Theoutdoorsman
Senior Chief Petty Officer
- Joined
- Mar 6, 2003
- Messages
- 669
Because there are so many variations of these fuel pumps still being used in outboards across the globe, and so little documentation available for rebuilding them, I thought I'd throw this out there to help someone else who might be in need of rebuilding their own. The OEM parts manuals and OEM service manuals do not list an exploded diagram, to use as a visual reference, when disassembling and reassembling these pumps. A special thank you goes out to "Garzaglass" for his help in clarifying the proper placement! At any rate this fuel pump (p/n: 388268) and kit (p/n: OMC 393103), is for a 1979 Evinrude 140 hp. However, I know that there are several different models, and various hp outboards (Johnson included), that used roughly the same fuel pump. Before we get started, be very careful when disassembling the pump so as to not loose the springs that are hidden within. Take things slow and keep a watchful eye out just in case a spring should decide to come out unexpededly and fall to the floor. They are somewhat small, and will be difficult to find if one should jump out. Too, the kit will likely not come with a replacement. With that said, on to the pump. I'm simply not sure of all the various applications, but I'll list what I understand that this particular kit fits:
HP...................Year
9.9...............1981
15................1981
20................1977 - 1986
25................1977 - 1986
25................1982
30................1976 - 1986
35................1976 - 1986
40................1970 - 1978
50................1982 - 1984
55................1976 - 1978
55................1983-1984
60................1970 - 1971
60................1982 - 1984
65................1972 - 1973
65................1985 - 1987
70................1974 - 1978
70................1982 - 1984
75................1975 - 1978
75................1982 - 1984
85................1978 - 1983
90................1978 - 1983
115..............1978 - 1983
140..............1978 - 1983
150..............1982 - 1983
175..............1982 - 1983
200..............1982
235..............1983
I know that someone out there WILL find this extremely helpful in the correct placement of their newly purchased parts. It's the ONLY visual reference that I am aware of.
SPECIAL MENTION!: as per "HighTrim"
The parts must be in an exact position and in an exact relationship to the other corresponding parts. Once assembly is complete, test it by blowing through the pumps inlet very gently. You should be able to feel the air flow via the outlet. You should "NOT" be able to blow through the pump via blowing into the outlet. If the pump does not pass the "blow through" test, it will need to be disassembled, checked for errors, and reassembled correctly. Once the pump passes the "blow through" test, and is installed on the outboard, prime the bulb to ensure no leaks are present at the pump or any connections. If leak(s) are present, make absolutely certain they are corrected prior to test run.
HP...................Year
9.9...............1981
15................1981
20................1977 - 1986
25................1977 - 1986
25................1982
30................1976 - 1986
35................1976 - 1986
40................1970 - 1978
50................1982 - 1984
55................1976 - 1978
55................1983-1984
60................1970 - 1971
60................1982 - 1984
65................1972 - 1973
65................1985 - 1987
70................1974 - 1978
70................1982 - 1984
75................1975 - 1978
75................1982 - 1984
85................1978 - 1983
90................1978 - 1983
115..............1978 - 1983
140..............1978 - 1983
150..............1982 - 1983
175..............1982 - 1983
200..............1982
235..............1983
I know that someone out there WILL find this extremely helpful in the correct placement of their newly purchased parts. It's the ONLY visual reference that I am aware of.
SPECIAL MENTION!: as per "HighTrim"
The parts must be in an exact position and in an exact relationship to the other corresponding parts. Once assembly is complete, test it by blowing through the pumps inlet very gently. You should be able to feel the air flow via the outlet. You should "NOT" be able to blow through the pump via blowing into the outlet. If the pump does not pass the "blow through" test, it will need to be disassembled, checked for errors, and reassembled correctly. Once the pump passes the "blow through" test, and is installed on the outboard, prime the bulb to ensure no leaks are present at the pump or any connections. If leak(s) are present, make absolutely certain they are corrected prior to test run.
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