Best way to dry/clean wet mags?

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Lil Wayne
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Best way to dry/clean wet mags?

Post by Lil Wayne » Thu Jun 14, 2018 1:48 pm

Got caught in a sudden downpour on tuesday and had to run back to the ramp thru heavy rain. Since then, the boat acts like its running on one mag half the time. Usually idles at 650 rpm and runs at 2500 at WOT. Now it'll suddenly run rough, (barely) idle at 300 and run at 1500 WOT. Then it'll go back to normal.

Engine is a lycoming o360 with low compression pistons, 350 hours since rebuild, and new ngk plugs about 20 hours ago. Has always run great on 93 octane.

So far ive tried taking out the plastic plug on the side of the mags and blowing 120° air into them with a heat gun to try and dry em out, checked the connections to the plugs, and bypassing the mag switches, with no luck.

I dont know how to time the mags so I'm a little hesitant about fiddling with them too much without guidance. Theres a plate on the front of the mags where the plug wires come out, can that be removed without effecting the timing?

Any hints would be appreciated, I'd like to get this figured out before breaking down and taking it to the mechanic.
I make it rain...

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Lil Wayne
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Location: North Florida

Re: Best way to dry/clean wet mags?

Post by Lil Wayne » Thu Jun 14, 2018 2:06 pm

If I'm doing it right here's some pics of the mags
0614181305a-873x1164.jpg
0614181305-873x1164.jpg
I make it rain...

GMAC 76
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Re: Best way to dry/clean wet mags?

Post by GMAC 76 » Thu Jun 14, 2018 2:22 pm

you can take the plug wire cap off and the points cover just below it off without disturbing the timing...just fyi you have 2 different series mags there one is a 20 the other a 200.both bendix...its not a problem just wanted ya to know they will look different when ya pull the cover off....ya might find some moisture in the plug wire caps if the wires are not sealed and maybe some in the points/condenser cavity you could blow out...don't be afraid to pull em off nothing will happen to the timing

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Lil Wayne
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Re: Best way to dry/clean wet mags?

Post by Lil Wayne » Thu Jun 14, 2018 2:28 pm

Thanks gmac, is it safe (or a good idea) to use an aerosol electric connection cleaner on the points?
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GMAC 76
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Re: Best way to dry/clean wet mags?

Post by GMAC 76 » Thu Jun 14, 2018 2:47 pm

don't see why not.....just make sure its clean and dry before ya fire it up

Seadrift
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Re: Best way to dry/clean wet mags?

Post by Seadrift » Thu Jun 14, 2018 3:15 pm

FYI WD 40 , the WD stands for water displacement always keep a can in the boat, works great for drying mags
2000 Combee 18' / TIO 541 Don't laff, it takes me there and brings me back.

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