BigT Posted March 5, 2021 Share Posted March 5, 2021 I am attempting to restore an old fire engine that hasn't been on the road for a few years. It's a gas inline 6 thermodyne. I had it running for a while but the original dual chamber fuel pump is toast. I've ordered a few other pumps claiming to be compatible, but unfortunately would not line up internally. At this point I'm wasting time and money on "trying on" different pumps. So I'm curious would I be able to install an electric pump and pressure regulator instead of searching for another mechanical pump, if so what would ideal psi be? Quote Link to comment Share on other sites More sharing options...
yarnall Posted March 6, 2021 Share Posted March 6, 2021 I put this a Napa 12v fuel pump on several of my trucks including my 1947 85LS. It works great without a pressure regulator. https://www.napaonline.com/en/p/CFPB0110E?cid=paidsearch_shopping_dcoe_google&campaign=GSC-Fuel-Emissions&campaign_id=10951730297&adgroup_id=113117085528&adtype=pla&gclid=EAIaIQobChMIit65676a7wIVxgeICR3ewQ4NEAQYFCABEgJmNPD_BwE& mike 1 Quote Link to comment Share on other sites More sharing options...
609albert Posted March 7, 2021 Share Posted March 7, 2021 Also mine want bad ,lucky in garage ,sent to a place in N.Y. on a monday and I got it back on Friday all rebuilt for about $100. this was on my 54 LS85. your Mack looks good, what is that white item in the hose bed? Quote Link to comment Share on other sites More sharing options...
609albert Posted March 7, 2021 Share Posted March 7, 2021 I assume your gas tank is in the rear between the frame rails, I previously had a 47 mack pumper that the tank was mounted above the fire pump, that on had a cheap electric pump did not last long. Quote Link to comment Share on other sites More sharing options...
1958 F.W.D. Posted March 7, 2021 Share Posted March 7, 2021 Don't forget to only use non-ethanol gasoline if you are able to. Quote TWO STROKES ARE FOR GARDEN TOOLS Link to comment Share on other sites More sharing options...
mowerman Posted March 8, 2021 Share Posted March 8, 2021 Yeah your truck looks real good .... bob Quote Link to comment Share on other sites More sharing options...
mowerman Posted March 8, 2021 Share Posted March 8, 2021 1 hour ago, 609albert said: Also mine want bad ,lucky in garage ,sent to a place in N.Y. on a monday and I got it back on Friday all rebuilt for about $100. this was on my 54 LS85. your Mack looks good, what is that white item in the hose bed? To me it looks like a little kid bedframe ha ha I’m sure it’s not... bob Quote Link to comment Share on other sites More sharing options...
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