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Thanks!

David, I refer to that hammer as "The Orange Persuader"

I believe I bought it at Hsrbor Freight.

Check with Olsons, Port Orchrd, WA,
They have the gaskets .
I provided them with template usable original off of my 37 115c .
Larry

Thanks Larry!

Dot 3/4 (conventional) or Dot 5 (synthetic) brake fluid. Since this will be all press new parts what is the opinion?

I would imaging either is compatible with thr runner parts (hoses, seals, etc) supplied by Kanter.

The difference between 3/4 and 5 is not way of manufacture. Dot 5 is silicon, Dot 3/4 glycol. So they are very different chemistries. Lots of debate on this, I have not the experience to share, but there are threads on this. Brake light switch was an issue for some

Some of the brake component suppliers specifically say to only use a certain fluid or they will void the warranty or that their product has not been tested with fluids other than the recommended and results using something else cannot be guaranteed.

If Kanter did not specify a fluid and has no restrictions in their literature to the contrary then I would go with the silicone fluid strictly because it is not hygroscopic to the same extent the DOT 3/4 fluids are known to be. You may sacrifice life on the hydraulic brake switch if you keep it stock though. A change to one of the all mechanical switches operated by the pedal arm would solve that issue.

With the high humidity in your area and silicone fluid not attracting moisture it would probably buy a longer time between fluid changes and less potential damage or corrosion in the wheel cylinders.

This is the label on the Kanter master cylinder. Not sure what SAE J1703 is.

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From reading the SAE spec it would appear they recommend only dot 3/4.

I'd prefer to use Dot 5 only because of how close the master cylinder is to the exhaust collector on the JAG motor. I'll probably need to rig up some type of a heatshield. The collector comes down pretty much between the steering box and master cylinder

J1703 is the SAE spec for DOT3 fluid. You can download a pdf if you want to see what it entails but basically details how the fluid is formulated and how or what chemicals it is made from or how it can or cannot react to other materials in the brake system and how much water absorption is permissible.

If you want to follow the letter of the mfgs warnings then use only the old DOT3 fluid but you might also ask Kanter if there is something specific that would not work with silicone. Silicone is, I believe, a bit thinner or less viscous than glycol fluids so that could be a reason.

If it is a new repro cylinder copied and based entirely on an old original that never had a modern engineering review the warning could also be a CYA statement to keep a lawyer happy since that was what was originally specified back then.