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On my previous boat with QSC600 engines, I had a similar problem with the condition of the remote pipes and hoses on my stbd engine, so I just removed the lot and mounted the oil filter directly on the engine.Ā If you can get to the hoses and pipes at the engine to remove and replace them, you should be able to get to an oil filter fitted there.Ā Not only did removing the remote piping etc tidy up around the engine, it also gave better oil pressure at the engine, very similar to the other engine.Ā Just something else to think about. Also, I found a very tiny crack in one of the oil pipes where the bracket was welded to the pipes.Ā See 3rd photo.
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Is the oil filter on your starb engine remote mounted?Ā If so, this is probably the reason for the lower oil pressure compared to the port engine.Ā I had a similar discrepancy on my previous boat which was fitted with QSC600 engines and once I removed the remote set up and mounted the oil filter directly on the engine, the oil pressures were the same, give or take a few psi.
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I recently had a similar problem (different engine to yours) with an oil sheen coming out of my port engine exhaust.Ā After eliminating the possible fuel sources, I bypassed the water side of the transmission oil cooler and started the engine.Ā This put normal gear oil pressure on the cooler and I was able to look into the water side.Ā Bingo!
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I would be looking a replacing the temperature sensor in stbd zeus drive , or at least swapping them over to see if the fault goes with it. 76C at 600RPM in neutral is most probably not due to the cooler or the water flow. For your refence, my last boat had triple QSC600/Zeus drives and when cruising at 2400 rpm, the gear oil temperature never got over 65C at 25C water temperature and there was never more than 3 degrees difference between the three engines.Ā Ā
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And then spray with Mercury Corrosion Guard and repeat annually (as per the maintenance manual). This was done on mine from new and after nine years and they are still as good as new (well they were when I sold the boat last month).
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I have noticed a similar discrepancy on my boat. The hour meter on the Onan MDKBT generator itself is currently 1858.9 and I believe this to be accurate (as Tony says) and what I record and use for maintenance purposes. The Vessel View is showing 1881.0 hours (after 8.5 years). After a quick look at the Onan wiring diagram and the interface connections to Smartcraft, it looks like a ‘run’ signal (positive voltage) goes to the Vessel View and it relies on the internal clock of the Vessel View to ‘count the run time’. I can’t see anyway of adjusting this and to be perfectly honest, it doesn’t bother me. I have also noticed the the current time hh:mm ‘clock’ in the Vessel View gains time compared to the GPS clock (which is highly accurate) so I am presuming that this faster clock mechanism in the Vessel View is why the generator run hours are greater than the actual hours. Just my thoughts and others may have a different opinion.
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