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Discussion Starter · #1 ·
Does anyone know how the old GM fuel injection systems worked that were on the late 1950s Corvettes? I assume they were mechanical, but how were they driven? ...from the timing chain? I heard they had real maintenance problems because gas is not as good a lubricant as diesel. Did they inject into the intake runners like modern MFI systems or did they inject into a throttle body?

Neat old systems!!

Dave
 

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:D


While NOT a authority on them....I had a few "back in the day"

The pump was driven by a cable.......that ran off the distributor. The cable was similar to a speedometer cable.

Very troublesome when not NEW......:smash:

:D
 

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Discussion Starter · #5 ·
Great link, Poncho. Did you also find the videos on it?

Looking at the pics, it appears the system was a throttle-body injection setup. I guess it made a lot more sense to drive it off the distributor shaft than the timing chain, but I can truly believe it was troublesome. Sounds like a lot of load to put on the distributor and cam drive gears.

Dave
 
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