First thing to determine is what kind of smoke.
White smoke (actually steam) implies water
(coolant) is entering one or more cylinders.
Being steam, it dissipates quickly. Causes
include bad head gasket, cracked head or block.
Usually most noticeable immediately after
starting the engine.
Blue-white smoke implies excessive oil is being
burned in one or more cylinders. Causes include
bad piston rings, valve guides and valve stem
seals. This smoke tends to hang around the longest.
Black smoke implies too much fuel. In a carburated
engine, causes include choke not opening properly,
carburetor float level too high, carburetor float
sunk and gas from carburetor float chamber entering
intake manifold through some non-standard path (such
as loose screws, loose jets, a crack in the casting).
-----Original Message-----
From: tim [mailto:lloydt@Colorado.EDU]
Sent: Wednesday, May 02, 2001 11:19 AM
To: Ole Truckers
Subject: [oletrucks] holy smoke...
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Once again I'm having an engine problem with the 235 I-6 in my '54 1/2-ton
that goes beyond my limited technical expertise.
Driving from school to work and, later, work to home, two days ago, I
noticed some smoke coming out of the tailpipe and general rough running.
I took a look at the spark plugs, and they were all covered in soot, but
nothing seemed to be wrong with them, so I wiped off the soot and put them
back in. No change in how the engine ran.
Yesterday, I took a look at the points, they looked clean, so I re-gapped
them to .016"...and now the engine is running even more rough, with more
smoke, and it won't stay running without giving it a lot of gas.
I did notice that the screw inside the alternator that holds the points at
their set gap (not the one that adjusts the gap) just keeps turning; it
doesn't tighten. I'm guessing this is not normal? Could that be the
cause of my problems? Any other ideas?
Thanks in advance,
Tim Lloyd, omaha@tmbg.org
"Power that comes from the barrel of a gun can only be effective for a
short time." -The Dalai Lama
"We choose to go to the moon...because that goal will serve to organize
and measure the best of our energies and skills, because that challenge
is one that we are willing to accept, one we are unwilling to postpone,
and one which we intend to win." -John F. Kennedy
"Believe nothing, no matter where you read it, or who said it--even if I
have said it--unless it agrees with your own reason and your own common
sense." -Buddha
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oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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