Quint

The incoming 2-stroke oil injection lineon my Merc 94' 200HP (non-EFI)has a brass t-fitting about three inches before the motor oiltank.One side of the t-fitting appears to be some type of drain/vent line...it's about 6 inches long and empties into the bottom engine cowling. The other side of the t-fitting goes to the oil tank.

What would cause excess oil to dribble out the drain/vent line? I suspect that eitherthe brass t-fittinghas a faulty check valve or maybe a faulty crank case check valve not releasing pressure on the oil tank after shut down. Any ideas?

DOUBLE "D" & LV

The check valve is bad on that "t". Replace it and you'll be fine.

Quint

Thanks. After replacing the check valve, do I need to be concerned with priming the lines to work out any air bubbles?

DOUBLE "D" & LV

You will not loose enough oil when changing the t fitting. The system will fill back normal. If you notice that the engine oil tank is down more than 1/2 an inch, then you should burp the system. To do so, run the engine for 2-3 minutes on the flusher and loosten the engine tank cap a little. Watch the oil level rise until it reaches the bottom of the cap neck, then tighten the cap. You may have a little bit of oil come out until you tighten the cap.... just wipe it up.

Quint

Thanks for the advice. Sounds like a cheap fix.