M211 MC vent size

[firefox]

Any one know the diameter and threads of the vent fitting that screws into the
top of the Master Cylinder Cap. My truck is in the next town over and I want to make
up a power bleed system for the brakes.
Thanks,
Bruce

 

[butch atkins]

not sure what you want ,but straight from the ORD 9 G-749 catalog,Bolt: with vent hole 1/2 20 UNF-2 x 1 15/16 (filler pipe), item #2 ,FITTING : cop - alloy,5/8 dia bolt hole at top,7/16-24NF-2 female pipe thread at side connection,(filler pipe cap ), hope this helps,good luck on your project

 

[FireFighterHill]

Read any of the numerous power bleeder or brake fluid remote reservoir threads and you will find your answer

 

[firefox]

Thanks a bunch!!!
Bruce

 

[firefox]

It doesn't look like any of the M211 set have made power bleeders. My guess is to make a 1/2 inch bolt out of a steel tube to emulate the existing settup and then cut a hole in the side of the tube as well as connect a tube to the head of the bolt that goes to the power bleeder tank.

Also needs to incorporate a cap as well of some kind.

The following might be easier to implement:
1-steel 1/2 inch large thick washer large enough to cover fill tube
2-drill hole off center to allow a tube to go into the fill tube and down into the resevoir without interfering with the 1/2 inch bolt head. maybe use a 1/2 inch allen cap screw.
3- braze or siver solder tube in place
4- glue some gasket material on underside of washer
5- attach tube to hose going to pump thingy.

Bruce