[Mgs] MGB fuel problem follow-up

[Barney Gaylord]

Definitely insufficient fuel flow.  Yoiu should get a gusher at the 
hose going to the carburetors, at least a pint per minute.  Start 
following the fuel line back from the carburetor toward the fuel pump 
looking for an obstruction.  Look for a pinched, possibly where the 
fuel pipe might run under the rear leaf spring front mounting 
point.  This is a common jacking popint, so if the fuel pupe runs 
under there it may have been squashed by jacking the car.

Found nothing amiss there, disconnect output pipe from the fuel pump, 
switch on and observe fuel flow there.  If you get a gusher, then the 
obstruction is between the pump and carbs.  If slow output from the 
pump, try cleaning the screen in the bottom of the pump.  Barring 
that, look for obstruction between pump and tank.  For MGA, fuel like 
from tank to pump was originally all steel, and the line from pump to 
heater shelf also all steel, no hoses at all.  If you find a hose 
anywhere around the fuel pump,it is a retrofit.  For MGB, the pumo 
was connected with hoses,  The hoses might deteriorate and obstruct 
flow,  Or something in the tank might clog the pickup pipe.


At 09:48 AM 5/23/2018 -0400, wkilleffer--- via Mgs wrote:
>Hello everyone,
>
>Thanks to everyone who's responded to my earlier email about the 
>fuel problem with my car. Here's what I have so far:
>
>Removing the gas cap doesn't make a difference. I haven't heard any 
>whooshing sounds when removing the cap, but it also doesn't allow 
>the car to run any better.
>
>When I installed the new fuel tank, there were pieces of foil tape 
>covering the fuel inlet, the breather on top of the tank, and the 
>outlet. Is it possible that something was on the pickup inside the tank?
>
>I disconnected the fuel line @ the carbs and switched on the 
>ignition. I didn't measure the fuel, but noticed that the pump seems 
>to send a pulse of fuel every 4 to 6 seconds. Does that seem normal?
>
>I'm gue ssing that either something is interfering with the tank 
>pickup or has made its way into the line, or something has gotten 
>into the float bowls and blocked the grosse jets or the jet inlet at 
>the bottom of the bowls.
>
>Thank you,
>-William