Problem solved!

Thank you for your helpful responses.

It turned out that the replacement impeller purchased at Ebasicpower online
was not the proper thickness. Once I replaced the impeller with a "fatter"
impeller and it pumped water immediately and overheating stopped. The
thinner impeller was not generating enough suction pressure to pump the
water out of the lake.

I noticed that the Ebasicpower impeller was thinner, but I figured they knew
what there were selling especially since i bought another one later as a
spare and it was the same size. This company has been aggravating since the
thermostat I bought from them did not even remotely resemble the my
thermostat even though I gave them the correct specs of my engine.

Also, last year a starter I purchased from them went kaput as well. The
metal around the pinion gear shatterred, causing me to pick the pieces out
on my flywheel housing.

I am finished with this E-retailer and probably with any mail order boat
parts. Its definitely worth paying more at your local boat shop to see the
parts when you buy them for correctness as well as quality.


Saltare

"saltare" wrote in message
y.com...
I have an 85 Supra Saltare witha PCM 454 Chevy inboard engine that is
overheating as soon as it gets revved over idle speed. I have replaced
impeller, thermostat, and water pump with no change. I know the hose is
clear from the impeller to the water intake under the boat, because I ran
water from the impeller down to the water intake, but it doesn't appear to
be taking the water in up to the impeller. I checked this by unhooking
the
hose from the impeller to the thermostate housing and its not getting any
water. I know the impeller is turning i.e. turning gear operates
correctly
and belt is not slipping. I am at wits end. Does anyone have any ideas?


Thanks

Saltare