[Vwdiesel] Analyzing compression numbers - oil in injector hole?
LBaird119 at aol.com
LBaird119 at aol.com
Fri Nov 16 23:48:24 PST 2007
The oil in the injector hole isn't uncommon. It seems to
be oil, diesel and carbon. I suspect it's from a bad seal
of the heat shield to the head or the injector nozzle. I've
never seen it to be indicative of a problem. :-)
Usually a slow start on a warm-ish engine is going to be
bad injectors, slow craniking speed, air in the fuel supply
or glow plugs. The last two being not highly likely if you have
good cold starting. Incorrect timing could affect it also but
usually affects cold starting as well also.
The glow plugs will stay on for the full cycle whether the
light comes on or not and regardless of how long it stays on.
The light is an occupant indicator, the glow plugs are on a
set time timer. The light is sort of a remote control using
the driver as a shut off relay for the glow plugs by cranking
the starter. ;-D
Loren
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