Building a manual boost controler

[Andrew7dg]

Has anyone ever tried this and made it work? I am trying to make one. I bought a 1/4" ball barring and was at a hardware looking at the brass fittings. I found a brass T and on the package it said It had an ID of ¼” but when I put the ball barring in, it had way too much space between the fitting and the ball or that’s what it seemed like to me. Just curious if anyone has gotten this to work. Thanks!

[Andrew7dg]

Just realized that it would probably help if I showed everyone what I am trying to build

http://www.geocities.com/chmwatson/FAQs/mbc.html

[scheides]

Try filling it with RTV.

[slowbubblecar]

My brother made one and it works perfectly. He used something different than an allen head to turn it in and out though so it could be done by hand.

[Andrew7dg]

Just out of curiosity where did he get the parts for his? Or what parts did he use? I went to the hardware store and they didn't carry those specific parts.

[slowbubblecar]

He works at an ace hardware and just grabbed them off the shelf. I am not sure what exact parts he used though. He isn't on here much anymore.
James

[blageo23]

But from the looks of it the ball never sees the inside of the T fitting but it sits in the nipple fitting which would be smaller then the t fitting. And all its doing is plugging the little hole so that its harder for the boost to get throught to the WG.

[Andrew7dg]

Ok so that makes more sense. For some Odd reason I thought the ball had to clear the other opening. So really I don't have to worry about the space around the ball and making sure it is a tight fit. THANKS!!

I will go to a hartware store soon and try this out with this in mind.

[sleepydsm]

I too have considered machining my own MBC, from scratch, for the fun of it. The only thing I couldn't make would be the ball bearing.

[Andrew7dg]

http://dsmstyle.com/forums/images/smilies/biggrin.gifa whole $.10 at a bicycle store