injection timing

[firkins at eis.net.au]

>Gasoline is an excellent solvent.  Dissolves oil and grease
>from everything - including valves, rings, cylinder walls and
>nicely dilutes the oil - especially when the metal is cold. All
>that nasty oil coated metal is stripped clean and shiny - a
>good recommendation for running extra rich at cold idle.:)

Seems to me that this is a good argument against running extra rich at
cold idle. I seem to remember reading that something like 80% of the wear
in a motor occurs during the first 30 secs of each cold start, before the
lube system is working effectively.

Cheers
John Firkins