I have twin 440hp 6LY2A-STP and had a Check "CW Level light come" on and a little smoke (a slight burning smell) coming from under the silver boot that goes over the Turbo where it attaches to the engine
. It happened at 2800 RPM
(cruising RPM) but no overheat problem at all. I pulled her back to 2500 RPM
the light did not come on again and smoke stopped. When I got home and checked motor
again (when cool) and expansion tank was nearly full and has not drained back. During the run home I checked motor
temps with a heat gun and all seemed fine (actually lower than other side).
Any suggestions I am thinking maybe radiator cape problem anything else I should look for?