Topic: Correct plug wire routing for OMC mags – Antique Outboard Motor Club,Inc

This topic has 10 replies, 7 voices, and was last updated 9 years, 5 months ago by fleetwin.

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March 12, 2016 at 8:06 pm #3826
opposedtwin
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Is this the correct routing of the spark plug wires? This is a 1958 18 hp Johnson.
Scott

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March 12, 2016 at 9:09 pm #33311
fleetwin
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Looks right to me…The only thing you might do is rotate the wire clamp on the head 90 degrees to port/left side of engine, you may want to route the wires below/behind the filter clamp as well. I know the wires seem like they get squished up between the vertical throttle rod and exhaust manifold, but that is the way they were routed during assembly. Adding a flexible sleeve (like that mesh stuff) covering both wires might help keep them from getting kinked/ pinched.
March 13, 2016 at 12:36 am #33332
beerman57
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Those look too short to me. Shouldn’t they go down near the lower cowl?
March 13, 2016 at 12:52 am #33333
wiscoboater
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How the heck did you get that motor so clean?
March 13, 2016 at 1:07 am #33336
chris-p
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wannabe,

Cannot answer for Scott, but what I do to a motor that is not getting full cosmetics:

Tear off everything like mag plate, carb, etc…

Soak in WD40
Wipe off excess old grease etc…
Blow out nooks/crannies with compressed air….
Re wipe until nice and clean!

Then start cleaning every parts, re greasing and re installing as you go.
March 13, 2016 at 3:32 am #33347
opposedtwin
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Wish I could take credit but this is as purchased. It is in nice shape overall. I’m thinking it’s a low hour motor.
March 13, 2016 at 8:20 am #33353
Mumbles
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What’s missing is the spring which hooks onto the wires to take the slack out of them. It should be below the sediment bowl.
March 13, 2016 at 12:47 pm #33356
frankr
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quote Mumbles:

What’s missing is the spring which hooks onto the wires to take the slack out of them. It should be below the sediment bowl.

I was going to say that, but couldn’t find it in the parts book. Finally found it after considerable searching. Part #302827
March 13, 2016 at 1:29 pm #33359
fleetwin
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quote FrankR:

quote Mumbles:

What’s missing is the spring which hooks onto the wires to take the slack out of them. It should be below the sediment bowl.

I was going to say that, but couldn’t find it in the parts book. Finally found it after considerable searching. Part #302827

Where did you find it Frank??
March 13, 2016 at 5:09 pm #33378
frankr
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Gale book. Item #18, attached to exhaust cover & shown way out of proportion.

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