Fuel pump/ lack of fuel

Post by **AJL Electronics** » Thu Apr 18, 2019 9:22 am

A typical cause for that problem is perished fuel lines from nylons to tank. The pump just sucks air and no fuel.

Post by **scimitargtc** » Thu Apr 18, 2019 9:53 am

Had thought of that as I want to replace lines this summer for fire safety

Post by **AJL Electronics** » Thu Apr 18, 2019 10:02 am

You could prove the point by running a line into a fuel can from the south side of the pump.

Post by **scimitargtc** » Thu Apr 18, 2019 10:39 am

ok, simples question - the tank has 2 stubs 1 on the right when looking at them is slightly lower than the other - is it a given this is the supply side with the higher the return? tank came from gw at curboough & i know youll say just take off the pipes to check but the space is tight and really
dont feel like dropping th3 tank out

Post by **philhoward** » Thu Apr 18, 2019 10:46 am

Assume nothing - but assuming there’s fuel in there, one will be straight into the tank at the top and the other should blow bubbles. I wouldn’t recommend sucking on it yourself, but fuel should come out of one of them and not the other..

Post by **Tinker man** » Thu Apr 18, 2019 10:54 am

good morning,

i have tried to attach a picture which may help your question. is this the same as your tank? then again it may just add confusion if it is different!

: stainless-steel-petrol-tank-scimitar_se6.jpg (50.61 KiB) Viewed 1027 times

thanks, Ian.

Post by **scimitargtc** » Thu Apr 18, 2019 11:08 am

Ian, same as in your photo

Post by **Tinker man** » Thu Apr 18, 2019 11:12 am

that's positive then. maybe some knowledgeable person on here can say left or right for fuel feed?

its not my tank, just a picture off the net i thought may assist.

good luck!

Ian.

Post by **TrevorG** » Thu Apr 18, 2019 2:09 pm

Assume nothing, check everything is the best way forward! Original tanks have feed on outside, but who knows which is feed on aftermarket. For a few quid you can buy a suction brake bleeding kit which also doubles up as a brilliant fuel feed primer. If I was near enough you could borrow mine, but they are cheap on ebay. Bonus is that you can easily flush or bleed the brakes, check vacuum advance etc etc. as well.

Post by **scimitargtc** » Thu Apr 18, 2019 3:47 pm

Spoke to david via lily at gw’s as I bought the tank from them, right hand stub is the supply to carb but he mentioned a diagram so I’m just wondering if he was referring to the manual on their cd which has a diagram...off back out to garage now to see if 8 can trace the pipe work along the car and failing that connect the return pipe in the engine bay to the fuel pump and see if. Sucks fuel in which case I’ll need to swap the lin s st the tan’ which due to space means I’ll have to drop the tank... if 8 were a betting man I’m going say it’s a stuck diaphragm in the pump

Post by **scimitargtc** » Thu Apr 18, 2019 9:26 pm

Traced the pipe work, us ed the car lift I bought over a year ago which was fun getting the arms in the right positions having to get down each side of the car with arthritic knees and hand but did it and oh so Easy... anyway I had plumbed in the tank correctly, still no fuel so pump off again and on the bench, sounds like the diagfram is working but what’s the accepted method of testing off car?

Post by **scimitargtc** » Thu Apr 18, 2019 11:06 pm

Bitten the “bullet” ordered an electric pump which as I am visiting our eldest son over Easter won’t be fitted for at least 2 weeks but confident now she’ll be running at last.."