Pistons

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Postby MX_ » Wed Nov 08, 2006 12:09 pm

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by shadowscion
[br]Because 1 1/4" caps are not 1 1/4" OD, 1 1/4" PIPE fits inside of the 1 1/4" fittings, the fittings, are what fit inside of the 2" tee nicely, not the pipe.

Edit> Do not take my word that this would work, but I think it would, I am not an expert on piston valves, though.

<img src="http://img225.imageshack.us/img225/4539/tvalve2fu4.png">
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

I get how the whole thing is put together, I just don't quite understand what to use for a piston.
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Postby shadowscion » Wed Nov 08, 2006 4:12 pm

It does matter what you use as long as it can withstand being slammed around. Pvc stock, fittings, anything.
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Postby MX_ » Wed Nov 08, 2006 4:33 pm

Whats this about a bumper behind the piston? So when it slams backwards I guess it dampers the force done.


I'm going out and getting a 2" tee today, if I get a 1 1/4" end cap (rounded) can I use bondo and shape it so it has a flat face?

I'm thinking about getting two roundfaced endcaps, and a small section of pipe and make it so the end caps are touching. Then bondoing one cap so its flat. Would that work?

EDIT: Like this.
<img src="http://img460.imageshack.us/img460/2858/pistonpb0.png">

Sorry for the white space.
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Postby shadowscion » Wed Nov 08, 2006 4:50 pm

Yes the bumpers make it easier on the piston and the plug.

You could try bondo I guess, but first try it without the bondo, just the cap and neoprene might work.
If you use 2 endcaps you might aswell leave a gap in between them on the pipe and slip an o ring on them...
<img src="http://img462.imageshack.us/img462/6207/pistonuo2.png">
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Postby MX_ » Wed Nov 08, 2006 4:55 pm

<blockquote id="quote"><font size="1" face="tahoma,verdana,arial" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by shadowscion
[br]Yes the bumpers make it easier on the piston and the plug.

You could try bondo I guess, but first try it without the bondo, just the cap and neoprene might work.
If you use 2 endcaps you might aswell leave a gap in between them on the pipe and slip an o ring on them...
<img src="http://img462.imageshack.us/img462/6207/pistonuo2.png">
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
I've never really used neoprene. Where would I get it, and is it stiff, or flimsy.
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Postby shadowscion » Wed Nov 08, 2006 5:44 pm

Its stiff, depending on thickness, in the hardware department (bolts,nuts,washers) look for neoprene washers, they will have a hole in them but you need a hole anyway to attach it to the cap.
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Postby MX_ » Fri Nov 10, 2006 8:20 pm

I couldn't find neoprene washers or O Rings big enough to fit on my piston.

Does McMaster have any?
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Postby shadowscion » Fri Nov 10, 2006 9:25 pm

Probably thousands, I've never checked though.
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