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Ruby Red Lip
 
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Last Login: 1/30/2010 2:27:16 PM
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| The incoming 2-stroke oil injection line on my Merc 94' 200HP (non-EFI) has a brass t-fitting about three inches before the motor oil tank. 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 either the brass t-fitting has a faulty check valve or maybe a faulty crank case check valve not releasing pressure on the oil tank after shut down. Any ideas?
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Grouper
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The check valve is bad on that "t". Replace it and you'll be fine.
Davlor Marine, LLC mobile marine repairs, maintenance, and installations 850-777-7303 www.davlormarine.webs.com
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Ruby Red Lip
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Last Login: 1/30/2010 2:27:16 PM
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| Thanks. After replacing the check valve, do I need to be concerned with priming the lines to work out any air bubbles?
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Grouper
Group: Forum Members
Last Login: Today @ 9:11:11 AM
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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.
Davlor Marine, LLC mobile marine repairs, maintenance, and installations 850-777-7303 www.davlormarine.webs.com
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Ruby Red Lip
Group: Forum Members
Last Login: 1/30/2010 2:27:16 PM
Posts: 58,
Visits: 1,176
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| Thanks for the advice. Sounds like a cheap fix.
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