Originally Posted by peterux
When I was installing my dual diaphragm brake servo I noticed that the pedal box side deforms and twists when I press my clutch.
My pedal box uses the BMW e30 clutch master cylinder.
I'm thinking of adding a supporting bracket on the battery box similar to Ian Morris' installation....
Can you get a picture of where yours has failed?
The weld around the tube the pedal bolts through has given way also the only strengthening brace has buckled.
Not a good picture but I hope you can get to see the issue.
I have sent it away to be welded and have some extra strengthening fillets fitted if it still flexes when i refit then I may well look at Ian's resolution.
I have also now ordered a BMC4052 Master Cylinder through Brakes International bargain at £38