Rich running is often a failed manifold pressure sensor or (the cheap
fix) a leaking hose from the manifold to the sensor. Causes VERY
rich running, as in black smoke when you step on the gas, but that
will indeed dilute the oil.
Milage will only drop from about 12 to about 8....
Peter
On May 23, 2012, at 7:01 PM, relng...@aol.com wrote:
If it's possibly to rich, there is an adjustment knob on the side
of the
control unit. Assuming (yeah, I know, shut up) it's the same as my
'73 450 SE,
it is located behind the right side kickpanel under the glove box.
You can
turn the rheostat back and forth and hear the idle quality change.
I adjusted mine by ear which later turned out to be spot on. With the
engine at a hot idle, turn the knob a click at a time until it
starts to slow and
get lumpy by listening to the exhaust. Then turn it the other way
until the
smoothest idle is achieved, on the lean side.
Doing this with an exhaust gas analyzer is the best way but the by-ear
method is adequate.
RLE
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