Kenrow

Original screws were 1/4 inch UNF x 1 inch. If you add thicker spacers you may need to adjust accordingly.

Take a look at the Rimmer Br. Catalog: https://rimmerbros.com/Item--i-GRID200790

Unfortunately the “new” lower front valance are no better

I have a 12 v cordless dremel. While convenient, it doesn’t have the umph the corded model has.

When I first purchased my Tr 250 it had K&Ns in the original air box? The air box had the front and middle couple of inches cut out to allow better air flow. Not sure if it did any good.

Hope this helps: "1973 Triumph TR6 Restoration - Part 13 - Assembling begins - YouTube" https://www.youtube.com/watch?v=VEzriXlZGIw

thanks everyone...

I do not think the melting point or tensile strength are big issues. Some manufacturers of Nylon 12 do not recommend it for fuel. Not sure why as it is one of the most resistance plastics out there.

Does anyone know where you can get the internal o rings.? I thought they were unavailable, hence why you shouldn’t separate the caliper halves. Ken in California

Nylon 12 is commonly labeled as DOT Nylon Tubing here in the USA. If going above 5/16" OD the tubing must be braided (Type B). Its primary use is in truck air brakes. Be aware that while, Nylon 12 does have better chemical resistance than Nylon 66, the tensile strength is lower and the melting point is lower.

When I purchased my TR 30+ years ago I had the metering unit and injectors rebuilt. Unfortunately life got in the way of my restoration and the parts have been sitting in a box. Seems like there would be a need to redo everything as the seals etc put in back then are not current fuel compatible. Does that seem to be reasonable? I also rebuilt all the the hydraulics back then, even though I used a lot of rubber grease, should I anticipate rebuilding those? Ken in California

If you don’t want to go the led route I believe I have some diffusers in my spare part bundle. PM me if interested...

Just a quick into. I’m new to the register but not new to Triumphs, having owned a 70 TR6 (sold), a 72 TR6 (rear ended and totaled), a 68 TR250 (rolling restoration, in my son’s possession), and my current project a 67 TR5. Note I said current project and not new, as I purchased this car in 1986. Between getting married, a new job, and twins, the restoration has been on hold since about 1990. I started with restoration of all the mechanical systems and then hit 80% of the body work. Since then I have done nothing, so basically I have had a car sitting in boxes for the last 30 years.

Here in the US you can get 100 ft. of Nylon 12 tubing in a multitude of colors for under 20 USD.