Hay, I have megan racing coilovers and the top bolt keeps getting loose. Does any one know what the spec's are for them?

 

Loctite blue FTW! Sorry don't know just thought I would throw that in there.

 

If a self-lock nut comes loose, REPLACE it. Nyloc nuts are good for one use only. Never reuse. Bilstein said 25 on the rears, and 45 on the fronts ( LBS) Depends on the manufacturer. Megan should have included it in the spec.

There are other solutions. Safety wire is the old standby. There are better lock nuts than nyloc. Look in McMasterCarr

 

There is only one and its not a locking one.

 

I think the problem is then quite clear. I would recommend something like a Stover or Flexloc nut. If you don't want to buy 100 of them from McMaster , check out someplace like Spruce Aircraft.

 

If you want the actual specs what your supposed to do is get an impact gun, run it to 100lbs of pressure. 2 seconds on that top bolt. Sounds unsafe but thats the right way to do it.

You can use loctite and lock nuts, but when you try to tighten it or unassemble it, the shaft will just spin.

 

No and no. There is an Allen socket inside the end of the strut shaft. You hold it with an Allen wrench while you torque the nut. For the fronts, I made my own flat-side socket to get down into the recess. Impact guns have totally unpredictable torque. They should never be used for final torque of a bolt.

 

Well I figured all coils are the same. Not all of them come with a hex at the top. For example cross coilovers 100psi 2 seconds with impact gun.

Anyways I like your screen name. I used to own a TVR Griffith. (I mean if that is what your SN means)

 

OOOOh. How did you get one legal down here? I only saw the ones that came down to Woodwork from Canada.

74 M, Ford Motorsports 5.0 GT-40 longblock, C4 auto, Jag 2.88 posi rear. Had it just about done but it got just too hard to work on cars, and the short doors were too tough on my knees, so I bought the Mini.

I guess some companies don' respect the mechanic and cheep out and do things like no Allen recess. Bilstein is nice enough to provide the Allen. Of course, they used larger nuts so I wound up grinding flats on TWO sockets. I still would NEVER use a impact to snug them. Like I suggested, pick a modern interference fit nut of good quality. A member of the Morgan club (Yea, had a +4, and an A, and a Spit. Proof I am really really sick.) was a hardware engineer and swore by Stover nuts. Look in places like Spruce Aircraft to find quality hardware. If folks out there don't know them, they are the big supplier to home-built aircraft. Quite good prices. Think Jegs or Summit for planes. They have pre-drilled nuts for safety wire too. If everyone is not familiar with safety wire, something else you should learn about. Easy and cheap.