Pearson Boats - Common Systems > Engine and Drive Train

MD11c water leak.

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Sanctuary:
Schematic you have is for an MD17C and is a different beast altogether.. #8 is a 17C oil dipstick tube

The intake side is on the STBD or Air filter side.  The exhaust side is on the PORT or outlet pipe/exhaust wet pipe. The only water stuff down low on the engine is on the exhaust side. There are 2 drains which may have been replaced ( I did with mine and use zincs) or maybe leaking. Otherwise the only water stuff is the hose and piping under the exhaust manifold.

  https://www.marinepartseurope.com/en/volvo-penta-explodedview-7742230-21-15101.aspx

 is the same part schematic for your 11C. There are 2 drains (#41 & #42) there that could be leaking. You can simply unscrew or drill them out and use 1/8" NPT brass pipe plugs.  Any way to get a picture of it? Ideally from 18" away and with a yellow pencil pointing to the offending part? If it's down below the elbow and petcock may be what you are looking at but it may look unlike the picture after 35+ years.

Hope this helps.

Al

Bill1188:
When I am at the boat this weekend, I will take a photo of the offending part.

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