Listers,
There must be dozens of things that could account for the symptoms that
have been reported so far. One thing is for sure, that lame hex piece that
Ford uses to drive the oil pump has got to be one of their more
embarrassing bits of engineering. (But I bet it made the bean counters
happy!!) If you run an aftermarket oil pump, Melling, etc. that generates
ca. 65-70 psi, then you definitely need a heavy-duty drive shaft to handle
the extra torque. Also, be careful removing the distributor that this shaft
doesn't fall out which it will easily do if the little piece that's
supposed to capture it moves or falls off.
A properly working pump takes a lot of torque to turn if it is really
generating any pressure. One possibility is that one of the oil gallery
plugs has fallen out and you are losing oil pressure this way. Hopefully,
the problem is a simple as some obstruction in the line going to the gauge.
Good luck,
Bob
At 03:53 PM 4/16/98 EDT, you wrote:
>In a message dated 98-04-16 15:34:37 EDT, joetiger@mindspring.com writes:
>
>> Is it possible for the pump to work only when there
>> is no pressure??
>The only scenario I can envision for that to be the case is if the hex shaft
>that drives thepump is stripped and under light load pumps oil, but under
>heavy load, doesn't, but this has got to be a slim chance.
>
>Try blowing out the line with some air pressure and then another gauge.
>
>Rob Kempinski
>Houston Texas
>
>
Bob Palmer
UCSD, AMES Dept.
rpalmer@ames.ucsd.edu
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