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1952 D2 5u starter pinion

1952 D2 5u starter pinion

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dodgent
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To start with i hope im posting this in the right place, im not good at these things.
I know this issue has been beat to death but I'm hoping someone can help

I am trying to remove my starter pinion but it won't budge. Pony is out of the way, I have pried on it with the engagement lever up and down but it just came out an 1/8th of an inch and that's it

The engagement lever it very hard to move. When I bought the dozer it wouldn't move at all. After spraying everything I could with penetrating fluid I can move it with a lot of force but it doesn't feel like it is doing anything, would this be the reason I can't get the pinion to slide out of the trans?

Any suggestions on what to do next? When I have had the pony running nothing happens when I try to engage the pinion so I figured I would remove it to see what the problem is. But since I can't get it out I am at a standstill

I have soaked everything for weeks in penetrating thinking it was just the O ring holding it but I'm thinking there is some other issue holding it in. I'm thinking it must be something with the engagement lever

Thanks for any help
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Mon, Mar 21, 2016 4:47 AM
neil
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I had exactly the same experience with my 3J pinion - it was only the o-ring/rust holding it, so just keep working on it. The movement once you get it will rapidly increase (meaning in a matter of minutes/hours rather than days...) - just be careful not to break anything and take your time. And make sure you have all four bolts out - the back one is a bit hard to get at.
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Mon, Mar 21, 2016 5:13 AM
Sasquatch
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It sounds like you're fighting rust and corrosion that may be making it hard for the large o-ring to move along with the housing. You likely won't get the assembly to move out any farther than you've got it now by just using the engagement lever to push it, it's probably at the end of it's travel. Although the pinion/engagement lever was initially difficult to move, there is nothing in the engagement mechanism that's preventing the pinion assembly from coming out. It'll just take a lot more soaking, very careful prying to avoid breaking the mounting ears, and patience. If you haven't already, you'll also need to take the governor off to give you the working room needed to slide the assembly all the way out.
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Mon, Mar 21, 2016 5:19 AM
ag-mike
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Reply to Sasquatch:
It sounds like you're fighting rust and corrosion that may be making it hard for the large o-ring to move along with the housing. You likely won't get the assembly to move out any farther than you've got it now by just using the engagement lever to push it, it's probably at the end of it's travel. Although the pinion/engagement lever was initially difficult to move, there is nothing in the engagement mechanism that's preventing the pinion assembly from coming out. It'll just take a lot more soaking, very careful prying to avoid breaking the mounting ears, and patience. If you haven't already, you'll also need to take the governor off to give you the working room needed to slide the assembly all the way out.
Could it be parts coming apart at the end of the shaft, hanging up on the back side of the flywheel? Try rotating the flywheel slightly.
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Mon, Mar 21, 2016 6:12 AM
TOGNOT
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Reply to ag-mike:
Could it be parts coming apart at the end of the shaft, hanging up on the back side of the flywheel? Try rotating the flywheel slightly.
I had the same problem recently. I took apart the pinion as much as I could ( pull out the shifter lever and shift fork). Now you can grab the pinion case with vice grips and move it up and down while you continue with lubricant. If yours was stuck like mine, this won't get it out.

Thread two bolts into the front of the pinion ( you remove the front cover) and thread the bolts through a piece of chain. Now attach a come along to the front track and the chain. Carefully winch the pinion out while turning it with the aforementioned vice grips.

Sounds crazy - but it was the only way mine would come out - on two occasions!
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Mon, Mar 21, 2016 10:51 AM
Dandy Dave
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Reply to TOGNOT:
I had the same problem recently. I took apart the pinion as much as I could ( pull out the shifter lever and shift fork). Now you can grab the pinion case with vice grips and move it up and down while you continue with lubricant. If yours was stuck like mine, this won't get it out.

Thread two bolts into the front of the pinion ( you remove the front cover) and thread the bolts through a piece of chain. Now attach a come along to the front track and the chain. Carefully winch the pinion out while turning it with the aforementioned vice grips.

Sounds crazy - but it was the only way mine would come out - on two occasions!
Yup. Every D2 I ever had one out of was stubborn. Like the others have said. Keep at it. That o-ring acts like a spring. If someone ever tried to tow start the tractor with the pinion in gear it will bend the shaft. You say the pony is out of the way so you should be able to see in the housing. If the pinion is engaged in the flywheel you should be able to trip the fingers to release it. Sounds like the engagement clutch is out of adjustment if nothing was moving and the pinion was engaged. Like the others have said, If you can rotate the whole unit, It will help it to release. On the 5U Series I had just enough room to get the pinion out without taking the governor apart. Dandy Dave!
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Mon, Mar 21, 2016 5:41 PM
ccjersey
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Don't release the pinion latches, it's not helpful and it makes the whole assembly longer so it's hard to get it to come by the governor once you get it out of the hole.
D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time😄
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Mon, Mar 21, 2016 8:44 PM
cojhl2
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Reply to ccjersey:
Don't release the pinion latches, it's not helpful and it makes the whole assembly longer so it's hard to get it to come by the governor once you get it out of the hole.
When I removed mine about 5yrs back I remember I had to remove one of the cap screws on the inspection cover behind the clutch mech. Could this be an issue with your problem?
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Mon, Mar 21, 2016 9:04 PM
dodgent
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Reply to cojhl2:
When I removed mine about 5yrs back I remember I had to remove one of the cap screws on the inspection cover behind the clutch mech. Could this be an issue with your problem?


I removed that cap screw on the inspection cover before I tried it, it has to come a long way before it gets to that, you could probably slide a dime in the separation is all the further it is out --- I will try soaking it more and jiggling it.

I appreciate all your help on this, frustrating dang thing.
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Wed, Mar 23, 2016 2:24 AM
Dandy Dave
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Reply to dodgent:


I removed that cap screw on the inspection cover before I tried it, it has to come a long way before it gets to that, you could probably slide a dime in the separation is all the further it is out --- I will try soaking it more and jiggling it.

I appreciate all your help on this, frustrating dang thing.
Jogging my Memory ccjersey. Your right. Releasing the fingers does make it longer. Keep soaking and wiggling. Dandy Dave!
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Wed, Mar 23, 2016 5:03 AM
Dandy Dave
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Reply to Dandy Dave:
Jogging my Memory ccjersey. Your right. Releasing the fingers does make it longer. Keep soaking and wiggling. Dandy Dave!
Do you have a D-311 Servicemen's Reference Book? Do you have a Parts Book? The parts book shows 4 cap screws and 4 lock washers holding the housing. To get clearance to pull it all the way out you need to take the end cap off. It has been more then 20 years since I've been in one. Dandy Dave!
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Wed, Mar 23, 2016 5:13 AM
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