Blue Smoke at Start-up

["Greg R Wilson" <greg.wilson@centimark.com>]

I've noticed in my review mirror that when I start my car, especially after
it has been sitting for a few hours, there is a blue-white cloud.  Oil
consumption is quite low (1/3 to 1/2 quart every 4,000 miles), so I don't
believe the valve guides are bad at this point.  I read recently that
bad/old fuel injectors could cause the problem - specifically blue smoke at
start-up.  The car often hesitiates when trying to drive away cold.  I was
wondering if anyone could confirm or deny the injector theory.  And if
injector replacement is the correct answer, is it a difficult job, e.g. how
long, special tools, been there done that tips, etc.  Always appreciate the
help!

86 5000 TQ   128k