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Re: Churchill Hub Tool

To: Barry Schwartz <bschwart@pacbell.net>
Subject: Re: Churchill Hub Tool
From: Bob Lang <LANG@ISIS.MIT.EDU>
Date: Tue, 21 Apr 1998 14:33:34 -0400 (EDT)
Cc: triumphs@Autox.Team.Net
On Tue, 21 Apr 1998, Barry Schwartz wrote:

> Robert writes:
> >I have a unique opportunity with my TR6. In order to put some newly
> >acquired wheels on my car, I have to upgrade my studs from 7/16" to 1/2"...
> >of course this means machining the hubs to accomodate new studs, and that
> >means taking the rear hubs apart... Joy of Joys!
> ****************************************************
> Robert,
> Why go through all that trouble?  7/16 studs are plenty strong.  I"m sure
> you could find a lug nut that would fit the application-surely it would be
> much simpler than what you are contemplating-It might not even be that
> expensive to have a machine shop make a set for you if nothing is
> commercially available.  Unless of course you just *want* to take the hubs
> apart. . .I dunno, just sounds like the hard way to do it-

The wheels are Revolutions, and the body of the wheel where it contacts 
the hub is around 1 inch thick. With the stock studs the threaded portion 
only protrudes from the wheel by about three or four threads, certainly 
not very safe.

Further, the wheels have been drilled for 1/2" studs.

So, my best case would have been to press in 3 inch long 7/16ths studs. 
Two problems: one: the stud won't clear the inner hub and two: the knurled 
section of the stud is narrower than the stock stud (I was surprised 
too). As a result, I have to take the hub apart to insert the new studs 
and I have to go to a bigger stud and of course drill out the outer hub 
to the bigger dimension.

Just about all the feedback that I got regarding this project was that 
1/2" is the way to go. At least I'll be able to head into a corner a big 
velocites and not wonder if the studs are going to fail!

Of course at the rate I'm progressing, I'll be old(er) and grey(er) by 
the time the car ever turns a wheel. And I'll still be waiting for the 
rear suspension swivel bolts that I ordered some time back in February... 
(not to worry, I just put in another $100 order to Pegasus Racing for 
some AN bolts... that ought to do the trick.)

On the other hand, if anyone reading this has put long studs on a TR6 
rear hub, I'd be most interested in sharing your experience(s).

The fronts were way easy, I got those done a couple of weeks ago.

Wish I had a Bridgeport milling machine in my basement!

And I never seem to procede on any project in the easiest possible manner. 
If I did, I'd be driving Bob Bownes' GP Spitfire (Hi Bob) now instead of
building a TR6 from scratch!!! Or I'd be driving any one of the several
kool Triumph race cars that I have found for sale _after_ I sank some
serious $$$ k's into the parts that I have. 

On the other hand, I really really really like TR6's and the only one for 
sale that I have seen in the last year or so was Fletcher Williams' SCCA 
EP champ from '91 - but that was $18k and I'd have to sell the house to 
buy that (and there's no chance of that!).

> Barry Schwartz (San Diego) bschwart@pacbell.net

regards,
rml
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