C-175 - 8 speed transmission failure?

[pfrederi 17,913]

Square head set screws

 

[purdey 13]

Hi Guys, thanks for all your input.  

 

I have now found the root of problem!  When the hub slid down the shaft (axle) I simply realigned the key and slid it back into position.  What I should have done is take it off the shaft and examine it!  When the hub started to slip down the shaft and the key rotated while the it was in use, the outer end of the key protruded out at about 45 deg, and as the hub span on the shaft it acted like a lathe and 'machined' out ~30% of the inner surface at the end of the hub!!  Attached a picture but it's not too clear.

 

Anyway the shaft seems in good condition so a new hub should fix this.  

 

Thanks 

[WH nut 553]

1 hour ago, purdey said:

Hi Guys, thanks for all your input.  

 

I have now found the root of problem!  When the hub slid down the shaft (axle) I simply realigned the key and slid it back into position.  What I should have done is take it off the shaft and examine it!  When the hub started to slip down the shaft and the key rotated while the it was in use, the outer end of the key protruded out at about 45 deg, and as the hub span on the shaft it acted like a lathe and 'machined' out ~30% of the inner surface at the end of the hub!!  Attached a picture but it's not too clear.

 

Anyway the shaft seems in good condition so a new hub should fix this.  

 

Thanks 

Replace the key and slide it on a little farther.

[oldlineman 1,482]

I had same problem on my 414-8 found hub was worn put replacement good hub on and counter set drilled the axle slightly and all is good now.

Edited March 15, 2016 by oldlineman

[Ballbuster 17]

Hello.  I'm a newbie here but have owned my beloved 1969 Raider 12 for right at nine years now.  The reason I registered onto the Red Forum was my leaking axle seals. 

 

I lived with these leaky seals for a while but just brought Thumper back from my son's house, cleaned him all up and decided to attack the problem of the worn axle seals.  

I also need to replace the brake and input shaft (shaft driven by the engine?) seal.  I knew removing these hubs can be difficult because I stripped a Raider 10 and 'raided"

it for parts for Thumper a few years back.  I actually broke one of the hubs from the Raider 10 and quickly understood how fragile they are.  Well, pulling my first hub did not disappoint me. 

It was welded on (it seemed).   Anyway, I took two 6" pieces of 1-1/12" by 1/4" angle iron and designed a puller to wrap around the axle and pull on the rear of the hub down against the axle. 

Ran it right off with my impact gun after much penetrating oil.

 

So anyway, I immediately found the pdf the guys put together on bearings and seals #s for the 8 speed trannys (thanks much fellas!)... but then I read above about "bushings being worn"

allowing excessive lateral movement of the axle.  Well, I have the excess axle movement.

How much of a pain are these bushings to replace? and where do you find these jewels?

 

I've never rebuilt a tranny before.  The closest I have ever come was replacing a shift fork in a Muncie 4 speed when I was a pup.  How much of a pain is the rebuild and are their threads that cover this?

 

Thank yoose.

 

Norm

[pfrederi 17,913]

They are not bushings they are needle bearings.  If you have up down or front to rear movement in the axles they are worn out and need to be replaced (some in and out movement 1/8" or less is OK).  if they fail the needles work their way back in the transmission and cause big issues.  You have to remove the transmission from the tractor and split it to replace them.  There are several how to guides here.

http://www.wheelhorseforum.com/forum/144-transmissions/

 

 

[gwest_ca-(File Mod) 11,107]

17 hours ago, Ballbuster said:

Hello.  I'm a newbie here but have owned my beloved 1969 Raider 12 for right at nine years now.  The reason I registered onto the Red Forum was my leaking axle seals. 

 

I lived with these leaky seals for a while but just brought Thumper back from my son's house, cleaned him all up and decided to attack the problem of the worn axle seals.  

I also need to replace the brake and input shaft (shaft driven by the engine?) seal.  I knew removing these hubs can be difficult because I stripped a Raider 10 and 'raided"

it for parts for Thumper a few years back.  I actually broke one of the hubs from the Raider 10 and quickly understood how fragile they are.  Well, pulling my first hub did not disappoint me. 

It was welded on (it seemed).   Anyway, I took two 6" pieces of 1-1/12" by 1/4" angle iron and designed a puller to wrap around the axle and pull on the rear of the hub down against the axle. 

Ran it right off with my impact gun after much penetrating oil.

 

So anyway, I immediately found the pdf the guys put together on bearings and seals #s for the 8 speed trannys (thanks much fellas!)... but then I read above about "bushings being worn"

allowing excessive lateral movement of the axle.  Well, I have the excess axle movement.

How much of a pain are these bushings to replace? and where do you find these jewels?

 

I've never rebuilt a tranny before.  The closest I have ever come was replacing a shift fork in a Muncie 4 speed when I was a pup.  How much of a pain is the rebuild and are their threads that cover this?

 

Thank yoose.

 

Norm

Welcome to the forum.

Your tractor originally had a model 5071 transmission. Since we don't have an original manual here is the parts list for the transmission. You can compare the original numbers to the pdf and with what you have. Not uncommon to find a different model transmission as they will all bolt in.

The 1969 Raider 10 used a Tecumseh engine so the engine and wiring are different but other parts may be the same.

When you get going on it start your own thread so the members can keep you and your tractor separate from the others.

 

Garry

[Ballbuster 17]

Thank you for the additional info, Garry.  I did not intend to step on someone's thread.  My apologies to all.

 

Norm