The TR4 gas tank was vented, while the TR4A tank was not. Therefore the
TR4A cap was vented, or you _will_ suffer fuel starvation. I mistakenly
used a TR4 (unvented) cap a few years ago. As I recall, the fuel
starvation was worst when the gas tank was nearing empty.
Keith Edwards
Suffolk, VA
2 TR3Bs
2 TR4As
1 Healey
1 Princess
a couple of fractional cars, in addition
John Middlesworth wrote:
>
> I've noticed that the gas tank in my 1966 TR4A has no tube to vent fuel
> vapors out under the car, as I understand the original design to work.
> I'm guessing that it has a TR6 tank in it, which wouldn't be bad if the
> gas tank vented the vapors out. So my question is--does the 4-4A cap work
> that way (or does any TR's cap work that way)? If, as I suspect, it
> doesn't, then what problems should I expect with a tank that has no real
> way of venting fuel vapors? Should I attempt to retrofit a TR6 carbon
> canister to this tank?
>
> John Middlesworth
|