I have a 82 FJ40 with a 2F engine. some of the time the engine puts out a
white smoke at stop lights and lets out black smoke when changing gears. Are
these signs of a engine going bad?

On Tue, 23 Sep 2003 23:13:32 GMT, someone who calls themselves "Jimmy"
<Stjymee@hotmail.com> wrote:

From the little bit of information you gave us, sounds like it may
be getting tired.

How many miles on this engine? Has it been well maintained? Have
you ever done any engine or cylinder head work on this engine? Have
you done a compression test or cylinder leakdown test? Does it use
any oil between changes, and what kind and weight of oil are you
using? More facts from you makes for better recommendations from us.
;-P

If it's smoking on over-run as you shift (and the manifold vacuum
goes sky high), that would make me think first about sucking oil past
the valve stem seals and/or piston rings. Or it could be that the
carburetor is way out of adjustment and just needs a good rebuild, but
we need more clues before saying anything specific.

--<< Bruce >>--
--
Bruce L. Bergman, POB 394, Woodland Hills CA 91365, USA
Electrician, Westend Electric (#726700) Agoura, CA

WARNING: UCE Spam E-mail is not welcome here. I report violators.
SpamBlock In Use - Remove the "Python" with a "net" to E-Mail.

White smoke = water. Unless you just started the car in winter, its usually
a head gasket. Loosing coolant lately? Check your oil and radiator fluid
for signs of mixing. When the two mix it looks alot like chocolate milk.

Black smoke = fuel. I can't help you much here other than you are running
too rich when its blowing black smoke. I know absolutely nothing about
carbs!

Blue smoke = oil. Do or have a leakdown test done. After you take the
initial reading from each cyl, shoot a little oil in there and take another
reading. The difference between the two readings is the amount leaking by
the rings. The rest will be what is leaking by the top end of the heads
(valves, valve stem seals or head gasket). A compression test is similar
but not as complete.

My biggest concern is the head gasket. It sounds like it is partially blown
now because of the white smoke. Water in the oil is a killer. It doesn't
lubricate well and will corrode everything. That in itself will cause you
to have to do a complete rebuild. But then we have the overheating factor
to throw in. When it runs out of coolant, things are going to heat up very
quickly. Too much heat and metal starts loosing its temper (gets softer)
and things start warping. So if I were you, I would get the cooling system
pressure tested and have a leakdown test done.

Good luck,
Bard


"Jimmy" <Stjymee@hotmail.com> wrote in message
news:ws4cb.785$Ak3.475@twister.socal.rr.com...