Fuel Pump Flow?

Reply Subscribe

Thread Tools

Search this Thread

Jun 10, 2014 | 04:11 PM

2wheelin

Thread Starter

Heel & Toe

Joined: Jul 2008

Posts: 23

Likes: 2

From: Blandon PA

Fuel Pump Flow?

My 1979 is not starting, I did have it running a week ago. Getting spark, so I checked the fuel system. Manual says disconnect fuel line from carb and catch the fuel in a suitable container (I used a 2 liter bottle).

I cranked the car for a couple of seconds and a pathetic little squirt drooled into the Sprite bottle with each stroke of the pump.

Now, I know it could be the filter that is clogged (I will check it next), but how much fuel can I expect with each pump?

Thanks fellas!

Jun 10, 2014 | 04:45 PM

MelWff

Race Director

Joined: May 2006

Posts: 18,706

Likes: 2,573

the only filter from the factory was in the carburetor. You should get a lot of gas when cranking.

Jun 10, 2014 | 08:00 PM

BKbroiler

Le Mans Master

Joined: May 2002

Posts: 5,086

Likes: 786

From: Lebanon Township New Jersey

Quote:

Originally Posted by MelWff

the only filter from the factory was in the carburetor. You should get a lot of gas when cranking.

Jun 10, 2014 | 08:27 PM

johnt365

Drifting

Joined: Dec 2004

Posts: 1,714

Likes: 42

From: Austin Texas

How was it running last week? When you drove it, did it have any performance issues when it was under load?

If the battery is strong and the starter is spinning the motor at the normal starting speed, removing the fuel line can make a mess in a coffee can quick.

Are you able to start and drive the car with the help of a shot or two of starting fluid?

There should be a strainer in the tank like this one .

Jun 12, 2014 | 01:03 PM

2wheelin

Thread Starter

Heel & Toe

Joined: Jul 2008

Posts: 23

Likes: 2

From: Blandon PA

*UPDATE*

She fired right up with the Starter Fluid, then stalled.

Another shot of Starter Fluid, it starts and keeps running.

Take it for a spin and runs fine.

I am still concerned about the low-flow going into the carb. I will check the in-line filter that is attached, it is an AC GF61 fuel filter, then I will check the gas tank filter (strainer).

QUESTION: Is there a check valve in the pump the might allow the fuel to siphon back to the tank?

Thanks

Jun 12, 2014 | 01:50 PM

MelWff

Race Director

Joined: May 2006

Posts: 18,706

Likes: 2,573

the tank is higher than the pump the only check valve would be from the pump to the carb

Jun 12, 2014 | 01:58 PM

FireballXL5

Pro

Joined: Aug 2013

Posts: 591

Likes: 3

From: Monroe Washington

Have you performed any other related or unrelated work recently? Sometimes that is critical information left out in OP posts... Lol. Just sayin.

The only thing I know of that might be connected is the fuel vapor canister which feeds pressure/excess fuel back to the tank... Many times they are disconnected... Is your fuel cap vented or not? When you open the gas cap does it hiss like it was under pressure?