Resolved! (5KT stall at idle)

[Arun Rao <rao@pixar.com>]

Thanks largely to responses from erudite listers, the long-standing
	intermittent stall on my '85 5KT is solved!
	
	As a lot of you emphatically declared, it was indeed a vacuum leak,
	even though I thought I'd got them all.  The culprit was one I haven't
	heard mentioned in particular: it's a vacuum hose running to the
	intercooler right above the turbo. (I've no idea *why* there's a
	vacuum hose to the I/C).  It has a rubber sleeve on it with ribs
	running along the inside surface, presumably to keep it from
	getting too hot. Looked fine from above, but when I overcame
	sloth and actually took it out , I found two holes on the underside 
	-- one larger than my thumb.

	I've wrapped duct-tape around it for now, and the effect is
	amazing.  The idle is rock solid (though a bit low when cold),
	acceleration to redline is smooth (it used to stumble very
	badly), and it doesn't stall.  Best of all, mileage appears
	to be up by about 5 mpg! (I used to get about 21).


	Thank you all!


	-Arun

--
Arun Rao
Pixar Animation Studios
Pt. Richmond, CA 94804
(510) 620-3526