08-18-2008, 01:46 AM
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#2
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mikeyt is currently offline
Status: Platinum Contributor
Join Date: Jul 2007
Location: Ontario
Find me on the Map
My Year: 1996
My Model: Shabah 180
My Engine: 4.3
Thanks: 87
Thanked 579 Times in 538 Posts
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Quote:
Originally Posted by 97180SE
Hello all. Great site! I took my new-to-me 97 180 Shabah SE 4.3 Alpha out today for the first time and have a couple of questions. I used to have an 86 Celebrity 18 and this Mariah is awesome compared to the Celebrity. The only things I noticed about this boat was the WOT RPM seems quite high, 5000 Wide Open on plane. The Atwood blower seems a little loud and the Lowrance digital depth finder has power but doesn't display a depth reading. This thing just jumps out of the water on plane it takes about 2-3 seconds and she is up. It handles great! I love it! Now I understand why everybody talks so highly of them. Thanks again for the great site.
Jay
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Welcome aboard Jay. 5000rpm at WOT is just slightly high. The rpm range for the 4.3 is 4400 - 4800. Not sure what prop you have but if it's a 19 pitch you could move up to a 21" pitch. It will drop your rpms about 400 and give you a little higher top speed but you will lose that 'jump' out of the hole. 5000rpm shouldn't hurt anything though but to be safe i wouldn't run it at that for any length of time. The Atwood blower on mine is a little loud also. You could easily replace it with a new one but 'tis up to you. I'd rather here it working.  It's a straight forward change though.
If the depth finder has power but wont provide a reading then it is likely that the transducer has come loose from it's mounted position. I dont have one in mine but i believe it is mounted underneath the engine. They do seem to have a habit of working themselves loose over time and a couple of the others here have posted about similar problems.
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