Ehhrggg, Standed by a Set-Screw

patrickt · #1 (**permalink**) 07-10-2008, 06:01 AM

Quote:

Originally Posted by Maurice Butler

The important thing is the clamping pressure on the splines. If you don't have clampling pressure and it is sitting there, the splines can round off and you end up with a bigger problem.

No, there is no clamping pressure on the splines. Note that there is a circumferential groove in the splined post. The set screw passes in to this groove and holds the arm on to the spline that way, not by clamping on to the splines. So long as the set screw does not break off, or back out, the arm will be fastened securely to the spline. Here is a close up that will let you see the groove.

RAO-3 · #2 (**permalink**) 07-10-2008, 06:53 AM

It's always the small things that get you.

I had a Thunderbird which had a hydraulic clutch, but there was this short 1 inch cable... you can figure out the rest.

Glad to hear that you were able to get the Cobra home safely.

Ray

Snakebit · #3 (**permalink**) 07-10-2008, 11:34 AM

I was under my ERA last night adjusting the brake and clutch pedals. I'm thinking of taking a socket head allen screw and drilling a hole through the head and safety wiring it to the arm.

ack fia · #4 (**permalink**) 07-11-2008, 07:56 AM

Bob,
Tell me about the "tie downs built into the lower control arms". I've been using the two extra treaded holes in back of the rear cross member and forged eye bolts. The down side is crawling under the car to hook them.
Pat

patrickt · #5 (**permalink**) 07-11-2008, 08:43 AM

Quote:

Originally Posted by ack fia

Tell me about the "tie downs built into the lower control arms". I've been using the two extra treaded holes in back of the rear cross member and forged eye bolts. The down side is crawling under the car to hook them.

BTW, I had the car back out on the road today after using LocTite on the set screw. Everything felt fine so what I think i might do, considering the likelihood of removing it again is probably small, is put a dab of J-B Weld in the middle of the spline and piece of metal extending from nine o'clock over to three o'clock thus holding the arm on even if the set-screw breaks off. If I ever have to remove the arm I'll just bust the J-B Welded metal piece loose by sticking a screw driver under it.