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to mjspicer1980:
If I push the throttle to full, I can move the governor by hand make the engine increase RPM. I will go back and check belt tension. Thanks

Mike
Okay. The pony fouled the plugs. Main engine still won't start. I gave a squirt of ether and it started and then died. Watched squatches videos and seen him get a 20 yo d2 running. I popped the injector pump Inspection cover off and turned the engine over by hand. The rear injector lifter is sized in the up position and the fuel control rod won't actuate back and forth.

Who knows about injector pumps.
Please log in or create an account to join the conversation.
Sun, Feb 13, 2022 11:48 PM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to mjspicer1980:
Okay. The pony fouled the plugs. Main engine still won't start. I gave a squirt of ether and it started and then died. Watched squatches videos and seen him get a 20 yo d2 running. I popped the injector pump Inspection cover off and turned the engine over by hand. The rear injector lifter is sized in the up position and the fuel control rod won't actuate back and forth.

Who knows about injector pumps.
Pic of lifters
Attachment
Please log in or create an account to join the conversation.
Sun, Feb 13, 2022 11:51 PM
dpendzic
Offline
Send a private message to dpendzic
Posts: 2,763
Thank you received: 1
Reply to mjspicer1980:
Pic of lifters
Attachment
Start spraying the injector and control rod with loose juice--let it set a couple of days and then gently pry them to get them to move and then work back and forth
Please log in or create an account to join the conversation.
Mon, Feb 14, 2022 2:32 AM
mjspicer1980
Topic Author
Offline
Send a private message to mjspicer1980
Posts: 16
Thank you received: 0
Reply to dpendzic:
Start spraying the injector and control rod with loose juice--let it set a couple of days and then gently pry them to get them to move and then work back and forth
Any particular "loose juice"? 
Please log in or create an account to join the conversation.
Mon, Feb 14, 2022 5:08 AM
Showing 1 to 10 of 15 results
1
YouTube Video Placeholder

Follow Us on Social Media

Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.

Upcoming Events

Newby Hall Tractor Fest

Chapter Two

| Newby Hall, Ripon, Noth Yorkshire, HG4 5AJ

High Weald Steam Working Weekend

Chapter Two

| Freshfield Farm, Sloop Lane, Scaynes Hill RH17 7NP UK

Sibbertoft Annual Muck Shifting Weekend

Chapter Two

| Avalanche adventure, Welford Rd, Sibbertoft LE16 9UJ, UK

Cromford Steam Rally

Chapter Two

| Highacres Farm, Dewey Lane, Brackenfield, Derbyshire DE55 6DB, UK
View Calendar
ACMOC

Antique Caterpillar
Machinery Owners Club

1115 Madison St NE # 1117
Salem, OR 97301

[email protected]

Terms & Privacy
Website developed by AdCo

Testimonials

"I became a member recently because the wealth of knowledge here is priceless." 
-Chris R

Join Today!