2 replies to this topic

[bobcrumble888]

Hello,

 

A 1979 1275gt Clubman.

 

I have stripped down my brake master cylinder to replace the seals. Not the easiest of task when trying to read a Haynes Manuel that doesn't have a enough detail to be confident in what your doing if you haven't done it before. But anyway i managed to strip it right down without major issue...

 

Apart from, the Pressure Failure Switch piston was very tight to get out. Eventually i managed it but in the process pulling it out through some of its O-rings. now my issue is putting it back together. 

 

Not sure what order the O-rings go in and the repair kit i bought came with to many O-rings.

 

I've tried to supply the best pictures possible.

 

Any help would be great.

 

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Note: Cap head bolt shouldn't be there, thats when the electrical connection should be but i broke it 

 

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Note: Piston should be facing other direction.

 

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[Spider]

There were three different shuttle pistons (19 in the drawing above) used during production. The one in the cut-away drawing is the early type and it looks like you have the last type. They supply O Rings in most kits to cover all types.

 

[bobcrumble888]

Awesome! Exactly what I was looking for! Wasnt expecting to get an answer so quickly. Lovely stuff