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Canadian Poncho Homepage -> Canadian Poncho -> Pre 1958 Canadian Pontiac Power Train Tech Forum -> Need help...not getting any fuel...
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52poncho


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Need help...not getting any fuel...
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So here's my dilemna...put a new fuel pump on my 52 with the stock 239 Flathead, and I don't have enough pressure to run it.  I'm running through an electric fuel pump as a back up...could this be restricting the flow?  Any ideas?  Need her running for the WOW next weekend...Thanx

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tin indian


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the elect. pump will definately restrict flow if it is not running.

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66 parisienne, 427
Fitz


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I agree with the statement above.

You can built a bypass with a manual valve to operate your mechanical or electric pump.

Fitz.



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beaucarlo


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check your push rod travel , flatheads notorious for worn camshaft lobe driving the pump.

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bob lewis
52poncho


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I was thinking about the "lobe" issue, but the new pump I got has a wider surface than the original...probably twice as wide...I will bypass the electric pump and try that...Thanx alot for the help.

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4SPEED427


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Do you know that your feed line out of the tank is clear? Is it an old original tank that may have a good coat of varnish inside the tank on the inlet?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
52poncho


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I flushed the tank out last summer...little bit of rust in it, but it will work for now...anyone know what modern tank will fit nicely with out alot of modifying?

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4SPEED427


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Just for fun, what if you try a hose from a jerry can beside the car, eliminating all but the line from the pump to the carb?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
52poncho


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I'll try that...thanx

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1954 Ken


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Having any luck?

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52poncho


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Oh sorry guys...asking the questions today....working on her tomorrow...I'll keep you posted.

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rocketman


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When all else fails...blow in the tank..push any **** outa the line, same problem with my buddys car flat six..old gas line..plugged, the engine should suck with the force of pump and get rid of other electric pump..thats one more restriction..suck an blow!!..I know a girl just down the block who can rid your problem for 50 bucks..lol..but ya **** bulids up in the line.

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rocketman


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She said she was busy..so you could use an air compressor and a rag...works.

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52poncho


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Thanx...got her figured out...bypassed the electric pump and removed the filter at the carb...now have an inline between the mechanical and the carb....seems to run good now...she does sputter and fart on occasion though....let her sit and she's fine again....vapour lock maybe?

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4SPEED427


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You wouldn't think vapour lock would be an issue in these temperatures would you? I thought that was for hot summer days.

Only spitting when it's hot? Coil maybe, condenser, point adjustment?

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
52poncho


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Yes, it only seems to fart around once it's hot....at idle speed especially I've got a set of points so I'll try that...Thanx

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4SPEED427


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I remember guys saying that hot misfiring was sometimes the condenser in the old distributors. Cheap stuff to try at least...

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
Rolilk


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Carl Stevenson wrote:

I remember guys saying that hot misfiring was sometimes the condenser in the old distributors. Cheap stuff to try at least...

 Carl good one!  Cheap and easy fix..

 



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