inlet/exhaust manifold

[ampwhu]

i would like to fit a servo to my car to improve the brakes a little. i know that there is a hose to the inlet manifold for this to work, but mine doesn't have anywhere for it to fit.

do i need to buy a manifold with this adaptor and which car should i get it from? if not, is it possible to drill a hole for this?

i've seen a minor manifold on ebay, but the studding for the carb looks to be at the wrong angle?? meaning the carb would sit sloping towards the bulkhead.

thanks

[PSL184]

Just drill and tap yours (off the car) for the servo take off stub pipe.

[ampwhu]

Just drill and tap yours (off the car) for the servo take off stub pipe.

would you happen to know the size?

[PSL184]

I don't know if they are standard sizes so best get the stub pipe first then measure it.... Unless someone knows for sure....?

[bmcecosse]

First off - why not just FIX the brakes ? Minor brakes in good working order are very good - and don't need a servo! These cars were designed for 'little old ladies' to drive! A servo doesn't make the brakes any 'better' - it just drops the pedal force slightly. But good brakes don't need a hard push on the pedal anyway! If you really feel you MUST have a servo - you will have to repipe the back brakes so they are fed from the front brakes - so everything goes through the servo - and you will have to blank off the then unused back port in the (hard to get at) master cylinder. It's a bit of a job - the servo vacuum tapping is the least of the job! It will be much easier and cheaper - and better in the long run - to just overhaul the brakes with new cylinders if required and new linings!

[mike.perry]

To take advantage of a servo you need hard brake linings, otherwise you will just get a squashy brake pedal and little significant improvement

[ampwhu]

First off - why not just FIX the brakes ? Minor brakes in good working order are very good - and don't need a servo! These cars were designed for 'little old ladies' to drive! A servo doesn't make the brakes any 'better' - it just drops the pedal force slightly. But good brakes don't need a hard push on the pedal anyway! If you really feel you MUST have a servo - you will have to repipe the back brakes so they are fed from the front brakes - so everything goes through the servo - and you will have to blank off the then unused back port in the (hard to get at) master cylinder. It's a bit of a job - the servo vacuum tapping is the least of the job! It will be much easier and cheaper - and better in the long run - to just overhaul the brakes with new cylinders if required and new linings!

the brakes work fine at present. infact, 100% spot on. i have silicone fluid as well. i have driven a car with a servo fitted and it's a hell of a difference. it also means the wife will be able to drive the car.

[bmcecosse]

Oh well - carry on!! Although i suspect your problem lies with the silicon fluid - there is a good reason it's not fitted to new cars! The standard vacuum connection is 5/8" UNF - although they also seem to make one for 1/8" BSPT - where no tapping exists.

[billlobban]

If you fit a servo the advice supplied with the servo is do NOT use silicon fluid (dont know why)
Also do NOT buy one of the cheapo kits you get what you pay for (see my previous posts about cheap copy servo problems)