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  1. Diesel
    Hi Sailnet, I've recently acquired a 30 year old Yanmar 3GMD which runs at 67C (152.6F) at the crankcase when revved to 1800rpm after a few minutes. This is a little hot for my liking as I'd like to try and get it to 2000rpm if possible - beating into 25knt wind in a very narrow and shallow...
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