ACMOC
Login
ACMOC
D7 17A Pony clutch won"t engage

D7 17A Pony clutch won"t engage

Showing 1 to 6 of 6 results
mineoladavid
Topic Author
Offline
Send a private message to mineoladavid
Posts: 13
Thank you received: 0
My junky D7 17A pony motor clutch lever refuses to move. Last start up, the pony motor would not spin the big motor in high. I shifted to low for a few revs and then to high. It spun and started the big motor but I had to hold the clutch engaged as usual. Yesterday, I tried to start up but could not get the pony motor clutch to move. It seems stuck mid point. I pulled the inspection plate and gear shift handle plate. By placing the gear shift between low and high, I can freely spin the gear train that includes the part inside the flywheel, the latches thru the housing into the gear compartment. I can get about 3/8 of an inch movement of the throw out bearing before it stops firm. Still no movement on the clutch lever. The attachment is what I see thru the inspection plate. It is not what I think I should see according to the book. What am I missing?

Par for the course, I only need two more starts to finish clearing my land. Is it time to rig the A-frame and yank that sucker or do I have other options?

[attachment=45955]IMG_0828.jpg[/attachment]
Attachment
Please log in or create an account to join the conversation.
Wed, Dec 6, 2017 12:57 AM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,696
Thank you received: 18
Desn't appear to be anything wrong with the clutch (assuming it is adjusted correctly).
Problem is more likely lower down with the pinion engagement rod and/or the pinion. If the latch mechanism is working correctly you should not have to hold the lever to keep it engaged.

There is a four bolt cover plate on the bottom of the clutch housing where you can check to see if the engagement rod travel is working properly.

Do you know the clutch adjustment procedure?
Please log in or create an account to join the conversation.
Wed, Dec 6, 2017 1:32 AM
gemdozer
Offline
Member
Send a private message to gemdozer
Posts: 1,468
Thank you received: 11
Reply to Old Magnet:
Desn't appear to be anything wrong with the clutch (assuming it is adjusted correctly).
Problem is more likely lower down with the pinion engagement rod and/or the pinion. If the latch mechanism is working correctly you should not have to hold the lever to keep it engaged.

There is a four bolt cover plate on the bottom of the clutch housing where you can check to see if the engagement rod travel is working properly.

Do you know the clutch adjustment procedure?
It look like the fork ben modify and could have a roller out off the collar and if you have to hold the lever to keep it angaged you need to adjusted the spring in the gearing compartiment
Please log in or create an account to join the conversation.
Wed, Dec 6, 2017 2:57 AM
mineoladavid
Topic Author
Offline
Send a private message to mineoladavid
Posts: 13
Thank you received: 0
Reply to gemdozer:
It look like the fork ben modify and could have a roller out off the collar and if you have to hold the lever to keep it angaged you need to adjusted the spring in the gearing compartiment
I agree that the clutch needs adjustment and has for some time. My problem starts with step 2 of the adjustment procedure.

2. Engage the pinion and clutch and rotate the starting engine----

I can't get the lever to move to engage the pinion and clutch. I have tried prying various places and can't get any movement of the clutch engagement lever. Nothing seems to work. Am I missing something?


Thanks for your response, any suggestion is appreciated.
Please log in or create an account to join the conversation.
Wed, Dec 6, 2017 11:10 PM
Old Magnet
Offline
Send a private message to Old Magnet
Posts: 16,696
Thank you received: 18
Reply to mineoladavid:
I agree that the clutch needs adjustment and has for some time. My problem starts with step 2 of the adjustment procedure.

2. Engage the pinion and clutch and rotate the starting engine----

I can't get the lever to move to engage the pinion and clutch. I have tried prying various places and can't get any movement of the clutch engagement lever. Nothing seems to work. Am I missing something?


Thanks for your response, any suggestion is appreciated.
You need to determine whether it is the clutch function or pinion engagement function that is causing the problem.
By removing the block and nut in the control lever you can separate the operating levers. Also as I mentioned before there is a cover plate on the bottom of the clutch housing that gives access to the pinion engagement rod.

The upper lever controls pinion engagement, the lower lever controls the clutch.
Please log in or create an account to join the conversation.
Wed, Dec 6, 2017 11:50 PM
gemdozer
Offline
Member
Send a private message to gemdozer
Posts: 1,468
Thank you received: 11
Reply to Old Magnet:
You need to determine whether it is the clutch function or pinion engagement function that is causing the problem.
By removing the block and nut in the control lever you can separate the operating levers. Also as I mentioned before there is a cover plate on the bottom of the clutch housing that gives access to the pinion engagement rod.

The upper lever controls pinion engagement, the lower lever controls the clutch.
Did you try to adjusted or desajusted the cluch maybe the speder pine is broken and the spider is out off cluch shaft tread or the fork block is out off the collar and jam on side collar
Please log in or create an account to join the conversation.
Thu, Dec 7, 2017 1:55 AM
tacacat
Offline
Send a private message to tacacat
Posts: 27
Thank you received: 0
Reply to gemdozer:
Did you try to adjusted or desajusted the cluch maybe the speder pine is broken and the spider is out off cluch shaft tread or the fork block is out off the collar and jam on side collar
Had a pony 3 yrs back that clutch in/ out lever not working, seems someone replaced starter on pony after blowing the nose gear ring apart on it. and never fished out the broken pcs. sure enough 1 got lodged between block and engagement point.
a mirror and good light will find the obstruction hopefully ?
Please log in or create an account to join the conversation.
Sat, Dec 9, 2017 4:31 AM
Showing 1 to 6 of 6 results
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 also joined a year ago. had been on here a couple of times as a non-member and found the info very helpful so I got a one year subscription (not very expensive at all) to try it out. I really like all the resources on here so I just got a three year. I think its a very small price for what you can get out of this site."
-Jason N

Join Today!