Master Cylinder Plastic Reservoir Wobbly

Hey folks,

I searched and found a gazillion hits for “Master Cylinder”. I searched further and did see this mentioned....


The plastic top reservoir of my MC is a bit wobbly, side to side, from the metal base.

I would say it moves about 1/16th or less if that. Definitely loose.

I do not have any leaks.

Is this normal?
Is there a way to tighten it up?
Is anyone else’s loose?

Thanks

 

Normal

 

nope, wobbly

 

Huh??

 

wobbly

 

So you’re saying yours is wobbly too and that it’s normal?

Thanks

 

If it's not leaking, it's fine. I believe they're mounted on rubber bushings.

 

OP, there are two rubber O-ring like seals on the bottom of the reservoir that seal the reservoir from leaking at the aluminum M/C. I had them leak one time on another truck and had to replace them. For vacuum assisted brake control trucks (non ATRAC) they are available as spares.