The video is worth watching. It doesn't look like it's associated with the water pump. It looks like a hole missing a plug. I'd show the video to an engine mechanic and see what he says. The plug must have vibrated out and is hiding in the bilge under a hose. Chuck, Resolute, 1989 C&C 34R, Pasadena Md
> On 06/09/2026 11:21 AM EDT Della Barba, Joe via CnC-List > <[email protected]> wrote: > > > > I am guessing here, but is this hole near the water pump? On my Atomic 4 the > water pump drive has a water seal and an oil seal and a hole in the middle. > If it leaks water the pump end seal is leaking and if it leaks oil the engine > end seal is leaking. > > > > Joe Della Barba > > Coquina > > C&C 35 MK I > > > > From: Todd Williams via CnC-List <[email protected]> > Sent: Tuesday, June 9, 2026 9:43 AM > To: Stus-List <[email protected]> > Cc: Todd Williams <[email protected]> > Subject: [EXTERNAL] Stus-List Oil Leak - Universal Diesel 5416 > > > > Indigo Out We Go (1980 C&C 34) went in the water on Wednesday! We motored > three hours to our mooring and as we were leaving the boat I noticed an oily > streak on the outside of the hull at the bilge output. > > > > I went back yesterday to investigate and found the bilge full of oil. > Dipstick reads low so I added a quart of oil to identify the details of the > leak. Oil is pouring out of a manufactured hole in the engine block (see > video) in the front right part of the engine below the raw water pump and > left (when viewed from the salon) of the front motor mount. Of course, very > difficult to access. I don’t see a plug lying loose in the bilge nearby. > > > > https://drive.google.com/drive/folders/1kovA-y1sGBB22IaUBoVRDabmfSAiWcTL > > > > It is a manufactured hole but it is not described in the Westerbeke parts > manual (picture in folder). It is near part 3 (plug) but there are two holes > in that area and the one that I have leaking is different. It does not look > threaded. I can stick a wire up it about 2”. > > > > As anyone experienced this leak? What was your solution? > > > > Is there a knowledgeable professional source on Universal / Westerbeke diesel > engines from 46 years ago? > > > > Thanks, > > > > Todd > > Saco, ME > > Please help cover the costs of maintaining this list by making a small > contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All > contributions are greatly appreciated. >
Please help cover the costs of maintaining this list by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
