Fuel Starvation (temporary)
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More Turbo
Joined: Sep 2021
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I will do it in that order exactly! I’m learning…slowly but learning and I have all of you to thank
Lead Driver
Joined: Apr 2002
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With the fuel pump on the frame rail, it's going to be at the same elevation as the fuel tank, so no suction lift involved, only a little bit of friction head loss to the pump. Should be zero vapor lock issue there. It was mentioned that the fuel goes up out the top, but then it goes back down to the pump, so it balances on elevation change.
If you have 100 feet of garden hose and you want to water on the other side of your house, would you have more water pressure going around the house or over the top of the roof, to the same place?
If you have 100 feet of garden hose and you want to water on the other side of your house, would you have more water pressure going around the house or over the top of the roof, to the same place?
Lead Driver
Joined: Jun 2013
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From: Tolland, CT
FWIW, about the full fuel filter, at a car show, I saw an old Chevy with a full inline filter, sitting right there on top of the V8 intake manifold. So some filters do get fully full, so it is a thing...
Let's hope we get an update from Larry soon.
Let's hope we get an update from Larry soon.
Tuned
Joined: Dec 2024
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From: Texas, near Houston
Lead Driver
Joined: Apr 2002
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Air has a way of finding high points in fluid tubes. Since the diameter of the filter is greater than the fuel line the fuel flow can't sweep out the air. Other high points will do the same thing, but over time the air gets swept out. I think you could remove the fuel line from the carb and hold it straight up while bumping the starter or turning on the key with epumps and the air would purge out. Then hold your finger over the fuel line and reattach it and straight away start the engine. That would probably get rid of the air bubble if you wanted to. But as long as adequate fuel goes in and out of the filter there would likely be no performance difference between partially and fully full.
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From: Angier, NC
I would think once the system has been running the air would be purged out.
If you are seeing air bubbles coming into the fuel filter after the fuel pump the pump is sucking it air from some place and has to be fixed.
Any air that may be in the system once it hits the carb float bowl it will go out the bowl vent so fuel can enter.
Again if you are seeing air bubbles entering the fuel filter you got a problem where the pump is pulling in air.
BTW I had a car that would run out of gas under a heavy load. The short rubber hose from tank sender to metal line had cracks but no gas leaked out of it.
Dave ----
If you are seeing air bubbles coming into the fuel filter after the fuel pump the pump is sucking it air from some place and has to be fixed.
Any air that may be in the system once it hits the carb float bowl it will go out the bowl vent so fuel can enter.
Again if you are seeing air bubbles entering the fuel filter you got a problem where the pump is pulling in air.
BTW I had a car that would run out of gas under a heavy load. The short rubber hose from tank sender to metal line had cracks but no gas leaked out of it.
Dave ----
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More Turbo
Joined: Sep 2021
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hey everyone we had our Granddaughter here visiting so my truck has just sat. The spacer did arrive yesterday so either today or tomorrow I’ll get busy installing it and putting on the new fuel pump.
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More Turbo
Joined: Sep 2021
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Hey I’m not sure if everyone saw my reply ref our Granddaughter has been here visiting. We got super busy riding horses, side by side and visiting Yellowstone. The 1” spacer arrived yesterday. Today or tomorrow I’ll install the spacer and new fuel pump. I figured since I had the fuel pump I’d just install it so I know the age etc.. Any suggestions before I get started?
Larry
Larry
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More Turbo
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10-4 I’m glad I checked my post because I’m heading out there now. Thank u
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More Turbo
Joined: Sep 2021
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Well I got the 1” spacer on. Drove up the canyon a good ways to get the engine hot, came home and shut the engine off. Let it sit for about as long as I was in Ace Hardware the other day when I came out and had starting issues. This time…..drum roll….my truck started up with no cranking required. Now should I still go ahead and replace the fuel pump? It’s a quick job and I can’t return it because I destroyed the packaging 🙄😝