Reverse Idler Gear Bushing Replacement

Time saving tips to keep your Cub running smooth

Moderators: Barnyard, Team Cub

Reverse Idler Gear Bushing Replacement

Postby wfmdfm » Sun Dec 16, 2012 7:48 am

While in the process of rebuilding my transmission I found the Idler Gear to have a lot of slop on the shaft. After checking the specs and miking the shaft and bushing I decided to replace the bushing. Searching the forum and reading the manual I found that it was more than just pressing out and pressing in a new one. I also found that this is a part that needed to come from the dealer. I am not a machinist but here is how I replaced the bushing.
The first step was to find one. TM does not have it so I found one at http://farmallparts.com/products/?view= ... t_id=26727
Image

The bearing was very thin and I did not dear press the old one out with the new one. I found a 12 mm Craftsman socket was just the tool to press it out.
Image
Using the arbor press it slid out very easy.
Image
Pressing the new one in was just as simple.
Image
The manual calls for reaming the bushing to some tight tolerances
Image
I was able to purchase a reamer that will adjust from 0.59375 to 0.65625. http://dewitt-tool.com/DWRRADJCreamers_adjustable.aspx I actual ended up getting a full set at Harbor Freight.
Image
Next was figuring out how to adjust it to what I needed. Once I messed with it I found that working the adjustment nuts on both ends of the tool that I could adjust to tight tolerances. Working with a micrometer I got it to where I needed to be and then checked each cutter for the proper measurement.
Image
I was good to go at that point. I held the gear in one hand and the reamer in the other and slowly worked the tool thru the bushing. Spinning the reamer as I pushed it thru.
Image
Not much is removed as you can see the small remains of what was reamed out.
Image
I put some fresh oil on the shaft and slid it in. I turned very smooth without any slop.
Wally
Image
wfmdfm
Cub Star!!
Cub Star!!
 
Posts: 397
Joined: Tue Jun 23, 2009 6:59 pm
Location: Middleboro Massachusetts
Zip Code: 02346
Tractors Owned: .
1947 Circle Cub #1110
1947 Circle Cub #1316
1948 Cub #43915
1966 Power King
189 two way Plow
54A Blade
144 Cultivator
26 ft Welcraft
1967 Case 530ck Backhoe

Re: Reverse Idler Gear Bushing Replacement

Postby Criswell » Sun Dec 16, 2012 12:33 pm

Concise and to the point. Only two things I would add, use some oil before pressing in the new bushing and cutting fluid/oil when reaming, and do not reverse the direction of the reamer (always turn clockwise).
Where you are, right now, is of absolutly no use unless you are able to get away from it, FAST!
Criswell
Cub Star
Cub Star
 
Posts: 148
Joined: Thu Sep 29, 2011 3:17 pm
Zip Code: 48180
Tractors Owned: 1952 Cub with
- 54 Blade
- 193 Moldboard Plow
- Woods 59 C-2 mower


Return to Engine, Clutch, Transmission and Hydraulics

Who is online

Users browsing this forum: No registered users and 2 guests