Hi all, I recently rebuilt the diffs of the 870C I am restoring.
The front one is smooth like new, but unfortunately the rear is quite gritty, due to wear of the ring plates.
I already chose the less worn sides to be mated with the balls, but the previous owner already swapped sides, so both are worn.
I imagine that finding replacements for those plates is really difficult now, so I ask you: what can I do?
Shall I try to rework the worn plates to restore the surface finish? If so how?
I don't want to definitely ruin those plates..
Bye!
Old diffs rebuild
- slazzaro
- Approved Member
- Posts: 77
- Joined: Wed Nov 19, 2008 6:13 pm
- Location: UK
- Has thanked: 6 times
- Been thanked: 6 times
Old diffs rebuild
Kyosho Turbo Optima, Optima MID Custom Special, Optima MID Custom Special truck converted
Yokomo YR4 PRO, YZ-870C
Associated TC4, B3 (x2), B4.1 worlds, C4.2, B42, B44, B6.2, B6.2d, B64
Losi XXXT MF2
Tamiya M05
..more in the past, more in the future..
Yokomo YR4 PRO, YZ-870C
Associated TC4, B3 (x2), B4.1 worlds, C4.2, B42, B44, B6.2, B6.2d, B64
Losi XXXT MF2
Tamiya M05
..more in the past, more in the future..
-
- Approved Member
- Posts: 374
- Joined: Tue May 27, 2008 12:29 am
- Location: Perth, Western Australia
- Been thanked: 1 time
Re: Old diffs rebuild
Use some really fine wet n dry sandpaper (1000 grit is good) and place it on top of a piece of glass (glass tables tops are great for this). Choose the diff ring side which is the least worn and work on it. Use some light oil and start lapping in a figure eight motion. No need to polish up the diff ring just enough to remove the worn areas (if anything leave the sand marks on the diff plates). This will work with the trust rings as well. Once satisfied the worn areas have been removed.....rebuild the diff with brand new diff balls on the pulley and also new trust bearings (this is critical).
If the diff rings are too badly worn this trick will not work but will be better than it was.
If the diff rings are too badly worn this trick will not work but will be better than it was.
Create an account or sign in to join the discussion
You need to be a member in order to post a reply
Create an account
Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute
Sign in
-
- Similar Topics
- Replies
- Views
- Last post
-
- 4 Replies
- 912 Views
-
Last post by Justjoe
-
- 0 Replies
- 775 Views
-
Last post by isobarik
-
- 20 Replies
- 3787 Views
-
Last post by ron
-
- 6 Replies
- 1611 Views
-
Last post by esprit79
-
- 5 Replies
- 1041 Views
-
Last post by CON2
-
- 4 Replies
- 1542 Views
-
Last post by Docrobot
-
- 7 Replies
- 2746 Views
-
Last post by EvolutionRevolution
-
- 5 Replies
- 1801 Views
-
Last post by Lonestar
Who is online
Users browsing this forum: No registered users and 1 guest