MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: jvanzyl on July 19, 2023, 20:47

Title: How to strip apart an outer cv joint
Post by: jvanzyl on July 19, 2023, 20:47
Hi all,
Can anyone point me to a guide or resource on how to strip apart an outer cv joint?

(https://i.ibb.co/yskGj2K/IMG-3052.jpg) (https://ibb.co/yskGj2K)
Title: Re: How to strip apart an outer cv joint
Post by: jvanzyl on July 20, 2023, 06:55
Ok I'm finding info for other cars talking about hitting these things at specific angles which I'm not a fan of.

New idea- is it ok to just submerge the whole joint in brake cleaner until all the old grease is gone and then push in all the new grease?
Title: Re: How to strip apart an outer cv joint
Post by: Gaz2405 on July 20, 2023, 08:33
I just beat the shit out of mine with a big hammer to snap the circlip.... ;D
Title: Re: How to strip apart an outer cv joint
Post by: Carolyn on July 20, 2023, 08:42
I would wash it out with petrol, which will shift the old grease really well.  Dry with an airline and re-pack.
Title: Re: How to strip apart an outer cv joint
Post by: jvanzyl on July 20, 2023, 09:02
Quote from: Carolyn on July 20, 2023, 08:42I would wash it out with petrol, which will shift the old grease really well.  Dry with an airline and re-pack.

This sounds imminently sensible... thank you! @Gaz2405 i appreciate the option should I have the sudden urge to let loose with the hammer!
Title: Re: How to strip apart an outer cv joint
Post by: jvanzyl on July 20, 2023, 09:23
Wow! That was fast! I was expecting it to need ages of soaking before the grease shifted, but apparently not!

Going to leave them in there till lunch time and then give them a blast with the air as suggested- thanks @Carolyn !
(https://i.ibb.co/qYMDP3M/IMG-3056.jpg) (https://ibb.co/qYMDP3M)

(https://i.ibb.co/XX6tW9R/IMG-3057.jpg) (https://ibb.co/XX6tW9R)
Title: Re: How to strip apart an outer cv joint
Post by: Joesson on July 20, 2023, 10:04
Having cleaned mine in situ, following similar advice from @Carolyn, I thought your need was to disassemble your CV for reasons other than simply cleaning.
I would be very shy about hitting hardened steel, particularly where bearings  were involved, with a hammer.
Title: Re: How to strip apart an outer cv joint
Post by: jvanzyl on July 20, 2023, 10:17
Quote from: Joesson on July 20, 2023, 10:04Having cleaned mine in situ, following similar advice from @Carolyn, I thought your need was to disassemble your CV for reasons other than simply cleaning.
I would be very shy about hitting hardened steel, particularly where bearings  were involved, with a hammer.

Nope- just cleaning, regreasing and replacing the CV boots. 150k miles is probably time to do it, plus there was some brown residue in one of them so I think there was a leak somewhere as well.
Title: Re: How to strip apart an outer cv joint
Post by: Joesson on July 20, 2023, 11:51
Quote from: jvanzyl on July 20, 2023, 10:17Nope- just cleaning, regreasing and replacing the CV boots. 150k miles is probably time to do it, plus there was some brown residue in one of them so I think there was a leak somewhere as well.

It was April 2017 when my PFL 2 was at 62,500 miles I noticed a weep/ leak from the driver's side inner CV boot.
The oil OE grease was an emulsified "oil" and mostly ran out of the joint, I helped it along with a small paintbrush, I don't recall, if I used a solvent as the shafts were in situ and the boots were in good condition and didn't want to damage them.
I did re grease all the joints and replaced the clips with aftermarket type. Fortunately my neighbour at that time had a heavy duty professional type of pliers to fit the clips, as the pliers supplied with the clips was made of Chinesium and broke at first use!
I recall @jinxedkitten, not heard from these long days past, as having a similar CV problem but no other reports of similar leakages.
Is it that the leaks go unnoticed, unreported or don't happen to others and JK and I got the short straw?
Title: Re: How to strip apart an outer cv joint
Post by: jinxedkitten on July 21, 2023, 17:56
Quote from: Joesson on July 20, 2023, 11:51It was April 2017 when my PFL 2 was at 62,500 miles I noticed a weep/ leak from the driver's side inner CV boot.
The oil OE grease was an emulsified "oil" and mostly ran out of the joint, I helped it along with a small paintbrush, I don't recall, if I used a solvent as the shafts were in situ and the boots were in good condition and didn't want to damage them.
I did re grease all the joints and replaced the clips with aftermarket type. Fortunately my neighbour at that time had a heavy duty professional type of pliers to fit the clips, as the pliers supplied with the clips was made of Chinesium and broke at first use!
I recall @jinxedkitten, not heard from these long days past, as having a similar CV problem but no other reports of similar leakages.
Is it that the leaks go unnoticed, unreported or don't happen to others and JK and I got the short straw?

Damn you've got a good memory!
Mine was caused by a slight error by my local mechanic - they'd applied heat to remove bolts somewhere on the wheel assembly when redoing the handbrake and managed to slightly melt a bit of the CV boot at the same time, fixed it foc for me though.
Title: Re: How to strip apart an outer cv joint
Post by: Joesson on July 22, 2023, 16:16
Quote from: jinxedkitten on July 21, 2023, 17:56Damn you've got a good memory!
Mine was caused by a slight error by my local mechanic - they'd applied heat to remove bolts somewhere on the wheel assembly when redoing the handbrake and managed to slightly melt a bit of the CV boot at the same time, fixed it foc for me though.

Hello after a long time JK, hope all is well with you and your yellow 2. I did recall your problem but not the cause. Whether I'm the only owner whose CV grease turned into an emulsion or not I'm pleased that I noticed the leak and have grease back in the joints.
Title: Re: How to strip apart an outer cv joint
Post by: Carolyn on July 22, 2023, 17:20
I reckon most of our members' cars will have dirty cream where their CV grease should be. 

Every one I've opened up was emulsified, unless it had been re-greased in the past few years.
Title: Re: How to strip apart an outer cv joint
Post by: Joesson on July 22, 2023, 18:44
Quote from: Carolyn on July 22, 2023, 17:20I reckon most of our members' cars will have dirty cream where their CV grease should be. 

Every one I've opened up was emulsified, unless it had been re-greased in the past few years.

Your saying my car's not special ! ?