Topic: Merc wont stay running – Antique Outboard Motor Club,Inc

This topic has 7 replies, 3 voices, and was last updated 3 years, 6 months ago by dave-bernard.

Viewing 8 posts - 1 through 8 (of 8 total)

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September 26, 2020 at 2:32 pm #217333
wrenchero
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US Member - 2 Years
Hello, working on a 1963 merc 110 9.8hp.replaced water pump grommet and now pumping good.cleaned and gapped points,replaced condensers.took carb and fuel pump apart and cleaned out. Engine starts and shuts off after 10-20 seconds. Hard to restart.primer bulb stays hard?? Any help appreciated

mn
September 26, 2020 at 3:45 pm #217338
dave-bernard
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US Member - 1 Year (includes $3 online payment fee)
IF it has the small pump. they were a problem. which do you have? Pics.
September 26, 2020 at 4:29 pm #217340
wrenchero
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US Member - 2 Years
Is the outer pump body supposed to have 2 check valved

mn
September 26, 2020 at 5:15 pm #217350
jeff-register
Participant
US Member - 2 Years
With it running the bulb should be soft as fuel is flowing. Check valves may be reversed. Or sucking air somewhere.
- This reply was modified 3 years, 6 months ago by jeff-register.
September 26, 2020 at 5:30 pm #217356
wrenchero
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US Member - 2 Years
It only has 1 check valve

mn
September 26, 2020 at 9:16 pm #217367
dave-bernard
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US Member - 1 Year (includes $3 online payment fee)
2 check valves are needed. change to the newer pump with larger check valves. easy to do. 1 914 310 7086 Dave.
October 5, 2020 at 8:45 pm #217910
wrenchero
Participant
US Member - 2 Years
update! replaced fuel pump and engine runs great. does the idle mixture screw adjust fuel or air on this engine

mn
October 5, 2020 at 9:22 pm #217913
dave-bernard
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US Member - 1 Year (includes $3 online payment fee)
out rich in lean
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Merc wont stay running

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