6 replies to this topic

[ksj]

I'm interested in converting my front brakes from drum to disc with one of MiniSpares' kits. Is there a way to determine whether my current system is diagonal or front-rear without crawling under the car?

Hope this isn't a stupid question. I have a medical condition that makes it uncomfortable for me to lie  on my back.

Joe

1979 998 Saloon

[unburntfuelinthemorning]

Lift the bonnet and you should be able to tell by looking at the brake pipe arrangement. 

 

For instance if it's front-rear split then a pipe will go down from the master cylinder to the offside front wheel and then another pipe will link that to the nearside front normally by running around the front subframe crossmember.  An additional pipe will travel from the master cylinder and disappear down the bulkhead and under the car for the rear brakes.  The pipes will probably travel via a brake proportioning valve on the bulkhead too just under the master cylinder. 

 

You should see all this from above.  I think yours will be like this being a '79 model. 

[cal844]

My 80 reg Clubman Estate is front and rear split, my 89 is the same

[Ethel]

Follow the line From the master to the offside front wheel connection on the subframe and see if there's a link pipe going round the front of the frame that also feeds the nearside front.

Also, if you can see a pressure regulator it'll not be diagonal.

[Spider]

As Ethel mentioned, If you have a Tandem Master Cylinder, Diagonal Split don't have a Pressure Regulator.

 

These, if fitted, in a car of your era, are usually below the Master Cylinder on the bulkhead.

[ksj]

Thanks for the advice, guys. I checked under the bonnet and can't well see all of the lines. My car does have two splitters, one on each side of the firewall. There is no pressure regulator.

Joe

[Spider]

Thanks for the advice, guys. I checked under the bonnet and can't well see all of the lines. My car does have two splitters, one on each side of the firewall. There is no pressure regulator.

Joe

 

Sounds like you had Diagonal Split type set up.