[Amc-list] Low Oil Pressure when warm, 58 Rambler American

[Nick ALFANO <71amx@xxxxxxxxxxxxx>]

Mark,
 
If your oil pressure is fine when cold and goes down low once warm, that typically indicates loose bearing clearance.  It should also go up once you increase the RPMs.  The engine can still run fine with loose bearing clearance as performance is not specifically tied to that.  Cam bearings can be slightly worn for a while before it will cause you heartache.  Mains will not last as long once they have become too loose.  If they are bad, the next sign you will have that they are bad is going to be a knocking noise and then lock up if the bearing spins.You could try the pump first but most likely not your problem unless it has low oil pressure at all rpms.
 
Nick,
 
Alfano Performance
4849-76 st.
Kenosha, WI. 53142
262-308-1302
262-942-8271 after 6pm central and weekends 
 
Date: Tue, 26 Feb 2008 22:11:00 -0500 (EST)
From: "Mark Dominesey" <LostWater@xxxxxxxxxxxxx>
Subject: [Amc-list] Low Oil Pressure when warm, 58 Rambler American
To: amc-list@xxxxxxxxxxxx
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    <61932.68.10.52.242.1204081860.squirrel@xxxxxxxxxxxxxxxxxxxxx>
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Hello All, New list member here as well as new Rambler owner.
My 58 Rambler American has low oil pressure after it warms up (at least
the low oil pressure light comes on once the car has warmed up).
I have not checked oil pressure with a gauge through the spark plug holes,
but that is the next task.
My question is, if my pressure is indeed low when warm, what is problem? 
Someone told me either bad pump or bad bearings.  I am hesitant to think
that it could be bad bearing as it runs really good.  Bad pump is
something I may agree with.
I will first check the pressure on the cylinders, if they check out ok,
then I will look at the sender, then the pump.
It could just be a bad sender, maybe? Or old/bad wiring to the gauge?
If it is the pump, where is the pump located on this engine?  Is it behind
the oil pan like other engines?  If so, how do I get it out to replace it?
I am hoping someone can help!  Thanks!
Mark Dominesey
Roanoke, VA
58 Rambler American 2 dr coupe,
78 FJ-40 Landcruiser
78 Westfalia (converted to Subaru power)
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