Dodgy49 Posted May 29, 2018 Report Share Posted May 29, 2018 I am painfully close to getting a basket case 49 Coronet back in running shape, but I am having trouble with fuel delivery. The fuel pump isn’t working. I have the original pump with a glass bowl on the bottom from the 50 donor, the original from the 49, and a spare of unknown age. None draw fuel. I am running a short line (2ft) from the pump inlet to a clear container with fuel then to the carb. I have the shop manual and tried the suction tests but they seem inconclusive. Is there a pruning sequence? Some have suggested an electric fuel pump but I’d rather not. Any and all suggestions welcomed. Quote Link to comment Share on other sites More sharing options...
Worden18 Posted May 29, 2018 Report Share Posted May 29, 2018 I would just buy a new replacement. Those old ones may have quit drawing fuel decades ago, who knows? Quote Link to comment Share on other sites More sharing options...
sser2 Posted May 29, 2018 Report Share Posted May 29, 2018 Out of curiosity, I would take them apart and look at the membranes. If these are original pumps from 50s, all chances are that rubber membranes deteriorated - too stretched out or torn. A new membrane can be cut out of proper material. Now they make stuff compatible with ethanol. Old membranes were not designed for ethanol. 1 Quote Link to comment Share on other sites More sharing options...
BobT-47P15 Posted May 29, 2018 Report Share Posted May 29, 2018 You can purchase new fuel pumps with materials that are resistant to today's gasoline ingredients......on ebay and other places. Quote Link to comment Share on other sites More sharing options...
Dodgy49 Posted June 5, 2018 Author Report Share Posted June 5, 2018 Thanks for your input. installed the new pump, fixed a leak or two. Runs pretty well. I had lot of “advise” to add/change to an electric pump. I hope to upgrade to 12 volt once it’s running , I feel that would have added another layer of unnecessary complexity. 1 Quote Link to comment Share on other sites More sharing options...
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