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Old 31 Aug 2020, 00:59 (Ref:3999135)   #2386
MGDavid
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WHOOP WHOOP!
Well done Graham, just rewards at last.
Tell us, why does a piffling u/j mean the end of the season, can't be more than a day's work can it?
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Old 31 Aug 2020, 05:54 (Ref:3999152)   #2387
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911thillclimber should be qualifying in the top 5 on the grid911thillclimber should be qualifying in the top 5 on the grid
Well...
It could be the CV outer which is integrated into the drive stub shaft and splined drive to the wheel flange, it is not a bolt-on CV as I wish it was. It is an original 1974 ish March F2 part and both sides have been showing signs of wear for some time (years), or, most likely it is the 3 drive pegs on the wheel mounting hub that are broken or loose.

If the latter then that could be easy, if the former than heaven knows what to do, BUT it might be time to re-engineer the design to take ordinary Girling CV's which I've seen done on many cars of this era, but that will take the time and a big lathe that I don't have, but know someone who has and the expertise too.

This is the CV I refer to:

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Old 31 Aug 2020, 09:13 (Ref:3999173)   #2388
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Thanks, I see now - not exactly run-of-the-mill is it!
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Old 31 Aug 2020, 16:12 (Ref:3999258)   #2389
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911thillclimber should be qualifying in the top 5 on the grid911thillclimber should be qualifying in the top 5 on the grid
No, but the problem was!

Went to Oulton Park in the old 911 for a good run and to see some fast cars, but was itching to get home and see what was what.

Got the wheel off, the nut was not tight. But not loose either

Wheel off and all 3 drive pins were loose.
Got the caliper off, tightened the pins (allen bolts with slender nuts, M10) as tight as I dared, and put it all back together.

Done!

Whew, I was certain it was the March CV's done fore.
I have been told they are Citroen DS front drive shafts stubs and CV's...
Why would March use such a thing?
Some research needed.
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Old 1 Sep 2020, 07:34 (Ref:3999359)   #2390
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Presumably it was back in the 70s. Reliability of supply was pretty poor, maybe there was a Citroen garage next door?

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Old 1 Sep 2020, 08:21 (Ref:3999360)   #2391
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Or may be they went on the easier way choosing a manufacturer with some expertise in FWD, in other words traction avant. Certainly you can find a better choice nowadays, lighter and more reliable. I remember a french garage using Citroën parts for the front end of their Formule France, hubs and bearings, it was Garage Hampe.
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Old 1 Sep 2020, 15:17 (Ref:3999463)   #2392
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911thillclimber should be qualifying in the top 5 on the grid911thillclimber should be qualifying in the top 5 on the grid
The parts are off a March 741, 1974 vintage, and were used on F1 cars and I guess F2 etc.
In the last pic below you can see the conical section that is machined from the solid bar to the drive spline. The CV balls etc are in that cone. I've never had it apart, almost scared to!
Pic below off Google.




And my Lola:

host images


Last edited by 911thillclimber; 1 Sep 2020 at 15:28.
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Old 11 Sep 2020, 11:33 (Ref:4001651)   #2393
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Carson Hayes should be qualifying in the top 10 on the grid
Man, you have guts. I'm too scared to segregate mine that way.
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Old 12 Sep 2020, 15:50 (Ref:4001879)   #2394
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911thillclimber should be qualifying in the top 5 on the grid911thillclimber should be qualifying in the top 5 on the grid
This little car is easy to work on, I get a bit nervy about this CV in the hubs in case I can't get parts to fix it.
I think this is why many I've seen convert them to normal GKN cv joints like I have at the gearbox end.
Nothing to worry about once done.

I will have to bite the bullet soon I think.
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Old 22 Sep 2020, 17:05 (Ref:4005647)   #2395
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911thillclimber should be qualifying in the top 5 on the grid911thillclimber should be qualifying in the top 5 on the grid
So, the last outing for 2020 on sunday at Loton Park close to Wales, my club's own hillclimb.
All Covid restricted and then some, masks everywhere etc.

What a sad year for so many, from real tradidy to outdoor persuits cancelled or restricted.

Sure hope 2021 starts off clear in late March, a full year from lock-down 2020.
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