Cause I don't have enough going on....YZ870 edition

The place for all things Yokomo.

Moderators: scr8p, klavy69

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Thank you, I ordered some. I am still confused as the boss that the ball sits in looks to be too thick. It must be that the 1/8 are just binding tho

rccars4sal
Approved Member
Posts: 1000
Joined: Thu Aug 22, 2013 1:05 pm
Location: USA
Been thanked: 2 times

Re: Cause I don't have enough going on....YZ870 edition

Post by rccars4sal »

In tearing apart some yokomo diffs recently, I noticed that the plastic pully had been melted on one of them, causing globs of plastic to build up around the ball pockets,, causing the diff rings to rub even more on plastic, causing more melting, and making it look at a glance to be stock. Diff was run dry I guess? I had never seen this on any other type car. Fortunately, the pully cleaned up well, and the diff is actually quite smooth. Im guessing its a bit weak compared to stock, possibly brittle from heat,, but ima run it till it breaks.

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Located some arms, pullies, rubber seals, spur gear, and front belt today. Pretty stoked. Hope the price is ok lol

Dual
Approved Member
Posts: 353
Joined: Sun Aug 20, 2006 3:47 pm
Location: Perth, Australia
Has thanked: 113 times
Been thanked: 40 times

Re: Cause I don't have enough going on....YZ870 edition

Post by Dual »

EDIT: Diff balls are 1/8 size, not 3mm as I previously wrote :oops:

Vin

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Pullies must be melted then as the 1/8" balls are tight. I haven't received the 3mm to try yet but I did locate new pullies. Thanks for the help everyone!

User avatar
jwscab
Approved Member
Posts: 6570
Joined: Wed Jan 28, 2009 9:42 am
Location: Chalfont, PA
Has thanked: 16 times
Been thanked: 498 times

Re: Cause I don't have enough going on....YZ870 edition

Post by jwscab »

can always run a 1/8" ream through the holes to loosen your balls. gives you a spare set of pulleys.

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Yeah I have a .127 ream for hinge pins that should do the trick but the ball pockets are just baffling me. They appear perfect. Can't see any signs of melting, yet with the balls in there they don't look like they protrude enough to make contact- which means a 3mm would have been even worse. Very strange but I'm sure once I get the fresh pullies I will see where the problem is

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Got a couple parts in the mail yesterday, now I'm waiting for my magnesium parts to be done being media blasted. Woot!
Attachments
image.jpg

User avatar
DennisM
Approved Member
Posts: 2405
Joined: Sun Feb 26, 2012 7:07 am
Location: Denmark
Has thanked: 30 times
Been thanked: 62 times

Re: Cause I don't have enough going on....YZ870 edition

Post by DennisM »

Big spender - those rod ends sure looks nice 8)
Gone fishing

User avatar
Seabass
Business Member
Posts: 1402
Joined: Mon Jul 27, 2009 8:34 pm
Location: Mississippi
Been thanked: 12 times

Re: Cause I don't have enough going on....YZ870 edition

Post by Seabass »

Nice job on the car. Just remember if you cant find wing wire I have plenty in my closet, I can send some your way (Some of you may or may not understand)

....Reggie.... :roll: :mrgreen:

User avatar
jwscab
Approved Member
Posts: 6570
Joined: Wed Jan 28, 2009 9:42 am
Location: Chalfont, PA
Has thanked: 16 times
Been thanked: 498 times

Re: Cause I don't have enough going on....YZ870 edition

Post by jwscab »

It's super cheap and indestructible! Hahaha

Jeff where is the update with the newly made parts? Btw forgot I can get metric hardware for you for the brace from my stash. I'll send it along if you need it.

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

I think I'm good on hardware now. I'm just waiting on the magnesium parts before I show off the carbon brace :mrgreen: still have to make straps too

User avatar
Charlie don't surf
Approved Member
Posts: 9204
Joined: Tue Apr 08, 2008 2:44 pm
Location: USA
Has thanked: 251 times
Been thanked: 345 times

Re: Cause I don't have enough going on....YZ870 edition

Post by Charlie don't surf »

Seabass wrote:Nice job on the car. Just remember if you cant find wing wire I have plenty in my closet, I can send some your way (Some of you may or may not understand)

....Reggie.... :roll: :mrgreen:

Hey man, it's not my fault....[youtube]XOILKHmZBwc[/youtube] I know she told you... :lol:

User avatar
GoMachV
Approved Member
Posts: 12185
Joined: Sun Apr 29, 2012 10:31 pm
Location: Twin Falls, ID
Has thanked: 1080 times
Been thanked: 3730 times

Re: Cause I don't have enough going on....YZ870 edition

Post by GoMachV »

Ok so I did play a little but today but without my magnesium pieces I won't bore y'all with pics. I got a steering kit from Reggie and mounted it up, I had a steering brace from an eBay auction so I threw it on there too. Probably not era correct but easy enough to look beyond. I also started rebuilding the diffs with the rcps diff kit. Basically two pieces of sandpaper you glue to the outdrives and they lock the rings. Installed new rings and tried 1/8" balls in the new pulleys and it works now :wink: must have been melted pulleys all along. They look fine but obviously aren't. Rebuilt the center shaft with the new pulley, one way, and spur.

Lastly, I decided I had collected enough parts for....wait for it.....another build lol. Basically just to use up some pieces but it will be interesting :lol:

User avatar
stickboy007
Approved Member
Posts: 740
Joined: Sun Sep 16, 2012 6:13 pm
Location: Mahopac, NY
Been thanked: 53 times

Re: Cause I don't have enough going on....YZ870 edition

Post by stickboy007 »

So that's what the diff kit is for. I have one that came with an RCPS steering brace, and wasn't sure how to use it. What do you do with those two metal tubes in the diff kit?

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

Register

Sign in

  • Similar Topics
    Replies
    Views
    Last post

Return to “Yokomo Forum”

Who is online

Users browsing this forum: No registered users and 5 guests