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Need some help please. #1
lewk Keith Lewis Cambridge, ON, Canada Sign in to contact 1975 MG MGB MkIII "RBLUEB" 2010 Ford Explorer Sport Trac 2012 BMW 323i	Topic Creator (OP) Apr 29, 2016 05:30 PM Top Contributor Joined 18 years ago 4,738 Posts

I'm having trouble with fuel delivery to my Weber. At least I think it is fuel delivery. All this started just after I brought the car out of winter storage. Going up hill would lose power and seem fuel starved, managed to limp home. Today changed fuel hoses to carb and filter and took it for a run, car stopped and would not keep running upon applying foot to gas. There is an after market electric fuel pump (Herko) on the car that does make a ticking sound upon start up, ticking sound now is very weak and upon checking pressure with a pressure regulator found only 2 psi. Do you think it's time for a new fuel pump. Have not checked any electrical as yet as it just doesn't seem to feel that kind of a problem.

1975 MGB

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Re: Need some help please. #2
ohlord Rob C A tiny Island off the coast of Washington State, N.W., USA Sign in to contact 1957 Land Rover Series I "EYEYIYI" 1957 Land Rover Series I "OVRLND" 1971 MG MGB 1971 MG MGB "Bedouin 2" & more	Apr 29, 2016 05:41 PM Top Contributor Joined 12 years ago 28,878 Posts

Flow is more important than pressure. It will use under 4 psi but needs about a pint of fuel in 30 seconds (check by putting disconnected carb fuel line into a quart jar and turning key on)

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Re: Need some help please. #3
mgbanthony Anthony Henderson Eastern Thousand Islands, ON, Canada Sign in to contact 1962 MG MGB 1974 MG MGB	Apr 29, 2016 05:46 PM Top Contributor Joined 18 years ago 13,240 Posts

Change the fuel filter while you're at it...

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Re: Need some help please. #4
ML320X5 Stan Y Tulsa, OK, USA Sign in to contact 1952 MG TD 1973 MG MGB 2002 BMW X5 2005 Mercedes-Benz SL500	Apr 29, 2016 05:56 PM Joined 8 years ago 398 Posts

Do you still use that original flex hose between tank and the old SU pump? That flex hose may causes a small seepage.

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Re: Need some help please. #5
ozieagle Herb Adler Geelong Victoria, Australia Sign in to contact 1958 Wolseley 1500 "Wooly" 1966 MG MGB "Bl**dy B" 1995 Toyota Highlander "Hi Ace Van" 2022 MG ZS	Apr 29, 2016 06:51 PM Top Contributor Joined 13 years ago 15,856 Posts

Might also be a vacuum build up in your fuel tank.

2 psi is OK.

Herb

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Re: Need some help please. #6
Bruce L. Wiley Bruce Wiley Vidalia, LA, USA Sign in to contact 1965 MG MGB "Daisy"	Apr 29, 2016 08:45 PM Joined 9 years ago 424 Posts

Mine was doing that, after trying 2 fuel pumps I found a pin-hole in the metal line between the tank and pump.

"It's not ownership, it's a relationship."

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Re: Need some help please. #7
lewk Keith Lewis Cambridge, ON, Canada Sign in to contact 1975 MG MGB MkIII "RBLUEB" 2010 Ford Explorer Sport Trac 2012 BMW 323i	Topic Creator (OP) Apr 29, 2016 10:12 PM Top Contributor Joined 18 years ago 4,738 Posts

Thanks guys, I'll be trying your suggestions and let you know how I make out. Can't be tomorrow though, grandson's birthday. Back at it Monday.

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