Brake Master Cylinder Advice

[Mad Professor 7]

Good day all.

 

I am looking for some advice with regards to getting a new brake master cylinder for my 1990 GRD.

 

The old brake master cylinder was made by "Ate" and the only other marking I can make out is "19".

 

Now I have just gone to "SES Autoparts" to buy a new brake master cylinder.

 

I have even SES the car full Reg, the date of manufacture, and told them it's a "Ate" brake master cylinder.

 

I have been supplied with a new brake master cylinder in TRW branded box, Part Number: PMD188.

Inside the box is a Lucas brake master cylinder, and stamped on it is 18612T.

 

This is already starting to ring my alarm bells, so before I left SES, I asked them to confirm this is the right item.

 

I even should them my old "Ate" unit, as I had removed it, and brought it with me.

 

The sales guy confirms that PMD188 is the right replacement part for my car.

 

I then noted that the end of the brake master cylinder, that presses on the plunger in the Servo is not the same size.

 

Old "Ate" brake master cylinder, ID: 10.64mm, OD: 13.96mm.

 

New brake master cylinder, ID: 13.67mm, OD: 16.96mm.

 

So I now have this new part, that is not the same as the old part.

 

The sales guy at SES looked on his computer for aprox 10-15mins, but looked very confused, and ended up just saying fit it and see.

 

So I have now spent £64.27 + vat (£77.12), On a part that I am not sure is right or fit for the job.

 

Can any one please advice?

 

Thanks for your time.

 

Best Regards.

[welshpug 1,646]

I'm not sure what diameters you are measuring but standard diameters are 19 or 20.6mm items.

 

brands matter not as long as they fit, I have used several from GSF boxed as Bendix Girling and Bosch for under £40, probably more expensive these days as it has been a while, and you often get better prices in your local branch

 

http://www.gsfcarparts.com/652re0270

 

personally I would take it back if possible and get one of the above, I guess you suffer from Island tax?

Edited May 7, 2013 by welshpug

[Mad Professor 7]

welshpug: Thanks for your reply.

When they go on about 19mm or 20.6mm what part are they on about.

 

Any pictures and or diagrams?

 

Best Regards.

[Anthony 1,002]

Refers to the internal bore of the MC. Base models are 19mm, GTi are 20.6mm.