Author Topic: Brake servo - later style  (Read 198 times)

Offline BruceK

Brake servo - later style
« on: August 11, 2018, 03:55:15 PM »
 I am replacing the brake master cylinder and servo on my Ď88   It originally came with the tall master cylinder without the sevro, but when I had the car built for me I wanted power brakes, so I had a post-89 brake servo and m/c fitted. But the parts were used and the m/c recently crapped out. I figured Iíd replace the old servo at the same time as the m/c, you know, the ďmight as wellĒ line of thinking. 

 The problem is that even with newer Mini parts, many of them are NLA too.   I like to replace that nylon colored valve that brings the vacuum hose to the servo (first picture) , but the part I got from MiniSpars a while back is definitely not the right piece.   Iíve  looked at the MS site for more info but canít find anything, Iíve also looked on the Minimania site, and the MiniSport site too.

 I donít know for sure if thereís anything wrong with the old valve but since Iím putting new parts on everything else Iíd rather replace that at the same time because itís at least 25 or 30 years old.

Anyone have one of these?
« Last Edit: August 11, 2018, 04:02:05 PM by BruceK »
1988 Austin Mini
2002 MINI Cooper S
2007 Triumph Bonneville

Offline BruceK

Re: Brake servo - later style
« Reply #1 on: August 11, 2018, 07:32:22 PM »
I was able to remove the piece from the old servo without breaking it and found out it is only a nylon 90 degree elbow piece.  Not a valve at all.   The valve function is handled upstream in the hose to the intake manifold.  I had forgotten the original valve was NLA and I had purchased a different style when I placed my order 2 months ago.  So I have all the stuff I need - and a brand new wrong type  valve I donít need and canít return.   So, ready to assemble as long as donít drop the nylon elbow price and break it. (I did and it didnít). Or step on it once it was on the floor (I almost accidentally did).  Too tired I guess.    Still itís another of those parts on our cars for which there are no replacements available. 
« Last Edit: August 11, 2018, 07:56:57 PM by BruceK »
1988 Austin Mini
2002 MINI Cooper S
2007 Triumph Bonneville

Online jeff10049

Re: Brake servo - later style
« Reply #2 on: August 13, 2018, 12:59:02 AM »
Fairly easy to make a replacement if needed though. A brass 90 with two different size hose barbs threaded in could be used.

Offline MiniDave

Re: Brake servo - later style
« Reply #3 on: August 13, 2018, 08:57:32 AM »
You can also find those 90's in plastic at your local auto parts store, they're fairly universal......
1989 Cooper Racing Green
2009 Clubman S
1969 Jaguar XK-E FHC
2004 Audi Allroad 2.7 TT

Offline BruceK

Re: Brake servo - later style
« Reply #4 on: August 13, 2018, 04:23:25 PM »
Good to know.  Thanks guys.

I've going to have to post a thread about the phenomenon of "might as well" or "as long as you're" that starts small, but leads to doing more and more things that were never part of the plan.
1988 Austin Mini
2002 MINI Cooper S
2007 Triumph Bonneville

Offline MiniDave

Re: Brake servo - later style
« Reply #5 on: August 13, 2018, 05:53:03 PM »
Whew......BTDT!
1989 Cooper Racing Green
2009 Clubman S
1969 Jaguar XK-E FHC
2004 Audi Allroad 2.7 TT