Does your Master Cylinder cap leak?
#1
Pro
Thread Starter
Does your Master Cylinder cap leak?
I find that I have to wipe up brake fluid off of the area around the master cylinder resevoir after every session. I do not over fill my m/c and I put on a new cap, but it still sprays some fluid out of the fill cap.
Are there any tricks to tighten down the cap? I have heard of people rubber banding a rag around the cap, but to me that is a fire risk.
Thoughts or solutions?
cj
Are there any tricks to tighten down the cap? I have heard of people rubber banding a rag around the cap, but to me that is a fire risk.
Thoughts or solutions?
cj
#2
Team Owner
Member Since: Sep 2003
Location: Raleigh / Rolesville NC
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Only fill the MC 1/2 way beteen the center seam and the FULL line.
Do not fill to the FULL line.
Hot brake fluid expands
also zip tie a small rag around the MC cap to absorb any spilled brake fluid
Do not fill to the FULL line.
Hot brake fluid expands
also zip tie a small rag around the MC cap to absorb any spilled brake fluid
#6
Pro
Thread Starter
#7
Race Director
Are you sure it's not spraying out of the back of the M/C? That'd be bad seals in the M/C for my year.
#9
Drifting
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I took a Mobil 1 quart bottle and cut the front off. Cut a piece the shape of the m/c cap out of the platic from the bottle. It must just fit inside the cap. Place it between the cap and gasket. It works like a shim. It isn't overly tight but provides an little more force on the cap.
Try it, it just might work for you.
Bob
Try it, it just might work for you.
Bob
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#12
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C3 of Year Finalist (stock) 2019
C2 of Year Finalist (stock) 2019
I took a Mobil 1 quart bottle and cut the front off. Cut a piece the shape of the m/c cap out of the platic from the bottle. It must just fit inside the cap. Place it between the cap and gasket. It works like a shim. It isn't overly tight but provides an little more force on the cap.
Try it, it just might work for you.
Bob
Try it, it just might work for you.
Bob
I cut out an oil jug into a gasket, put it in, and the cap feels tighter already. I'll know if it works after my next drive. Fingers crossed.