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On May 28, 11:05*am, John H. wrote:
On Wed, 28 May 2008 09:57:16 -0400, "jamesgangnc" wrote:
"HK" wrote in message
...
jamesgangnc wrote:
wrote in message
....
I just realized they don't use a radiator and only circulate the
water. If the block is drained, why add antifreeze?

Most people simply drain the block and do not add antifreeze. *All the
blocks have a drain plug at the lowest point in them. *There is also
typically drain plugs on the exhaust manifolds or you disconnect the
hoses going into the bottoms of the exhaust manifolds. *Often you
disconnect the hose coming in from the outside as well. *On a Mercrusier
this often will be going to a water exchange power steering fluid cooler.
The out drive should be lowered for storage and it will drain it's self
in this position.

Unless you have one of the more sophisticated closed cooling systems
there is not any antifreeze anywhere. *"Raw water" cools everything and
then is pumped back out with the exhaust. *There are closed systems that
have a water exchange radiator instead of an air exchange one. *It will
look like a big tank somewhere on the front of the engine. *They still
need the raw water sections drained but it's not likely your friend has
one of these.

The oil is usually pumped out the dipstick tube. *There are electric
pumps and cheaper hand pumps. *It is way easier to get the oil if you run
the engine and get the oil hot first. *Don't run it on land without the
rubber garden hose muffs hooked to the outdrive and the water turned on.