1962 evinrude 5.5hp

[Old56]

Hello I recently put the power head back on my outboard this might seem dumb but I can't figure out the fuel line configuration,I know it starts at the tank and into the fuel filter then does it go to fuel pump then carburetor it's my first attempt at getting an old motor back to life any help would be great thanks

 

[jimmbo]

Hose #20 is the crankcase pulse line
Hose #21 goes to the carb
Hose #22 goes to the fuel fitting for the tank hose

 

[Old56]

Thanks that helps a great deal

 

[Chinewalker]

Your fuel line from the fitting runs to the fuel pump first (both larger diameter fuel lines, either 1/4" or 5/16"), then from the fuel pump to the outer fuel nub on the filter, and from the inner nub to the carb. Your fuel pump is quite different from the one Jimmbo shows, as you have a separate fuel filter mounted on the intake manifold.

 

[jimmbo]

We had a 64 5.5. I though this was the pump. But it has been 30 yrs since a I saw that engine. If I am wrong, I apologize for the wrong info

 

[oldboat1]

The replacement for your pump is 0388685 (small square pump). Original model Chinewalker describes is 0378805, long obsolete but maybe could still be located somewhere. Both mount to the powerhead, getting pulse directly.

You can get the square pumps for about $40 or so. OEM are about $90. Will need a mounting gasket if it doesn't come with the pump. The one with the pn shown stands out a little further (profile is a little higher, and requires slightly longer mounting screws). Nothing is completely easy....

 

[Old56]

Thanks for all the info I'm a little confused the line comming out of the fuel pump connects to the out port on the fuel filter?? Not the in port I have it backwards I connected the line from fuel pump to the in on the fuel filter and then connected the carb to the out port of filter so that's backwards?? It's never easy lol let me know if I have them backwards thanks

 

[oldboat1]

If you have the original pump, it should show "in" and "out" on the housing. Bottom is in (I think), and probably has an integral screen in behind the nipple -- like some of the old Chryslers, if familiar with them. Let's see -- should be able to blow in the "in", but not the "out". I don't think I would add any in-line filter anywhere. (Be careful if you pull out an old filter. They are delicate -- better to clean in place with some carb cleaner.)

 

[Old56]

I do still have the old fuel pump but the diaphragms are rather stiff I guess from lack of usu I'm sure this motor hasn't been used for at least 30 years so fuel,line runs from pump to out of filter the from in on filter to carburetor is that the corect it seems backwards I'm just trying to figure this out ,should have taken a picture prior to taking old ones off live and learn

 

[oldboat1]

"In" to pump is incoming from fuel source (tank). "Out" is out to carburetor. If you have an external filter, I would put it between the tank and the pump (ahead of the "in" to pump) -- actually, would just take it out if it were mine. An external filter might be a restriction -- could always be added after the engine is back up and running. (I'm assuming your model doesn't have a glass fuel bowl -- advise if it does, or show a pic.)

 

[Old56]

Yes it has a glass fuel filter on the opposite side of the engine I have it set up tank to in on pump then line out to in on fuel filter then line out on filter to carburetor,is that the correct route? And thanks again for all your help hopefully this is the right sequence

 

[oldboat1]

Thanks for the filter info. Don't think that your routing is correct, if I understand your description -- filter should be in the line between the fuel tank and the pump. That is, incoming from the tank to the filter, then out to the fuel pump, then out from the fuel pump to the carb. (Wait for confirmation from other listers.) The filter assembly might have inlet and outlet marked as well, like the pump -- as I recall.

The filter assembly has some quirks too. The sintered filter inside can be clogged with varnished fuel. I soak them in lacquer thinner, but some hold they can't be cleaned (i.e., must be replaced). As I clean them routinely, I may be making an assumption that I'm doing some good -- not sure. Also, the glass bowl has to fit up to the rubber gasket with no air intrusion -- may need to replace the gasket. I often use a touch of OMC/BRP gasket sealer when reassembling (Permatex will work -- avoid RTV sealant.)

[edit. Here's a source -- not model specific, but pretty useful : http://www.fiberglassics.com/library/images/2/2a/Evinrudeservice001.pdf. I believe your fuel pump is shown (p. 38).]

 

[Old56]

As you suggested I think for now I'm going to take the filter out of the loop I couldn't remove the glass cylinder so I'm sure the filter must be clogged, and thanks for the site it will be very helpful and thanks for your patience I'll let you know how things progress.