Engine Reversal and EFI

[John G. Napoli]

Reverse-spin motors also need provision for distributor thrust.  I believe
that this is handled by reversing the cut of the gear on the cam and a
'reversed' dist drive gear.

>
>On Wed, 24 Jan 1996, Clinton L. Corbin wrote:
>
>> >down.  Often twin engine installations in boats run the engines in 
>> >opposite directions, so you might look into SBC marine setups to see if 
>> >a reverse direction engine is produced, and what they've done to 
>> >support it.
>> >
>> >/Bill
>
>> My understanding of the twin (and triple) engine installations in off-shore
>> power boats is that both (or all three) engines turn in the same direction.
>> The only difference is that the outdrive (be it sterndrive, v-drive, or 
>> other) is geared for reverse rotation.  Just my two bits...
>
>     I've seen it done both ways, but most commonly one motor is 
>reversed.  Every reverse-rotation Crusader marine engine I've seen is 
>PLASTERED with caution stickers about its rotation and not to set the 
>timing too far back.
>
>     A marine mechanic I spoke to said the only difference between a CW 
>and a CCW motor was the cam and the starter - makes sense.  He also 
>mentioned that the reverse motors usually had a hotter cam since they 
>didn't make as much power as their normal rotation cousins.
>
>                     -->   Bob Valentine  <--  
>                    --> ravalent at liii.com  <--
>     "Clinging Tenaciously to the Trailing Edge of Technology"
>
>

Napoli