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TR2/3/3A Brake questions

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PatGalvin

PatGalvin

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Good evening:

Am cleaning up the brake and clutch MC reservoir on the TR3A. Have a couple questions for the esteemed brain trust.

First, the reservoir has fittings on the bottom that attach to the hard tubes that carry fluid to the MCs. These fittings are sealed with rubber O-rings or seals. Does anyone know where I can obtain these rubber seals?

Second, the reservoir has a tall tube in it to separate the clutch from the brake. I inadvertently cut the brake and clutch lines before I noted if this tube was on the brake line or the clutch line. Does anyone know?

Finally, I'd like to purchase new springs for the brake and clutch forks. Does anyone know where this can be purchased (Moss sells as an assembly).

Thanks very much.

Pat



 
Pat The inner tube goes. To the brakes ( at least that is the way it is on mine). I have some extra springs at home. I can send them to you when I get home (we are at Lake Tahoe for our anniversary) should be home in a couple days .
 
I don't know where the inner to was meant to go, but because it's volume is smaller then the outer section, to me it makes sense to have the smaller section go to the clutch. As the front brake pads wear, the pistons have to come out of the bores more and there has to be ample supply of fluid available to fill those bores.
 
The inner tube is the clutch. And, the connections on the bottom are standard flare-type compression fittings and don't have o-rings. Good luck.
 
PKPoole said:
The inner tube is the clutch. And, the connections on the bottom are standard flare-type compression fittings and don't have o-rings. Good luck.
Click to expand...

I believe he is reffering to the seals between the can and the fitting,not the fitting and line.I bought the moss replacement,supposedly improved in this area with better seals.The reproduction came labled for the clutch in center,brakes outer. Tom
 
Thanks Tom. I didn't catch the 'fitting-to-tank' connection.
 
The new reservoir from MOSS also comes with a rubber seal under the cap which may keep the stuff from splashing up onto the threads and causing them to rust once the paint dissolves. I will let you know if that works after a year. It does seem to seal better.
Jerry
 
Jerry said:
The new reservoir from MOSS also comes with a rubber seal under the cap...
Click to expand...

The original seal was a rubber ring. I have had better luck with a modern replacement that seals completely but has a bellows design to accommodate any vacuum that develops between openings:

BrakeReservoirGasket.jpg


Available in the Help! section of most FLAPS. Here are the original and GM version side-by-side:

BrakeReservoirGasket2.jpg
 
I agree, center tube is for clutch. The disc brakes get the larger, outer portion.

I don't believe the original seals were O-rings; but rather a mixture of fiber and "rubber" washers. EPDM should do (don't use Buna-N).
 
Thanks for all the responses.

Dan - Happy Anniversary. Let's connect when you return to the lowlands.
Geo - great recommendation regarding the seal on the cap. I bet lots of folks will benefit from that retrofit.
Randall - Where would you purchase the EPDM seals? McMaster? Sorry, I'm pretty resourceful but I'm not really sure where to go for that one.

Thanks much

pat
 
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