mbird Posted December 15, 2009 Share Posted December 15, 2009 Hi all I thought I knew how to winterise an engine okay, until I tried today with the engines in the new boat! On most broads cruisers, the weed filter is placed between the water intake and the raw water pump. It is therefore a simple matter to unscrew the lid of the water pump and pour in antifreeze whilst the engine is running to get it circulated around the engine. Today I tried this on the AD41's ..... and got a face full of river water and antifreeze . Upon investigation, it seems I had assumed the setup was the same, and I was wrong. The water intake from the transom shield first goes through the water pump, then the filter - or in this case vertically up into my face as the lid was off the filter . This seems a bit odd to me as any crap sucked in through the water intakes then goes straight into the pump to help wear the impeller before being filtered out. I did find a live shrimp in one of the weed filters, so I can only assume the journey through the water pump is a comfortable one! In the end, I sucked as much water as I could from the pipe on the outlet side of the filter, then filled it and the filter body up with antifreeze, replaced the cap, and kicked the engine over a few times to circulate the antifreeze into the heat exchanger. This seems far from ideal to me. I want to be able to use the boat over the winter and then just quickly re-winterise on return to the mooring. Is there an easy way to do this? I thought about trying to make some adaptor for a little pump I have that would fit into the outlet opening of the weed filter, to force antifreeze into the engine from a bucket. Has anyone else managed this? For now, I've left the engine bay tube heaters turned on to be safe! Quote Link to comment Share on other sites More sharing options...
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