35 hp Johnson RDE-19 (fuel question)

[dcparizo]

Motor running great!!!<br /><br />seems to starve itself off after running for a few.<br /><br />The primer on teh tank begins as firm (preasurized) then as the engine is running, and finally stalls. The preasure is much less.<br /><br />Reading the manual says that the preasure should be 1-2 lbs. <br /><br />Being that I can prime and restart this engine my suspicion is that the preasure to keep fuel flow is being limited some how.<br /><br />Now the question. Can I fit a standard fuel pump from a modern 35 hp outboard onto this engine and convert it to a modern tank? (obviously there would be physical mounting issues but ....)<br /><br />the typical fuel pump looks like a "house" (box with top point) for all intents and purposes.

 

[OMC-ALLtheWAY]

Re: 35 hp Johnson RDE-19 (fuel question)

IF its an older 35 you can buy a pump kit for like 25 bucks it has springs and diaphram and everything you need to rebuild your pump.<br /><br />If its a new 3cyl I dont know, I do know them new 3cyl 4blade 35s scream my buddie has one and I cant touch him with my 30 or 35, If its that I am very envious

 

[JB]

Re: 35 hp Johnson RDE-19 (fuel question)

Yes, Geek.<br /><br />There were kits available to convert your engine to a fuel pumped, single fuel line, vented tank setup.<br /><br />I would start at www.twincityoutboard.com. If anyone has one, they do.<br /><br />Good luck.

 

[bhalsdorf]

Re: 35 hp Johnson RDE-19 (fuel question)

I have a 1958 RDE20 Johnson 35 HP and I do believe the RDE19 is also a 1958 model. Mine has the fuel pump right from the factory. If you use a single furl line on yours you also have a fuel pump and just need the rebuild kit. If you are running a duel fuel line then you do not have the fuel pump and are using a pressurized tank. If using the duel line you may have a leak somewhere that is causing loss of pressure. Can be at tank or somewhere in the lines. There are kits available to add a fuel pump and change to the single fuel line.

 

[JB]

Re: 35 hp Johnson RDE-19 (fuel question)

RDE-19 is a 1957.<br /><br />RDE-19C and RDS-20 are 1958.<br /><br />I find no RDE-20 listed, but that doesn't prove anything.<br /><br />The fuel pump and bypass cover it mounts on from the 1962 and later RD series engines are adaptable to the RDE-19, RDE-19C and the RDS-20.<br /><br />This is the "kit" I referred to. I suspect that is what is on Bill's engine.<br /><br />Good luck.

 

[rolmops]

Re: 35 hp Johnson RDE-19 (fuel question)

Hello.<br />I had the same problem with my '57 35 seahorse(sweet machines).Problem turned out to be clogged fuel filters.<br />There is one in the glass bowl and one on the bottom of the fuel pickup in the bottom of your pressure tank<br />I cleaned the one on the fuel pickup, discarded the one in the bowl and now she runs like a dream again.<br />Good luck.