This is a read-only archive of the old Madabout Kitcars forum. New posts and replies are no longer possible, but every thread is still here to browse and read.
My Ford Sierra master brake cylinder is leaking ( fitted to dual brake booster) , struggling to find a replacement, everywhere is out of stock for Cifam ( 202-099) or Metelli ( 05-099) , its the 22mm bore , TRW have equivalent PMH173 but at cost of 260, of course has to fit adaptor plate, did anybody use a different type that fits the adaptor plate and the tight space available
This is interesting as my Sierra Brake Master Cylinder bought at the same time as yours has also failed.
And like you I searched far and wide to find a direct replacement without success.
I have bought a repair kit containing several seals and hope this solves the problem.
Mike
yes I had discovered that one , was a bit wary because the photo did not look too much like the original Cifam model, but maybe its just a generic photo . Anyway I don't fancy the master cylinder rebuild route and have taken the plunge and brought the ebay. I will let you know how I get on. It's concerning the otherwise across the board unavailability.
I am concerned about the failure, it was leaking brake fluid back into the booster, hope its not going cause any issues with the booster.
Mike
yes I had discovered that one , was a bit wary because the photo did not look too much like the original Cifam model, but maybe its just a generic photo . Anyway I don't fancy the master cylinder rebuild route and have taken the plunge and brought the ebay. I will let you know how I get on. It's concerning the otherwise across the board unavailability.
I am concerned about the failure, it was leaking brake fluid back into the booster, hope its not going cause any issues with the booster.
I will be interested to hear your feedback. It’s a job that’s on my preventative maintenance list too and I also found the OE 22mm bore master cylinders are out of stock everywhere. I suspect that for those alternative parts the brake pipes may need re routing as the side bosses could be facing the outside of the car. Not a major problem, just a bit of extra work. Also worth checking that the bolt holes in the mounting flange are the same pitch or you will need to modify something there. Finally worth checking that the depth of the rear piston hole ( relative to the flange face) is the same as your existing one, to ensure that the servo plunger has the correct clearance to work correctly. Peter.
I suspect the new Sierra master cylinders from kit parts (featured above) are likely to have m10 connectors for the pipes, and it's worth checking with kit spares to ascertain the bore size.
It's worth looking for alternatives which are readily available - with a bit of research I was able to replace an escort mk2 servo (on a Rickman Ranger) with an alternative used on LR Defender. Minor changes I made to the Escort pushrod meant the job took just an afternoon. Cost of servo was 63 pounds 4 years ago. OEM manufacturers won't change parts when they sell them to different manufacturers unless it's absolutely necessary (cost) so the only change may be a part number!
So I received the Ebay Borg & Beck master cylinder which I was unsure about due to the photo not looking like the Cifam model. However holding the two against each other it appears to all intents identical, although I have yet to check the piston arrangement. One small bonus is that based on its very light weight it must be made from aluminium rather than steel. Will let you know if it fits next week !!
A quick check with a magnet will show if your new master cylinder is dural or steel. That said the wheel cylinders on my drum / drum braked Classic are steel on the front and dural on the rear.
So I received the Ebay Borg & Beck master cylinder which I was unsure about due to the photo not looking like the Cifam model. However holding the two against each other it appears to all intents identical, although I have yet to check the piston arrangement. One small bonus is that based on its very light weight it must be made from aluminium rather than steel. Will let you know if it fits next week !!
Hi Nigel. Have you done any checks yet? Photos of both old and new would be useful when you have time. Peter.
Hi Peter
I bought the same one - it is a direct replacement: albeit a generic body which allows the ports to be LHD or RHD - obviously these are for RHD.
I bought one in case my original can not be resurrected with a new seal kit.
Hi Mike.
Yes I have now bought the same, for the same reason. With the dual servo fitted the master cylinder is further forward so the front unused boss will foul the bonnet. If it is completely solid it could probably be machined off?
Regards. Peter.
Hi Peter
I have offered my MBC up to the old one and am certain mine will not foul.
You could fit a thin spacer between the servo and firewall on the two offside mountings, angling the MBC towards your engine to prevent fouling the bonnet side.
Hi Peter
I have offered my MBC up to the old one and am certain mine will not foul.
You could fit a thin spacer between the servo and firewall on the two offside mountings, angling the MBC towards your engine to prevent fouling the bonnet side.
Hi Mike. Yes I had considered that but I don’t like the misalignment that causes, even if a ball joint clevis is used. If you put a wire down the opposite port it only goes half way across the cylinder so I am pretty sure the redundant outer boss is solid. If it could be Xrayed it would confirm that immediately! Peter.
Hi Peter
Later chassis - like mine - had the face of the pedal box angled to achieve this from the factory - hence why I don’t have a problem.
You will be fine with a couple of spacers particularly if you have a rose joint to accommodate the minor angle change.
PS
What is the matter with this site? It only accepts one line of text on the original post!
So I received the Ebay Borg & Beck master cylinder which I was unsure about due to the photo not looking like the Cifam model. However holding the two against each other it appears to all intents identical, although I have yet to check the piston arrangement. One small bonus is that based on its very light weight it must be made from aluminium rather than steel. Will let you know if it fits next week !!
Hi Nigel. Did you ever fit this master cylinder? If yes, what were your conclusions? Mine is still sitting in its box until another project (on another car) is completed! Peter.
Sorry to slightly hijack this thread but it is related......
With the surprise that the, once common, Ford Sierra Brake Master cylinders are now so difficult to find has got me wondering what other Sierra parts are now difficult to find.
Has anyone found any other parts are now in short supply?
