keeping CV bolts tight..............help

[jess p]

Twice this week I've dropped a halfshaft on two different cars. Fortunately,
I was coasting to a stop when they dropped. I couldn't imagine what it might be like at freeway speeds. I used locktite ( red) even. Any trick ideas.







76 911S
81 911 SC
66 912 V8
66 912
71 914 project car
79 930 project car
H2 triple drag bike fast-by-gast

[Driver8]

Jess what year and make are the cars? Did you install them dry? Did you torque them to spec?

[jess p]

My 76 911s and my bastardized 912 V8. I tightened them as tight as I
could by hand.

[Driver8]

Jess there is a specific torque value for those bolts. I am on the road and don't have access to my manuals I'm sure some one will chime in with the correct torque value. I would also recommend installing new bolts, with no lub or loc-tite, that should fix the problem.

[Shaun @ Tru6]

do you have the half moon plates and schnoor washers?

[Grady Clay]

While very long, this is the definitive thread on this subject.
Reconstructing Constant Velocity (CV) Joints
It is worth reading completely.

Best,
Grady

[Jeff Hail]

The 914 Underdogs got part of the problem "wired" as far as the bolts are concerned. Cost is cheap and the fix is race proven .

http://www.914world.com/bbs2/index.php?showtopic=54963

[North Coast Cab]

I've had some of those issues myself in the past. There is lots of good reading, but here are a few of my basic tips.
1) Inspect the flanges. If a few backed out it is very possible the holes were deforemed and therefore will not stay tight again
2) Clean, clean, clean. Use a q-tip to clean all the threds and holde where the bolt goes of grease prior to torquing.
3) Use some locktite
4) Wire tying will keep them from falling out, but will not keep them tight.
5) Check them often

[cgarr]

Originally Posted by Jeff Hail

The 914 Underdogs got part of the problem "wired" as far as the bolts are concerned. Cost is cheap and the fix is race proven .

http://www.914world.com/bbs2/index.php?showtopic=54963

+1 The only way to go, you got it!!

[iamchappy]

Safety wires when installed correctly will not loosen, they tighten against each other as they try to loosen...

[hcoles]

my setup is for a stock 89 - I cleaned the threads and surfaces very well, put never seize on the threads, torqued to spec. then put marks using a paint pen across the bolt head down to the "washer". Then you can inspect to see if there is any movement. 10k miles and 5 track days... so far so good.

[Porsche_monkey]

Did you use a loctite cleaner first? Loctite is useless if the bolt or the hole is greasy.

You should not have to use red loctite, blue should be fine.

[jess p]

Thanks for all the advice. I think I'll use safety wire

[RWebb]

safety wire is not needed if you install them correctly to begin with

there is also the possibility that the hole may make the internal wrenching feature (the allen key female part) less strong -- it is already troublesome in stock form

and ther is the hassle of drilling the frickin' bolts -- unless you find some A/N std. bolts with holes already there

All in all, I consider drilling the holes to be something done for cosmetic reasons or by those who don't understand how to install them correctly

[Blk95993]

Had this happen twice. Good advice and thanks for posting. Feedback will help me as well post engine drop.