[cockney21]

The rubber seal, grommet like moulding, has split on the one way check valve on the outside of my brake servo.

Do you think I can find anyone with one for sale. The car is a late S2 Spider and I think the servo is an ATE part. Thought I could just pick one up easy. Few hours on the net and a call to CA but no joy. Off to the London Classic car show tomorrow but don't hold out much hope of getting one there.

Any ideas? Every car for the last 50 years at least probably had one, just need to get on in the right size.

 

[spiderserie4]

mine just has a flat rubber washer, but I have the elbow connection that goes in and you tighten with a quarter turn.
Does your earlier type have a push in elbow?
If so, maybe something like the following part number? ATE 34336765316
EDIT: or even 34331158929 (both BMW parts with ATE system)

does yours look anything like this?
ATE 34336765316 Power Brake Booster Grommet

 

[cockney21]

mine just has a flat rubber washer, but I have the elbow connection that goes in and you tighten with a quarter turn.
Does your earlier type have a push in elbow?
If so, maybe something like the following part number? ATE 34336765316

does yours look anything like this?
ATE 34336765316 Power Brake Booster Grommet

Yes it does look very similar, not too sure of the dimensions, thanks for the lead.