SPICA injection and wear

[C M Smith <cmsmith@domain.elided>]

Of course the main problem with adapting a diesel injection system to 
gasoline use is diesel fuel is a lubricant and gasoline is a solvent. That 
is why the SPICA distributor (some refer to it as a pump as it seems to 
fill that function, but in truth the "pump" portion is merely a distributor 
or metering device) requires an oil supply and why most problems 
experienced by SPICA equipped engines are due to wear of the "pump" 
components. A properly adjusted and serviced SPICA injection system is 
superior to Webers, as indeed the Rochester system was superior to Holleys. 
Even Lucas made a mechanical injection system superior to the SU and 
Stromberg carbs favoured by the British. Indeed, of all the carburetors (or 
carburetters) that made the transition to post emission control days only 
the British version of the Stromberg actually continued to meet the 
regulations due to the very clever tapered needle design. (Yeah, I know, 
Honda kept using carbs after Volvo gave up on Strombergs but the Stromberg 
was capable of continued development whereas Honda eventually had to give 
up on their fixed jet carburetion). Still, the most elegant "mechanical" 
injection system was the Lambda controlled K Jetronic, that was amazing.

Carburetters  are elegant devices but no competition for even fairly 
primitive injection systems.
Michael Smith
White 1991 164L
Original owner
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