[TR] Proper fill on a Triumph TR6 brake master res. - Leaking cap

[thenicholls at verizon.net]

Ok list, the fun just goes on.

New brake master cylinder, new servo, and new reseroir.  Went back to the shop the third time, and the servo is fine after a new hose.  They replaced the cap, said it was ok, and had fluid on it after the ride home.  About 30 miles.

Cleaned it up, cap on, drive Friday and Saturday, in the garage tonight working on another issue, no leak.  An hour later, walk past it and fluid is coming out from under the cap.  The cap is so tight that I have to use an oil filter wrench to get it off.

Needless to say, I am not a happy camper.  I took the cap off of my old unit, cleaned up the new, and put it on.  Sent a note to the shop labled "ball four".

List, it is not over-filled.  Why would the cap get so tight that it is difficult to remove?  Seems to me there is pressure in the system that is sucking the cap down onto it.  Is this possible?

I am really at a loss.

Thanks,

Craig 
1972 Triumph TR6



Oct 23, 2010 11:16:31 AM, yellowtr at adelphia.net wrote:

On Friday, October 22, 2010 07:57:39 pm thenicholls at verizon.net wrote:
> List,
> 
> You have heard my story about my brake system repair.
> 
> The shop put a new cap on the reservoir, and thought that was it.
> 
> So, easy question that is not stated in the maint. manual, how full should
> the reservoir be on a topped on newly bled system on the TR6. How far
> from the top lip should the fluid be, and if over that height, it would be
> "to full".
> 
> Thanks,
> 
> Craig
> 1972 Triumph TR6
> 
Craig,

According to the TR6 handbook on page 58 the fluid level should never go below 
the danger line. As pictured it is where the top oval portion of the reservoir 
meets the lower straight portion. So I would guess that any level above that 
is ok up to the bottom of the filler cap.

I just finished bleeding my 72 brakes and I left the fluid level to about 1/2 
below the lower cap.

Bob