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HELP! I can't get my pot joint off.

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HELP! I can't get my pot joint off.

Post  Rum Tum Tugger on Mon May 16, 2011 9:53 pm

I need to get the engine out of the Scamp by tomorrow afternoon, but one of the inboard CV joints is being recalcitrant (the other disconnected OK). I have a home-made removal tool as described in the Haynes manual, which has always worked so far, but this time it's just getting distorted from the hammering. The pot joint was new not two months ago, so I don't want to risk trashing it by pulling it apart.

Removing the complete subframe assembly is not an option as the chassis needs to be rolling, to be loaded onto a trailer.

Has anyone any ideas?
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Re: HELP! I can't get my pot joint off.

Post  wezgit daan saaf on Mon May 16, 2011 11:14 pm

We have the original churchill tool,I don't know if it's the same design as what you are using,but it's a flat plate about 1/4" thick with a "u" cut in it and the "u" has chamfored edges.Normally a sharp thump with a knocking stick does the trick,if you still don't have any luck I can parcel it up and send it to you,you can then pass it back at the Hastings bash.You could try using your tool on one side and then turn the driveshaft 180 degrees and try again,by doing that you can sometimes get the circlip to move into a position so that the joint comes off,we sometimes find that on stubborn c/v joints.
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Re: HELP! I can't get my pot joint off.

Post  Rum Tum Tugger on Tue May 17, 2011 9:13 am

Thanks Chris - my own version was made out of a section of 2mm thick channel with the U cutout at one end, and a stout bit of angle for thumping welded to the other.

Plan A is to make up a new tool to a similar design but using 3mm metal.
Plan B is to dismantle the suspension, remove the outer CV joint and see if I can fiddle the engine out with the driveshaft attached.
Plan C of last resort will be to remove the front subframe, and load the chassis onto the trailer with a trolley jack under the front end. May not be feasible, but at some point during the last rebuild I used to put the car back in the garage that way.

Incidentally the present engine has been in for ten years - for this car, I think that's a record!
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Re: HELP! I can't get my pot joint off.

Post  wezgit daan saaf on Tue May 17, 2011 8:27 pm

The inner plunge joint does come apart qute simply leaving the tulip behind in the gearbox,undo the clip holing the boot,you can then withdraw the shaft making sure none of the balls fall out of the cage.
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Re: HELP! I can't get my pot joint off.

Post  Jono on Tue May 17, 2011 9:20 pm

You need to switch from 2lb "Toffee hammer" to 4lb "Engineers adjuster".... Cool
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Re: HELP! I can't get my pot joint off.

Post  TRR Motorsport on Wed May 18, 2011 7:06 am

Jono wrote:4lb "Engineers adjuster".... Cool

ahh, the Solihull door setter Laughing That'll do the trick.
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Re: HELP! I can't get my pot joint off.

Post  Rum Tum Tugger on Wed May 18, 2011 9:23 am

Sorted, with the old and never-failing combination of brute force and spot-on precision. Laughing

I made up a new tool, like the old one only beefier, and with a 2ft handle to give added leverage, particularly in combination with Special Tool #0. When I get time, I'll do a drawing of it, or rather of the slightly better version I would have made if I hadn't been so pressed for time.

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Re: HELP! I can't get my pot joint off.

Post  Jono on Wed May 18, 2011 12:43 pm

TRR Motorsport wrote:

ahh, the Solihull door setter Laughing That'll do the trick.

I was visiting the production line with the then QA manager ..just after BMW took overů. and watching the "approved" technique for getting the doors to fit........ affraid
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Re: HELP! I can't get my pot joint off.

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