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Old 03-11-2007, 03:02 PM
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Default Crossover Or Waterpump

i'm within a few weeks of unwinterizing my boat and know that my engine needs a new waterpump
my question is , should i just put a new mercruiser waterpump back in place , or should i install a crossover and the thermostat housing that matches?
i'v found the parts online and its not very expensive , neither is the water pump for that matter , does the engine circulating pump actually drag that many ponies? and if i do the changeover , does the stock seawater pump for a bravo1 drive supply e-nuff water to cool the engine even at idle ?
another question is the belts , eliminating the water pump , how do i order the smaller belts that run my power steering pump / alternator / seawater pump?
the engine is a stock 454/330 , 1988 in a 24 foot Checkmate enforcer , everthing seems to be doing well , last year i got 4800 rpm @ 60 miles per hour (i lil too much prop slippage) but thats a different issue

thanks in advance for any help
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Old 03-11-2007, 03:46 PM
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I had to go to a crossover, and a different t stat housing on my 330 horse when I changed exhaust.
Attached Thumbnails Crossover Or Waterpump-1-2-07-006.jpg   Crossover Or Waterpump-1-16-002.jpg   Crossover Or Waterpump-1-16-004.jpg  

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Old 03-11-2007, 05:26 PM
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be prepaired ... there are a gazillion different opinions on this subject ....m

http://www.offshoreonly.com/forums/s...d.php?t=148666
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Old 03-12-2007, 03:47 AM
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Originally Posted by cuda
I had to go to a crossover, and a different t stat housing on my 330 horse when I changed exhaust.
That sure looks squeaky clean !
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Old 03-12-2007, 06:37 AM
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This topic has been discussed more times than enough and in my opinion a correct answer was never given. What i got out of it is that water pressure in the block is a issue and the dealers that sell crossovers do not mention this . This is the biggest issue We will see what pops up this time.
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Old 03-12-2007, 07:29 AM
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Originally Posted by cig1988
That sure looks squeaky clean !
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Old 03-12-2007, 09:28 AM
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Thanks Guys , Looks Like I'm Gonna Stick To The Stock Setup With A Circulating Pump
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Old 03-12-2007, 09:56 AM
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I went with a crossover and t-stat on my 330hp and have zero problems with cooling,and it looks a hell of a lot better.
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Old 03-12-2007, 09:57 AM
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Go stock
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