4.3 L not reaching max rpm and uses ecessive gas

by deke
(east hampton ct usa)

1989 4.3L will not reach full rpm and now burns about 12.5 gph after new prop installed same prop as old.

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Aug 22, 2010
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new prop same as old
by: jcc

the old prop blades flatten out over time, the new prop has too much pitch for the age of the boat, meaning that they get heavier and the intake needs cleaning. switch to a pitch 2p less

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