Brake master cylinder question
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Joined: Dec 2013
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Brake master cylinder question
1990 1.6D Jetta.
Just bought new brake master cylinder. I noticed after installation that the old master cylinder had a small black plunger like piece that was located inside one of the two holes into which the reservoir is mounted. What is the purpose of this piece? Is it to keep foreign material from entering the fluid passageways during shipping? Or is it necessary for proper functioning of the master cylinder.
Thanks
Tim
New at this
Just bought new brake master cylinder. I noticed after installation that the old master cylinder had a small black plunger like piece that was located inside one of the two holes into which the reservoir is mounted. What is the purpose of this piece? Is it to keep foreign material from entering the fluid passageways during shipping? Or is it necessary for proper functioning of the master cylinder.
Thanks
Tim
New at this
Super Moderator
Joined: Sep 2009
Posts: 2,648
From: Stoke on Trent, England
Welcome to the forum Tim. 
I'm not sure what you mean can you post a picture?
https://volkswagenforum.com/forum/ne...gnature-34185/
I'm not sure what you mean can you post a picture?
https://volkswagenforum.com/forum/ne...gnature-34185/
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