Club G40 Forum

Technical => Chassis & Braking => Topic started by: RyanC on July 09, 2013, 10:48:04 PM

Title: Ball joint refurb
Post by: RyanC on July 09, 2013, 10:48:04 PM
I've got some g40 TCA with the rose jointed inner joint but the outer ball joints are worn out, dose anyone know if there is anywhere you can get new joints put in or refurb kit so I can do it my self, its only a pressed in ball and socket,
You can't get the g40 TCAs anymore so don't want to chuck them!
Title: Re: Ball joint refurb
Post by: scotsjohn on July 10, 2013, 12:34:43 PM
Should be able to find a couple of sites in Classic Car Magazine and suchlike.
Title: Re: Ball joint refurb
Post by: Jezza-7 on July 10, 2013, 02:06:30 PM
this guy does the trick quite well

http://www.youtube.com/watch?v=PZLxPyRdAbY
Title: Re: Ball joint refurb
Post by: RyanC on July 10, 2013, 06:38:30 PM
kool thanks guys
Title: Re: Ball joint refurb
Post by: JoeH on July 10, 2013, 07:12:08 PM
Would it be worth getting the rose joint done to?
Title: Re: Ball joint refurb
Post by: z3i on July 10, 2013, 08:31:22 PM
where do you get the little rubber boots from? on its own? and same for the track rod ends, mine are split but in perfect working order, and yeah can you not push a rose joint into the inner one?
Title: Re: Ball joint refurb
Post by: breadman on July 10, 2013, 09:58:50 PM
Quote from: Jezza-7 on July 10, 2013, 02:06:30 PM
this guy does the trick quite well

http://www.youtube.com/watch?v=PZLxPyRdAbY

Bloody hell, he did that quick! :D
Title: Re: Ball joint refurb
Post by: PeteG40 on July 10, 2013, 10:24:55 PM
Quote from: z3i on July 10, 2013, 08:31:22 PM
where do you get the little rubber boots from? on its own? and same for the track rod ends, mine are split but in perfect working order, and yeah can you not push a rose joint into the inner one?

ebay!
Title: Re: Ball joint refurb
Post by: hayesey on July 11, 2013, 11:07:32 AM
that's a cool video, I might give it a go with an old TCA.  What is he welding part way through though?  Is he just doing that to get some heat into the metal to push the ball joint outer casing out? (and/or welding a ridge to push it out with)?
Title: Re: Ball joint refurb
Post by: Jezza-7 on July 11, 2013, 12:05:54 PM
Yeah i thought about getting an old one as well. Wonder what size ball joint will be needed?

I would of thought it would be to do with getting it really hot, as it would expand then quickly cooling it to make it contract so it comes out easier.

Will send him a message on youtube.

Title: Re: Ball joint refurb
Post by: Andy on July 11, 2013, 01:38:53 PM
He grinds the old balljoint down to separate the ball/thread part from the bearing and smashes the ball/threaded part out. That leaves the bearing race in-situ, so he runs a bead of weld around it to get it hot before throwing it in the water to make it contract uber-quickly and drop out.
Title: Re: Ball joint refurb
Post by: Yoof on July 11, 2013, 01:50:44 PM
As Andy said- it also works if you leave them to air cool, I've done it on a stubborn wheel bearing race before, bead of weld round, allow to cool, weld/race contract and pop out.

Neat trick providing you don't weld the race to the housing...
Title: Re: Ball joint refurb
Post by: RyanC on July 11, 2013, 10:18:29 PM
it cant be to hard to change them tbo as long as we can find the right size joint to put back in i might try to get mine out soon, would be nice to save the g40 tca's. will let you know how i get on
Title: Re: Ball joint refurb
Post by: RyanC on August 26, 2013, 06:53:20 PM
Dose anyone know if the rose joints can be pressed out? Or are they in with cir-clips (haven't look yet) Been looking for replacement ball joints cant find any in the size I want so im thinking of taking the rose joint out getting standard arms and getting them machined so the joint can be pressed in because standard arm inner diameter is smaller and tapered for the bush to fit.
Title: Re: Ball joint refurb
Post by: RyanC on August 27, 2013, 08:57:35 PM
Right Ive managed to press the rose joints out! So I'm going to buy some standard arms and get them machined out so I can press the rose joints in hopfully if the standard diameter is smaller witch I'm sure it is.
I will get some pictures up when u get the measurement
Title: Re: Ball joint refurb
Post by: z3i on August 27, 2013, 08:59:53 PM
This could be awesome! Any ideas where to get just a rose joint from?
Title: Re: Ball joint refurb
Post by: RyanC on August 27, 2013, 09:07:50 PM
Haven't a clue as I'm using my g40 ones but will be hard to find some tbo unless u modify the arm itself or just make ur own from scratch like ppp ones
Title: Re: Ball joint refurb
Post by: RyanC on September 08, 2013, 06:35:44 PM
right so its worked :)

firstly i pressed the rose joint out the g40 TCA and pressed the bush out the standard one i got off my mate to check the inner diameter as u can see the standard on with the bush (top one) has a smaller inner diameter so i went ahead a ordered so good quality standard TCAs
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps2f3bcf82.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps2f3bcf82.jpg.html)

so i got my new standard TCAs and pressed the bushes out got my two rose joints from the g40 TCAs
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zpsecb6d68b.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zpsecb6d68b.jpg.html)

sent it to my local machine shop and asked then to make it a press fit
few days later
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps60481fef.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps60481fef.jpg.html)

so i got my g40 rose joints and pressed them in at work hoping that they will be a snug fit
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps40d44960.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps40d44960.jpg.html)
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps64402136.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps64402136.jpg.html)
they were perfect took 2 tonne of pressure to put them in so perfect really
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps6925bd0e.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps6925bd0e.jpg.html)
cleaned up the dust covers and holding rings
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps5ee5f196.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps5ee5f196.jpg.html)
and pressed out the outer bushes ready for nylon ones :)
(http://i1171.photobucket.com/albums/r554/RyanChapple/null_zps4c981471.jpg) (http://s1171.photobucket.com/user/RyanChapple/media/null_zps4c981471.jpg.html)

so ive just painted the outer part of the rose joint so it dont rust then ill pump them with grease put the dust covers back on, put the nylon bushes in and ive got myself some new g40 TCAs :)
Luckly my rose joints have loads of life left in them but when they do wear out i will get the measurements i need and get some proper spherical ones:)

over all the new standard TCAs were £41 for both
machining £45 for both

job done :)

Title: Re: Ball joint refurb
Post by: vee-dub90 on September 08, 2013, 07:10:27 PM
Awesome!
Title: Re: Ball joint refurb
Post by: hayesey on September 09, 2013, 11:02:18 AM
good stuff!  I guess you could do the same with the outer bushes too, machine the bore and then press fit a suitably sized spherical bearing to that.
Title: Re: Ball joint refurb
Post by: z3i on September 09, 2013, 06:36:09 PM
Quote from: hayesey on September 09, 2013, 11:02:18 AM
good stuff!  I guess you could do the same with the outer bushes too, machine the bore and then press fit a suitably sized spherical bearing to that.

Would that be better than a nylon bush?
Could be onto something there ryan :)
Title: Re: Ball joint refurb
Post by: RyanC on September 09, 2013, 10:23:45 PM
I guess it could work as long as it was a bearing and not a rose joint plus you would probably need a cer-clips to hold he bearing in as I wouldn't want to rely on the press fit to keep it from moving, tbo nylon ones do the job pretty well I think but deffo one I will look into! :)