Dandas Posted September 14, 2016 Report Share Posted September 14, 2016 Anyone experienced loss of all gear box oil with no apparent leak. RCR called out & they couldn't find a leak. After topping up there has been no loss - the gearbox is PRM150D2. Now monitoring it every couple of hours - anyone have any solutions? Link to comment Share on other sites More sharing options...
cuthound Posted September 14, 2016 Report Share Posted September 14, 2016 Had this with my father-in-laws MGB. It had a tiny leak from the drain plug, which drained it over a period of several years. The only mileage he did was to and from the MoT Station every year. Doubt this is the case with a boat unless it is hardly ever used. Link to comment Share on other sites More sharing options...
The Bagdad Boatman (waits) Posted September 14, 2016 Report Share Posted September 14, 2016 Spread a piece of cardboard under the gearbox , maybe on a couple of clean bricks to keep it out of the bilge Link to comment Share on other sites More sharing options...
Machpoint005 Posted September 14, 2016 Report Share Posted September 14, 2016 Spread a piece of cardboard under the gearbox , maybe on a couple of clean bricks to keep it out of the bilge That won't help if there's no oil in the gearbox (snigger). Link to comment Share on other sites More sharing options...
cereal tiller Posted September 14, 2016 Report Share Posted September 14, 2016 (edited) Anyone experienced loss of all gear box oil with no apparent leak. RCR called out & they couldn't find a leak. After topping up there has been no loss - the gearbox is PRM150D2. Now monitoring it every couple of hours - anyone have any solutions? Should the P.R.M have an oil cooler,it may have developed a pinhole Have you looked in the Engine water filler cap for traces of oil? CT Edited September 14, 2016 by cereal tiller Link to comment Share on other sites More sharing options...
Geo Posted September 14, 2016 Report Share Posted September 14, 2016 (edited) Should the P.R.M have an oil cooler,it may have developed a pinhole Have you looked in the Engine water filler cap for traces of oil? CT Can't see how oil from a PRM 150 gearbox is going to affect the engine. @OP PRMs favourite leaking point is the operating shaft on the left hand side. If it has been leaking there is frequently oil on the side of the case below the shaft. If it has an oil cooler there will be two hydraulic type pipes out of the to left of the gear box going to the cooling radiator. Left side looking towards the bow of the boat. Could be worthwhile to check along the pipes and the radiator for signs of oil. Of course that all begs the question when was the last time that the oil level was checked, today when the engine oil was check or like most months ago. Edited September 14, 2016 by Geo Link to comment Share on other sites More sharing options...
Tony Dunkley Posted September 14, 2016 Report Share Posted September 14, 2016 Can't see how oil from a PRM 150 gearbox is going to affect the engine. If the engine is keel or skin tank cooled, then the gearbox cooler will be in the engine water circuit. Link to comment Share on other sites More sharing options...
system 4-50 Posted September 14, 2016 Report Share Posted September 14, 2016 Can't see how oil from a PRM 150 gearbox is going to affect the engine. It did on mine. Fractured oil cooler put a bit of oil in the engine coolant. Link to comment Share on other sites More sharing options...
Geo Posted September 14, 2016 Report Share Posted September 14, 2016 If the engine is keel or skin tank cooled, then the gearbox cooler will be in the engine water circuit. Thanks Tony, to used to air cooled engines, brain sleeping as well. Link to comment Share on other sites More sharing options...
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