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Jim Jim is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 338
Default winterizing mercruiser?


"JohnH" wrote in message
...
On Mon, 30 Oct 2006 03:55:09 GMT, "D&LBusch"
wrote:

Do I need to drain the block and hoses if I'm using one of those coolant
kits that attaches to the muffs on the outdrive? It would appear not.
since it is sucking in the Anti Freeze and will displace any water left in
the block. Thanks in advance. David


Once the anti-freeze is running out the exhaust, you're good to go.


Not necessarily so. The cooling system is designed so that the majority of
the water that comes in, goes straight to the manifolds and or risers, then
out the exhaust. That is true even if the thermostat is wide open, which it
almost never is, while idling. The question is: How much of that -50 doo doo
do you have to use to displace all of the water in the engine using the
engine running, flush method with the "engine winterizing kit".
Jim