Topic: 1957 Evinrude 5.5 stalls out when put in gear.

This topic has 8 replies, 4 voices, and was last updated 1 year, 3 months ago by fleetwin.

Viewing 9 posts - 1 through 9 (of 9 total)

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July 20, 2024 at 12:26 pm #289289
russ
Participant
New to me motor that I installed new points condensors coils and wires good spark on both cylinders.95 psi on both cylinders.Carb cleaned and new OMC carb kit installed needle valves set motor does run but stalls out when put in gear.Also tried a liitle bit faster on idle to shift same result.Had intake off gaskets look ok no goop or material missing.Fuel tank works good it is a daily user.Some water pumping out exhaust.Took carb apart again reinstalled. put another set of condensors on but no change.Just wondering if anyone has any ideas of what to try next.All my parts are OMC and are new. Russ…
July 20, 2024 at 5:24 pm #289294
wedgie
Participant
There is a shock absorber above the gearcase that often breaks. Put it in gear with the plugs disconnected and pull it over. If it is fighting you, that’s probably your problem. The fix is to weld it and use a shear pin on the prop/prop shaft instead.
July 20, 2024 at 9:05 pm #289299
fleetwin
Participant
US Member
Sounds like the culprit indeed. Drain your gear lube and have a look. If the gear lube is real milky, or raw water is present, that supports this diagnosis as well.
July 21, 2024 at 6:01 am #289304
russ
Participant
Ok thanks I will give this a try.
July 21, 2024 at 8:40 am #289307
russ
Participant
Tried by pulling wires off no difference in forward gear or neutral when pulling recoil.Gear lube is ok no milky colour. Thanks for your input. Russ….
July 26, 2024 at 5:06 pm #289449
fleetwin
Participant
US Member
OK, well perhaps the engine is only running on one cylinder. They will rev up just great in neutral on one cylinder, but will die out when put in gear.
July 27, 2024 at 4:31 pm #289465
russ
Participant
Have changed condensors and cleaned points .Will try a new coil and see what happens. thanks again Russ
July 28, 2024 at 6:40 am #289484
aquasonic
Participant
How about testing for spark? It’s diagnostics that will narrow down the problem. The neon spark testers are very inexpensive and widely available on Amazon, Ebay, etc. A few years ago, they were about $3 a piece. They are not as good as a spark gap tester, but they are useful.

Improvise-Adapt-Overcome
July 28, 2024 at 5:28 pm #289503
fleetwin
Participant
US Member
aquasonic wrote:

How about testing for spark? It’s diagnostics that will narrow down the problem. The neon spark testers are very inexpensive and widely available on Amazon, Ebay, etc. A few years ago, they were about $3 a piece. They are not as good as a spark gap tester, but they are useful.

This seems like the best advice….
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