Diaphragm vs. Piston

[Modderxtrordanare]

what about those flotation pool noodle thingies? they might be 3" tho

Those are porus and air will leak through them. (very slowly)

[rednecktatertosser]

I think he meant to fll the piston with foam, not to use as a piston

[Gepard]

I think he meant as a bumper.....

Michael

[Modderxtrordanare]

Then why not just use some of that expanding foam in a can? Like GreatStuff or something.


Edit: For a bumper? You could fold over a short piece of hose and stick that in the back. It would work just as well. Or you could still use expanding foam.

[rednecktatertosser]

I brobably cause that expanding foam will be wasted by getting played with , not so much with the pool noodles.

[schismatized]

i think that expando foam would be great as a bumper. ill have to try that

[Gepard]

Not too sure. Generally once it's squashed it doesn't expand back and stays solid....

Michael

[Pyro Ninja]

Just one question: can I use bike tyre tube for a 15mm diaphragm coaxial?

[hi]

Just one question: can I use bike tyre tube for a 15mm diaphragm coaxial?

yes, but it would be better to find some thing thicker. if you do it would probably be best to put it between a union. thats my opinion.

[schismatized]

Not too sure. Generally once it's squashed it doesn't expand back and stays solid....

Michael

this occurred to me.. i guess my search for a bumper continues.

[hi]

i guess my search for a bumper continues.

just cut one off a car you idiot. just kidding

maybe a couple of half tennis balls would do, but im not sure.

[noname]

Pyro Ninja, it's very likely that it will pop. Use some thick sheet rubber.

[Modderxtrordanare]

Not too sure. Generally once it's squashed it doesn't expand back and stays solid....

Michael

this occurred to me.. i guess my search for a bumper continues.

If you "obtain" one that fits on a 1987 chevy pick-up, PM me.

kidding.


Edit: We filled up a bottle full of the GreatStuff foam, and when it cured completely, we could squish it and it would form back to its shape. I see no reason not to atleast try using it. It will still after all impart some of the forces contacting the piston's rear and still serve its purpose as a bumper just fine.

[schismatized]

i actually found a chunk of gum rubber in my garage. i think once i cut it down it will work good.

[chaos]

just to clear up my last post... yer i ment use a foam noodle as a bumper, they do compress and re-expand, and a whole noodle is like $3