So I bought this thingy

[pdiggitydogg]

http://www.motiveproducts.com/images/Import%20Power%20Bleeder-Small.JPG

Its a power bleeder that you can connect to the mc, pump it up, and it pressurizes the system so you can bleed your breaks youself. (It can also be made to do other things...its just a pump)

Anyways, so I tried using it when I did my rear disc changeover, followed the directions and the thing leaked like a sunken ship.

Now, I know the reason is because the "cap" isnt really designed for hondas (those euro car bastards get a fit threaded cap though), it just sits on top and the sides have holes for J bolts and wing nuts that hold a chain on the bottom of the MC to create a seal. Clearly it doesnt work.
Before you ask "is there a rubber piece in there?", the answer is "No". Clearly a rubber gasket cut out to the size of the cap would help.

Im thinking, however, of something a little more.......special.

My idea would be to take a stock honda mc cap, remove the floaty and wiring, and drill a hole in the top for a nipple to accept the hose from the pump.
If I used industrial teflon tape, and melted some plastic around the hole, do you guys think that the custom cap could take the pressure? To get a decent flow the system must be pressurized to at least 15psi and 20 in some cases I read.

[AzCivic]

that sounds good. or just some good gel type super glue.

[pdiggitydogg]

think regular old silicone would work?

[ICUDOUCME]

Silicone probably won't work. Here is why. The silicone does not like to have chemicals touching it. By chemicals I am referring to break fluid, antifreeze and such. I would stay away from silicone and super glue.

[sicones]

why not just get the old vacum pump and pump it out, return that peice of shit at once
your idea sounds good though, where you gonna get a mc cap from

[pdiggitydogg]

well...I just bought an itr mc and bb (woo 1")
Looks like I'll be doing the rubber grommets and additional Jbolts+chains idea instead...because a new itr cap is $20 and I am not going to cut into one of those
(If the mouths are the same size I will use the civic cap instead...but I doubt they will be)
I had originally planned on just searching around for someone parting out a totalled civic and buying their mc cap.

Once I install the itr bb/mc I will be selling the ex/si set so anyone looking to do a rear disc conversion in a hatch should hit me up

Oh, one more thing:
What are the hard line diameters? Im going to need to do some reflaring and rebending of lines because of itr mc having 1 line mounted on the opposite side.