Hi Folks, This may seem like a strange question!
I am in the final stages of building a locost se7en and I am about to finish off the brakes. I am using what I presume is a Sierra master cylinder.
However it has 3 "holes" to connect the brake pipes up to. I am usung a dual circuit system and am not usung a servo. How do I do this?
Can I do this? Does one of the holes get blanked up?
Your help and comments would be appreciated.
Hi, welcome to the forum.
I am also using the Sierra type M/C and have used 2 of the 3 for the front and rear brakes. The one on the end (at the front) I have fitted with a
bleed nipple. I did that to help bleed the M/C when i filled the system.
Seemed to work fine for me.
HTH
John
BTW, it's not a strange question at all 
[Edited on 2/4/11 by Daddylonglegs]
Welcome to the madhouse. Front two holes used for offside and nearside brakes. Rear used for back brakes with a tee-piece at the rear to split offside
& nearside.
Phil
3 Holes... 2 for the front, one for the back. OR 1 for the front, 1 for the back and one for the back light switch...
Do you need help connecting it up to the brake pedal as well?
Oh bugger! Does that mean mine needs re-doing then Phil? 
deffo 2 for the front one for the back the brake pressure switch can go in any line and as Phil Says the back splits via a T Piece. Fronts are on seperate circuits
quote:
Originally posted by Daddylonglegs
Hi, welcome to the forum.
I am also using the Sierra type M/C and have used 2 of the 3 for the front and rear brakes. The one on the end (at the front) I have fitted with a bleed nipple. I did that to help bleed the M/C when i filled the system.
Seemed to work fine for me.
HTH
John
BTW, it's not a strange question at all
[Edited on 2/4/11 by Daddylonglegs]
On my old sierra setup I ran one port to the rear (via a T Piece) and one each to the fronts.
HTH
Dan
Brilliant!!! It all becomes clear!!
Thanks for your help everyone, I shall let you know how I get on. An trying to get it ready for an autotest in 2 weeks time. Ithink I might be
being a bit optimistic though!
BTW. Is there anywhere on the forum to upload photo's of your build?
Photo Archive?????
Just have a wee gander at the top of the page
U2U | Member List | Search | Photo Archive | Chat | Links | Shop
seeeeeeemmmm's to be up there
Cheeky am I not !!!
Len.
I have actually got the rear hole connected to the pipe off to the rear end then split via a 'T' for the rear brakes, then the middle hole
connects off to a 'T' which splits off to left front and right front. The very front hole is the one I have fitted with a bleed nipple.
It's a relatively straight forward job to change so the left goes to one of the front holes and the right to the other, so I think I will do that
tomorrow as it seems to be the correct way.
Thanks guys.
It makes no practical difference whether you have the two sides connected to one master cyl' outlet (and the other blocked) and then split via a T peice, or seperatly to the two adjacent outlets. The only difference is 2 extra brake pipe connections at the T piece to leak if you get them wrong with it one way and another length of pipe to locate the other.
So I assume then that the way I have it connected is OK?
Apart from being a little confused by you saying "middle hole"... I think so. A picture would confirm.
It's just a packaging choice as to which way works best for for you with the choice of pipe runs in practical terms.
quote:
Originally posted by adithorp
It makes no practical difference whether you have the two sides connected to one master cyl' outlet (and the other blocked) and then split via a T peice, or seperatly to the two adjacent outlets. The only difference is 2 extra brake pipe connections at the T piece to leak if you get them wrong with it one way and another length of pipe to locate the other.