Quote:
Originally Posted by Dave R
I was wrong about the pumps needing to operate at different speeds, some Alpha upper gear cases (1:1.65) have 24 tooth drive and 24 tooth driven gears (1:1 upper gear case ratio) so that means the pump operates at engine speed. Also, I looked at my Bravo pump and it has roughly the same size pulley as the crankshaft, so it operates at engine speed too.
I agree, they should change the design to use the Alpha impeller in the engine mounted bravo pump.
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I guess I'm a little confused. :..."
some Alpha upper gear cases (1:1.65) have 24 tooth drive and 24 tooth driven gears".
SO: As you state.. 24/24 equals 1:1 .. I guess your 1:1:65 comment has me confused. Is the 1.65 gear ratio achieved in the LOWER gear case in the Alpha 1..? Just wondering..
NB