Vacuum leak from master cylinder?

I'm not sure. I might - will have to dig through the spare parts bins. I think last time I poached one from a junker, one is all I got. Anyone else have one laying about?

 

I know it’s an old thread, but I have the same issue. What was the solution, Ken?

 

Brad,
you might contact Steve in Calf, he rebuilds them and he might have the seal??? I put a link below.
Nelson


https://brakeboosters.com/index.htm


.

 

Thank you, Nelson, much appreciated!

 

A new seal is on the way.

 

I got the new seal in the mail today. Took about five minutes to re and re the seal. No more leak! It’s amazing how much quieter it is under the hood now.

Thank you all for your help. This board is the best!

 

Here’s the old seal. Yikes!

 

Be sure to lightly lube the replacement seal at the pushrod hole to prevent binding and more damage.

 

They sent it to me in a ZipLock baggie already lubed.