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4 replies

Fuel Delivery problem

fordgtfordgtMember

I am trying to wake up 06984 after a couple year hibernation. Changed the oil & filter, pulled the plugs and put some Marvel Mystery oil and let it sit. Cranked it up without plugs got good oil pressure. Put the plugs in and tried to start it. Cranked really strong but no start. Good spark. Checked the fuel pump and it is dry. ( I drained the 2 gallons of stanky gas and put 7 gallons of fresh gas in. There was no trash, rust, water or other junk in what I drained). I have a mechanical fuel pump with AN fittings. I took it out and disassembled it thinking it may have a ruptured diaphragm. It all looked good. There ia a tag on one of the screws but it is not legible.

 So, I guess I am looking for a new fuel pump with AN fittings but I guess I am wondering if there is something I am missing. I have never had to "prime" a mechanical fuel pump. Is that what I am missing?

 

Thanks 

Gary #06984

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R rrs1Member

Yes it's possible it needs priming. If I recall I used an air nozzle with a rubber tip on my compressor and pressed it into the top fitting in the gas tank. You don't need a lot of pressure maybe 30 lbs or so. Hold it there for 10 seconds or so, then see if it will pump.

Pumps are cheap check Summit, matter of fact they can be too cheap and fail prematurely.

Last edited by rrs1
joulesjoules"Racing is Life, anything before or after is just waiting" - Steve McQueen

Sorry to disagree, but under no circumstances put 30 psi of pressure into a fuel tank, you stand a good chance of rupturing the tank. I recently had to prime mine after a period of inactivity, just pre-fill the hose from the tank using a small funnel or squirt bottle.

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