Triumph | Forum profile

Hi there. The damper helps control the amount of fuel that goes into the engine. The high it rises into the housing the more fuel that comes up out of the jet since the needling is being pulled up.

The cylinder visible at the intake is not the damper, nor the choke. These are what are known as "variable venturi" carburetors (or "constant depression" if you are British :G) and that cylinder forms the top of the venturi. Chevy never used variable venturis, although ISTR Ford experimented briefly in the late 70s with them (before moving on to EFI). Basically, the piston rises in response to air flow into...

http://www.mgb-stuff.org.uk/lead_replacement.htm

That's what I put in the TR3...an Optima. BTW, they are not gel batteries, but AGM (Absorbed Glass Mat) batteries...different then gel batteries. There are so many advantages to AGM's, especially for cars that see less use then a daily driver, and one that may be stored for several months. BTW, I can attest to the longevity of AGM's. I just replaced the original Panasonic AGM in my '92 Miata last month...with, of course, an...

Thanks for the pics Pied, they really helped! I just sent you 2 PM's Tinkerman

Just make sure that you have enough air venting to allow the fan to pull air out and not suck the walls in, especially when the filters get a little blocked and cut the volume of air down.

BTW,I don't know what's holding your cotter pin in there, but originally the legs were flared out from the inside.

Jeremy- I think I have 3 Amco boxes sitting around, and all of them have that issue with holes in them - pretty sure my current box is bent slightly around the problem. I'd still use the box for what its worth, maybe get creative with an exacto knife if you must make some room. Randy

So it's not a clutch issue... check the U-joints.

sp, are you talking about the mounting point at the top behind the dash? Cheers M. Pied Lourd