Tinster said:
NOW you tell me Triumphs are prone
to exploding into balls of flaming infernos.
Well, that's just GREAT news to learn.
Blargh!!! and double BLARGH!!
Your TR will easily surpass the Crypt Car in
miles driven during year 2007.
There is an automatic fire extinguisher system
they sell for boats- below deck engine compartments.
Maybe I should look into installing one in Crypty?
It puts out engine gasoline fires instantly.
I don't recall ever seeing a TR go up in flames. So, I wouldn't say they are prone to it at all. I've seen a photo of a burnt TR8, but I think that was a fuel injected car.
Speaking of which, on the highways of Calif. I've seen a pretty surprising number of late-model, fuel-injected cars in flames. Probably averaged about one car fire every month or two when I commuted 30 miles round trip (for 10 years).
Fuel injection has far, far higher pressure in those fuel lines than our old TRs do. Something to think about.
On the other hand, most racing orgs require some sort of on-board fire extinguisher, no matter how the car's fuel is handled.
Like others have suggested, it's possible just some gunk from the fuel tank plugged a needle valve in the float bowl, or another valve stuck open. That could easily cause a one-time problem and cars that sit a long time tend to built up a lot of junk in the fuel tank.
I'm sure your car has a fuel filter, others suggested changing it.
Personally, I'd consider getting one of those clear generic ones with the cartridge filter inside and adding it to the fuel line up near the carbs. That would both act as a secondary line of defense and you'd be able to see pretty easily if there are flakes of rust working their way through the fuel system. Any brownish/reddish crumbs would be a tip off that there's some rust in the bottom of the gas tank.
Another possibility is the fuel itself attacking the rubber hoses. Now, I don't now how they formulate fuel there, Dale, and this is probably more of a concern with cars older than yours, but some modern fuel formulas cause older rubber hoses to break down and pretty quickly disintegrate.
If you see black "crumbs" building up in a clear filter like I suggested using, that's probably a sign that any old rubber fuel hoses on the car need to be replaced. In your photos the hoses under the hood look relatively new and ini good conditioin. That would leave the ones back by the fuel tank, underneath, to be concerned about if you don't know if they've been replaced recently. It's cheap standard hose available locally, if needed. Modern hoses are made to tolerate modern fuel formulas.
I hope it's a relatively easy problem to sort out, or just a one-time occurance of some stuff that shook loose and has now passed through the fuel system.