Differential trouble

gray horse · 04-16-2013, 07:52 AM

I've had the cart out and it was running good but seemed slow for what is in it. Yesterday I decided to tear into it and see if I could find anything wrong. I discoverd that the flywheel had moved, probably during assembly, and was not advanced as it should be. Fixed that, no problem. I then looked at the clutch and noticed that the inner oil seal on the secondary had come out. Pulled the clutch and found that the inner bushing is shot, it's missing 2 plastic ramps and the 2 seals are gone.

It appears as though there is a taper iin the middle of the input shaft. Will measure this today. I assume that this is not normal and that the shaft should be flat and straight across. Am I right in my thinking? Will let you know what I find.

CharlieN · 04-16-2013, 08:20 AM

From the splines out to the taper the outer sheave mounts on the shaft should be straight.
Inboard of the splines the transmission would have a seal and a 6205 bearing.
I expect the bushing you are talking of is the one in the sliding sheave?
If two wear pads were missing I expect that would destroy the inner bushing pretty quickly.

gray horse · 04-17-2013, 07:32 AM

Checked the shaft yesterday with a machinist's rule and found that approx. 1/2" from the splines towards the threaded end the shaft has a taper/wear in it that is roughly 1" long and approx 1/16-1/8" deep. I'm assuming that the rearend was run for sometime with a bad bushing in the clutch in order for it to wear like that. Not sure that the shaft can be fixed or used as is. I've order new seals, ramps and bushing for the sliding sheave and helix. Hate to think what it will cost if I have to get a new input shaft.

CharlieN · 04-17-2013, 08:06 AM

Interestingly enough the shaft #J10-46321-00-00 is under $50, that really wouldn't hurt that bad.

smallblock450sl · 04-17-2013, 08:57 AM

I think he's running a G2 transaxle? then the input shaft part #is 99999-03023-00 suggested retail 199.95. Gray Horse, if it's that damaged, the new bushing won't last long, (even with regular greasing) and woulld still "growel". Maybe weld and machine?

CharlieN · 04-17-2013, 09:08 AM

Quote:

Originally Posted by smallblock450sl

I think he's running a G2 transaxle? then the input shaft part #is 99999-03023-00 suggested retail 199.95.

That would hurt.
Metalspray or welding to repair yours. Depending on shops in your area or your abilities that might get close to the $200.

04-16-2013, 07:52 AM	#1
gray horse Gone Wild Join Date: Aug 2012 Location: Colona, Illinois Posts: 473	Differential trouble I've had the cart out and it was running good but seemed slow for what is in it. Yesterday I decided to tear into it and see if I could find anything wrong. I discoverd that the flywheel had moved, probably during assembly, and was not advanced as it should be. Fixed that, no problem. I then looked at the clutch and noticed that the inner oil seal on the secondary had come out. Pulled the clutch and found that the inner bushing is shot, it's missing 2 plastic ramps and the 2 seals are gone. It appears as though there is a taper iin the middle of the input shaft. Will measure this today. I assume that this is not normal and that the shaft should be flat and straight across. Am I right in my thinking? Will let you know what I find.

04-16-2013, 08:20 AM	#2
CharlieN Gone Wild Join Date: Dec 2012 Location: E. Wallyworld Vermont Posts: 234	Re: Differential trouble From the splines out to the taper the outer sheave mounts on the shaft should be straight. Inboard of the splines the transmission would have a seal and a 6205 bearing. I expect the bushing you are talking of is the one in the sliding sheave? If two wear pads were missing I expect that would destroy the inner bushing pretty quickly.

04-17-2013, 07:32 AM	#3
gray horse Gone Wild Join Date: Aug 2012 Location: Colona, Illinois Posts: 473	Re: Differential trouble Checked the shaft yesterday with a machinist's rule and found that approx. 1/2" from the splines towards the threaded end the shaft has a taper/wear in it that is roughly 1" long and approx 1/16-1/8" deep. I'm assuming that the rearend was run for sometime with a bad bushing in the clutch in order for it to wear like that. Not sure that the shaft can be fixed or used as is. I've order new seals, ramps and bushing for the sliding sheave and helix. Hate to think what it will cost if I have to get a new input shaft.

04-17-2013, 08:06 AM	#4
CharlieN Gone Wild Join Date: Dec 2012 Location: E. Wallyworld Vermont Posts: 234	Re: Differential trouble Interestingly enough the shaft #J10-46321-00-00 is under $50, that really wouldn't hurt that bad.

04-17-2013, 08:57 AM	#5
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,874	Re: Differential trouble I think he's running a G2 transaxle? then the input shaft part #is 99999-03023-00 suggested retail 199.95. Gray Horse, if it's that damaged, the new bushing won't last long, (even with regular greasing) and woulld still "growel". Maybe weld and machine?

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