Yanmar 3gm30 cooling system. To prevent the seawater side from freezing.
Yanmar 3gm30 cooling system A step by step guide as to how we flushed through the coolant system on our Marine Yanmar 3GM30F Diesel engine. The motor is a Yanmar 3GM30F with a remote reservoir and a SureCal calorifier. I'd like to change the coolant in my Yanmar 3GM30F. As to how to drain the Yanmar fresh water cooling system, I agree the shop manual is short on details. There is also a drain point for the sea water on the heat exchanger. Changing the engine coolant in the Yanmar 3GM30F series Engine This article provides a set of directions for flushing the engine antifreeze in the Yanmar engine. I've located 2 drain petcocks: port side just behind the alternator ; stbd side above the oil dipstick. If it's not that, then I ain't got nothing more helpful. Have you bled the engine? The shut down might have been coincidental to the amount of time it took for an air bubble to work its way through. We have 5 Yanmar 3GM30 Marine Diesel Engine manuals available for free PDF download: Service Manual, Shop Manual, User Manual, Operation Manual Why is he putting antifreeze in the raw water (sea water) side? The coolant is in a closed system. It specifically addresses the Yanmar Japanese Yanmar 3GM, although this procedure should be the same for the European Yanmar 3GM as well. The motor is a Yanmar 3GM30F with a remote reservoir and a SureCal calorifier. . To prevent the seawater side from freezing. I hired a Yanmar shop to do the first flush of my 4JH3-TE, and there is a very easy and mess free way to completely drain the block and collect all the toxic (see Chuck's post) waste antifreeze. There are 2 drain points for the coolant, 1 near the oil filter and 1 under the heat exchanger. These are 1/2 diameter screw knobs with clear plastic drain hoses. Manuals and User Guides for Yanmar 3GM30 Marine Diesel Engine. ldyfrgtbkfszeglveojzzrnygwerjvkrznhuozupuvrgwpbv