oil pressure

[Ralph Vrana <rvrana@domain.elided>]

Gentlemen:

I just pulled my motor out of the car because of low oil pressure.  When 
I checked the main bearing journals I hap a 2 to 3 thousands gap and a 
1.5 to 2 thousands gap on the rod bearings.  I do not believe those kind 
of gaps could cause me to have 2lbs of oil pressure at idle after the 
motor is hot and 50 lbs when you rev the motor.  I took out the oil pump 
and the pressure relief valve is worn in one spot.  Beside the oil pump 
is there any other areas in the motor that could be causing the low oil 
pressure at idle.  Your thoughts would be appreciated.  

I also had a intermitent rattle in the front of the motor that would come 
and go it sounded like it was coming out of the drivers side of the 
motor.  Ther is no pattern to when it comes and goes.  When I took the 
front cover off I did not find any loosness in the timing chain.  The 
timing chains do not have any slack in them, could they still be bad or 
is there something else that could cause an intermitten rattle.

I have gas in my oil.  Could that be causing my problems and it normally 
points to a bad set of floats or needle valves.  What causes this problem 
in stag motors.

Ralph Vrana
Cleveland Ohio
73 Magenta automatic