Originally Posted by
JParanee
So besides a kit I need to buy a water pump ?
I know that the Merc kit does not require one , all it is is a tank , bracket or two and some different hoses.
Now, the stuff that George is talking about , I'm not sure . I know he will advise you though !
As for George's remark about the increasing use of dissimilar metals in engine construction AND yellers remarks about his success with flushing , they're all valid remarks. So I wouldn't want to take away from either's POV.
Interestingly , here's what I found out some time ago . When I ordered the new power package for my ST T I really wanted FWC but I didn't think it would fit in the very limited space available. The guy who supplied my package said that , without explaining why , he ordered all of his engines with the factory FWC option anyway .
I later found out , once I got my hands on the owner's manual , that the intake manifold is alloy so having a raw water cooled engine , much less one that stays in the water for months would have been a disaster without it.
Then I subsequently find out that the intake manifolds on the Merc 502s are also alloy and over on OSO I saw a thread similar to this one where a few people who were also religious flushers but there was a spot here and there that the salt pocketed in and ended up doing severe damage .
Just because something's old doesn't mean you throw it away !