Other: Acorn Nut

[Skybolt]

I'm not sure where this question belongs but I will try here.

If I swap the use of a bolt for a stud and use a cap/acorn nut what sort of washer do I use, considering the original bolt used a split, lock, washer?

I have used standard nuts and the original type of washer before when swapping to a stud but the question remains a bit of a puzzle as I have not done a swap to an acorn nut before.

[Pancho]

I would think Loctite.

[rockne10]

I believe an acorn nut is simply an nonabrasive trim nut. What stud are you replacing and why?

[Mike Van Veghten]

If you are talken rocker covers, just a flat washer. Mostly to protect the rubber seal.
That's all that's on my all stock 55 Conestoga.

Mike

[jclary]

I don't think it really matters much. The important thing is to make sure the stud is not so long that you don't get the clamping torque required before you run out of thread in the "blind" hole of the acorn nut.

[Skybolt]

I believe an acorn nut is simply an nonabrasive trim nut. What stud are you replacing and why?

I was thinking of using studs for the timing cover. I have heli-coiled the filler block but using studs will also insure less trouble in the future. This raised the question of protecting and also dressing up the stud ends with acorn nuts.

I guess that as they are first "nuts" and then have an end cover, so what ever should be used, like a regular spring lock washer, should be used. The valve covers have flat washers and no lock washer; therefore it dictates using a flat washer under an acorn nut, if used. I might have answered my own question. Len.

[Mike Van Veghten]

With the water manifold in place, you'll really only see the top four nuts.
The fuel pump's nuts are also be easily visable.

Either locking washer works in that location ok. Overall the star locking washer is better at locking things thAn the split washer. I'd use the internal star locking washer.
I'm going to use the internal star washers to hold my machined timing cover in place also.


This is another place Studebaker was smarter thAn most. It's pretty much a prooven fact that star type washer does a better job at locking things thAn the split washer. And Stude used them all over their cars.. Though the split washer is found in many areas also, the star is more used thAn in other brands.

Since you are going to use studs, another possibility is the various designs of locking nuts. You'll just need a flat washer in that case.
Hmm...may have just given myself an idea...! Thanks Len..!

Mike

[Skybolt]

Sure Mike, you just gave me another thing to contemplate. As I have not bought the hardware yet I will look into the internal star washers. Locking nuts, more to think of, thanks Mike, it is hard to stop thinking.

[sweetolbob]

I like John's idea, if this is what he's suggesting.

I use studs in as many places as I can including valve covers. If you can find shells that cover the nuts than you can use about any combo you want from star washers with std. nuts to Nylock nuts, then cut the stud off and add the cap. Most acorn nuts don't have a lot of threads to allow a reasonable amount of take up when tightened.

Just a "few" for your consideration https://www.google.com/search?q=chro...w=1310&bih=544

Bob

[SScopelli]

With the water manifold in place, you'll really only see the top four nuts.
The fuel pump's nuts are also be easily visable.

Either locking washer works in that location ok. Overall the star locking washer is better at locking things thAn the split washer. I'd use the internal star locking washer.
I'm going to use the internal star washers to hold my machined timing cover in place also.


This is another place Studebaker was smarter thAn most. It's pretty much a prooven fact that star type washer does a better job at locking things thAn the split washer. And Stude used them all over their cars.. Though the split washer is found in many areas also, the star is more used thAn in other brands.

Since you are going to use studs, another possibility is the various designs of locking nuts. You'll just need a flat washer in that case.
Hmm...may have just given myself an idea...! Thanks Len..!

Mike

Also may want to consider a thin flat washer (AN style) between the star/split lock washer when bolting aluminum pieces on. The locking mechanism tends to chew up the aluminum and it also gives a smoother tightening instead of binding.