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8N Brake and Seal Replacement

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Jim Ainsworth

04-13-2001 02:30:27




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I recently purchased an 8N that I knew the brakes would need replacing but now the seals are leaking and fluid is running down the outside of the back wheels. I just ordered new brakes and what seals I could find at two different part locations. Q1 - Any ideas of what troubles I can look forward to in performing this maintenance? Q2 - Is there a rebuild kit that is available which has all the required seals/bearing, (etc.), to rebuild from the hub to the differential. I don't really want to go into the differential right now. Q3 - One rear wheel has some in/out play - should I look at replacing the hub? Last but not least I have looked at a couple of Parts web sites and a couple of parts catalogs but none of them carry particular items like Gov Linkage Arms, Brake Pedal locking Linkage, etc. Any suggestions on parts houses? I know this is wordy but I am the new kid on the block with a new project (Toy - my wife says) and I would like to do this right. Any help greatly appreciated.

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Kev8n

04-13-2001 16:32:09




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 Re: 8N Brake and Seal Replacement in reply to Jim Ainsworth, 04-13-2001 02:30:27  
I replaced the seals and brakes in my 49 8N just last week.

I don't have a lot of experience in that type of stuff, but I looked at the drawing in the FO-4 manual and everything went smooth. Hardest part was putting the dang brake shoes back on... took a while to figure that out.

The kit to replace axle seals was about $18 at a local tractor place. It contained a the Seals (which is really just one unit, the Outer Retainer with Seal and Gasket). I also got two of the cork seals that sit in front of the bearing.

I had play in my wheel, but it was because the axle nut was not tight enough. If memory serves it should be torqued to 450 ft lbs.

One thing that I read in the archives was that you should place some gasket sealant between the shims to prevent any leaks there. Search the archives for more information.

Take your time.. and good luck.

Kevin

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Danny in CO

04-13-2001 08:32:31




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 Re: Re: 8N Brake and Seal Replacement in reply to Don (NC), 04-13-2001 08:19:16  
I assume he means the toothed cogs that are used to keep the brakes engaged.



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Ahh...the dogs...Don (NC)

04-13-2001 10:13:51




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 Re: Re: Re: 8N Brake and Seal Replacement in reply to Danny in CO, 04-13-2001 08:32:31  
; )



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Jim Ainsworth

04-13-2001 19:19:59




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 Re: Re: Re: Re: 8N Brake and Seal Replacement in reply to Ahh...the dogs...Don (NC), 04-13-2001 10:13:51  
Thanks for the info. I have researched and found most all the seals/bearings/brakes - except for the dogs! Now that I have found the location to get the parts, I have read the books at least 10 times and the job doesn't seem too difficult if you can follow the instructions. I have been working with military aircraft the last 30 years so I've gotten pretty good at that. Now my newest discovery. I have much play when I move the wheel inbd/outbd - would normally assume bad bearings but I have never disassembled an 8N so I am asking???? A previous owner of this 8N has put two nuts on the spindle and tac welded the outside nut to the spindle. Before I break the welds and get in there I would guess it was done because they couldn't get the play out or the nut torqued. New spindle - if so, would anyone know if you can buy the spindle and all attaching hardware as a kit? Thanks again for the help.

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Chris(MI)

04-15-2001 06:37:32




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 Re: Re: Re: Re: Re: 8N Brake and Seal Replacement in reply to Jim Ainsworth, 04-13-2001 19:19:59  
A new axle shaft and hub will run you about $125.00 to $150.00 if the splines are too buggered up to get a good seal. Make sure to torque axle nut to 450 ft/lbs when reinstalling.



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