Fuel tank stop cock

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pushrod
Posts: 225
Joined: Wed Jan 18, 2012 12:54 am
Location: South Wales

Fuel tank stop cock

Post by pushrod » Thu Aug 21, 2014 11:47 pm

I have a stop cock and hose connector brazed onto the top of the offside fuel tank. It doesn't look like it is supposed to be there and serves no possible use. I've had the tap turned off and a cork wedged over the end for the past few years.

Anyone know what it's for?

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65 Mk1 Tiger 260
66 Mk1 Tiger 260 (African Violet)
63 Ford Falcon Sprint
63 Ford Falcon Monte Carlo Rally replica
02 Honda Valkyrie

ksherlock
Posts: 74
Joined: Thu Jun 30, 2011 9:25 am

stopcock

Post by ksherlock » Fri Aug 22, 2014 10:26 am

It may have been used at sometime in the past to pressurise the tank in order to check for leaks by immersing it in water and looking for bubbles.

garyv8tiger
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Joined: Sun Dec 30, 2007 10:57 am

Post by garyv8tiger » Fri Aug 22, 2014 12:56 pm

is the balance pipe still connected that links the 2 tanks to let the air out

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pushrod
Posts: 225
Joined: Wed Jan 18, 2012 12:54 am
Location: South Wales

Post by pushrod » Sun Aug 24, 2014 6:53 pm

Yes, the balance pipe is fitted, I changed that about 2 years ago.

I may look to replace the pipe from the filler cap that the balance pipe is connected onto and possibly replace the rest of the old rubber connections with some silicone petrol pipe. Winter job methinks.
65 Mk1 Tiger 260
66 Mk1 Tiger 260 (African Violet)
63 Ford Falcon Sprint
63 Ford Falcon Monte Carlo Rally replica
02 Honda Valkyrie

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pushrod
Posts: 225
Joined: Wed Jan 18, 2012 12:54 am
Location: South Wales

Post by pushrod » Thu Aug 25, 2016 10:31 pm

I think I may have found out what that tap was for on my O/S fuel tank.

I recently met up with the guy who I thought was the second owner of my Tiger. He told me that the chap that he bought the car from wasn't the original owner and that the car was initially owned by a guy who used it a lot for long journeys in France. It had a temporary additional fuel tank fitted just behind the front seats, on the rear parcel shelf. The tap may have been how the existing tanks were linked to the auxiliary tank. Not something you'd get away with these days.

At that time the car was on a private plate which was sold off in the late 90's. The original plate wasn't re-used.

I've contacted the DVLA to see if I can trace the original owner and get some pictures of that fuel tank.
65 Mk1 Tiger 260
66 Mk1 Tiger 260 (African Violet)
63 Ford Falcon Sprint
63 Ford Falcon Monte Carlo Rally replica
02 Honda Valkyrie

Brad1380
Posts: 507
Joined: Wed Apr 27, 2011 1:38 pm

Post by Brad1380 » Fri Aug 26, 2016 9:55 am

Would be very hand for a return to tank line to recirculate the fuel if your having any hot running problems with modern Ethanol based fuel, basically reducing the time the fuel is sat in the hot engine bay.
About to do something similar on the GT but using the fuel filler neck for the return point.
1966 Sunbeam Tiger Mk1a

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