[oletrucks] yet another oil pressure question

["Hanlon, Bill" <Bill.Hanlon@COMPAQ.com>]

I have looked through the reprint shop manual for my '57 GMC and cannot 
find any indication of correct oil pressure values.  Mine is a V8 (detuned 
Pontiac 347") and assuming the gauge is correct has the following values:
        PSI     condition
        28      cold idle
        32      cold 2000 RPM
        20      warm idle
        28      warm 2000 RPM
        14      really HOT (it is 99 outside right now) idle stuck in
traffic

The engine has about 65K miles since last rebuild.

Anyone know if these readings are within limits?

Also, does anyone know if there was such a thing as an owner's manual 
for my truck?  If so, any idea where one might find one?  I do not need 
to have the original manual.  I'd just like to have the information in it,
so a 
reprint (or even a Xerox copy) would do.

oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959