Good afternoon all

I think i may of made a bit of boo boo! I purchased a master cylinder from cbs thinking it would do the job, however what i didn't do was read the iva manual prior to my purchase! It would appear that iva states the front and rear braking systems should be separate systems incase of failure, however my master cylinder only has one outlet so I'm thinking that it may be for a balance bar assembly? This wouldn't be a problem as i could just purchase a non-servo m/s, however as you can see by the attached image of my bulkhead, fitting a different m/s would be a no no as most that i have seen have the fixing holes horizontal unlike mine which is vertical so i would never get it to fit because the steering column bearing housing. The last thing i want to do is start re-jigging the bulk head so does anyone have any other suggestions?

Many thanks for any input received.

Regards
Leon


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[Edited on 17/10/12 by leon51274]

surely theres a twin port type with that mounting configuration?

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Originally posted by maccmike
surely theres a twin port type with that mounting configuration?

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Hmm, I've got a master cylinder with vertical fixing holes available if that's any use? Needs a remote reservoir though.

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Originally posted by rodgling
Hmm, I've got a master cylinder with vertical fixing holes available if that's any use? Needs a remote reservoir though.

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It's this one, unused:

http://www.rallydesign.co.uk/product_info.php?cPath=562_582_583&products_id=4048

Also have a similar but faulty 0.625 one (I suspect leaky seals which could be replaced).

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Originally posted by rodgling
It's this one, unused:

http://www.rallydesign.co.uk/product_info.php?cPath=562_582_583&products_id=4048

Also have a similar but faulty 0.625 one (I suspect leaky seals which could be replaced).

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No problem - presumably you could use two master cylinders with a non-adjustable balance bar, but I guess you would run out of space to mount them?

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Originally posted by rodgling
No problem - presumably you could use two master cylinders with a non-adjustable balance bar, but I guess you would run out of space to mount them?

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Non power assisted VW polo master cylinder? - it is of course twice as long! It is a 0.69" bore. I think the threaded ports are metric, but you should be able to look that up.
Here's one:
http://www.ebay.co.uk/itm/VOLKSWAGEN-POLO-DERBY-BRAKE-MASTER-CYLINDER-LM43311-NEW-/271080961401?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3f1d af3579

Regards
Hugh

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Originally posted by hughpinder
Non power assisted VW polo master cylinder? - it is of course twice as long! It is a 0.69" bore. I think the threaded ports are metric, but you should be able to look that up.
Here's one:
http://www.ebay.co.uk/itm/VOLKSWAGEN-POLO-DERBY-BRAKE-MASTER-CYLINDER-LM43311-NEW-/271080961401?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3f1d af3579

Regards
Hugh

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The port thread only matters if you already have the fittings to screw into them and they are not the same, in which case you may have to buy some new threaded ends to suit. They are usually 3/8 UNF if imperial or M10*1 if metric obviously the threads must match whats in the holes! - (I just looked at an old spreadsheet of bits I needed from the last time I went to the kit car show and it seems I was looking for m10*1). If the polo ones are no good, I'd probably try to find a master cylinder from a 80s/90s small base model car like a ford fiesta or a Rover metro, (rather than a Japanese/European model) as they are most likely to be imperial fittings and to not have power assisted brakes. you will have to find out what the bore is though.
Regards
Hugh

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Originally posted by hughpinder
The port thread only matters if you already have the fittings to screw into them and they are not the same, in which case you may have to buy some new threaded ends to suit. They are usually 3/8 UNF if imperial or M10*1 if metric obviously the threads must match whats in the holes! - (I just looked at an old spreadsheet of bits I needed from the last time I went to the kit car show and it seems I was looking for m10*1). If the polo ones are no good, I'd probably try to find a master cylinder from a 80s/90s small base model car like a ford fiesta or a Rover metro, (rather than a Japanese/European model) as they are most likely to be imperial fittings and to not have power assisted brakes. you will have to find out what the bore is though.
Regards
Hugh

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Yup
And I think one of the cylinders has a spare port that you can use for a pressure switch to operate the brake lights - If you can pick up the cylinder from a breakers you will probably only pay about a tenner including the switch and resevoir (if its an unbolt it yourself job)
Regards
Hugh

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Originally posted by hughpinder
Yup
And I think one of the cylinders has a spare port that you can use for a pressure switch to operate the brake lights - If you can pick up the cylinder from a breakers you will probably only pay about a tenner including the switch and resevoir (if its an unbolt it yourself job)
Regards
Hugh

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You should be using M10x1 metric fittings anyway, any car model introduced since about 1975 (with very few exceptions outside the USA ) will be metric.

The Polo cylinder has extra ports which will need blocked off with M10x1 bleed nipples or you can use one for hydraulic brake light you will also need to make up acustom push rod. Black bung fittings are for resevoir -- some Ford resevoirs fit but most Ford resevoirs are angled.

How about THIS ?

Are planning on remote reservoir?

Cheers
Davie

The Westfield one looks like it will fit:

Westy website

Not cheap though, but there is on on Ebay for £0.99 with no bids at the mo:

Ebay

Stu

I love the guys on here

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Originally posted by daviep
How about THIS ?

Are planning on remote reservoir?

Cheers
Davie

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Originally posted by whitestu
The Westfield one looks like it will fit:

Westy website

Not cheap though, but there is on on Ebay for £0.99 with no bids at the mo:

Ebay

Stu

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I would contact Westfield to ask if they supply a seal kit. Seems likely that one be available somewhere.

Well i decided to bite the bullet and purchase a new one direct from westfield.

Thanks for all the responses and recommendations guys, much appreciated.

Regards
Leon