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OilFuel slick at startup and idle speeds

johnwel

New member
"I have twin Perkins ST6-3544.

"I have twin Perkins ST6-3544. When first starting, some white smoke that clears after awhile, but also have oil/fuel slick.. approx 50 Sq Ft in area. Cruised for about an hour. Started engines after 48 hrs.. some slick, but smaller. However, when docking and manuevering in idle, discovered another slick. Injectors were replaced approx 4 yrs ago. Suggestions?"
 
Re: "I have twin Perkins ST6-3544.

I had a fuel slick eminating from the exhaust at idle on my 4.236 one day. Also seemed to idle a little rough, then pick up for 30 seconds, then idle rough for a minute or two again. Figured out my air cleaner was super clogged. Thing was running way rich so unburnt fuel was creating the slick. Might not be same as your challenge, but make sure the air intake side is clean and good to go
 
Re: "I have twin Perkins ST6-3544.

You may want to pull an injector and have a look at it. I pulled the injectors on my 6-354 NAs, and they looked like charcoal briquettes.
Off for rebuild...
 
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