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boat takes on a lot of water, bilge runs all the time, engines boog down and low speed 13mph max

zipper

Jetboaters Fleet Admiral 1*
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Location
Northern Vermont Lake Champlain
Boat Make
Boston Whaler
Year
1995
Boat Model
Other
Boat Length
18
Pull the clean out tray and take a look into the real bilge. You will see the scupper thru hull and be able to test it/see it if it's leaking.
 
Last edited:

Tahoeboater

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Year
2016
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AR
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OK, the anchor locker...took out the plastic that is sposed to fit the yamaha anchor (not what I have) with clear view now of the drain hole. Mine is not bad, almost made it into the locker. Slightly below edge the tube is protruding. 4200 around the tube to seal, don't think that could be the water problem. Then got into the engine side of the scupper valve. I have the plastic body and valve. Gave it a good tug and twist. The hose clamp was very loose, hose spun around. took off the hose to inspect the hose and scupper. All looked good, reinstalled the hose clamp, good and tight. The flapper on the lake side was good and not sure if the loose hose could be the cause, need to go back on the water. Ran water through both engines ran to 2500 rpm, no obvious water in the engine compartment and thanks to this forum didn't panic with H2O comming out the exhuast or thermostat or out the jet. All looked normal, no water out any hose in engine area. Pissers slightly pissing so figure with all this cooling water is not the problem. Appears a new water temp and depth transducer was installed (its near the intake on the port side jet). Looking through the paperwork it is a AIRMAR DT800V. In a sealed baggie was an O-ring with an install instruction that says its for a retrofit insert in housing without a valve. Take out the "yellow O-Ring out and replace with this one or water may leak into the vessel". Don't know what without a valve means. WTF did they install this without the correct o-ring??? The plastic housing is flush to the hull and silicon appears to be smeared on the housing to hull but not sure if the membrane in the middle allows water around it and then the wrong O-ring on the backside??? Anyone have experience with this sensor?

Low RPM and slow speed is being chalked up by the yamaha delear as lack of oxygen and wrong pitch impellers, along with water uptake weighing down the boat. Anyone think of how to get more Ox so the computer wont limit the fuel to match the Ox intake. That would answer the low RPM's and slow max speed. Will the lower pitch impellers really help at 6250 feet on Lake Tahoe.

Thanks again, in advanc, for inputs, advise, know how, experience!
 
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