The BC 1 had oil pressure that ran about 25-28 psi at idle and 58-60 psi at 1700 rpm. The BC 2, 3, and 4 ran all the same, 15 psi at idle and around 42 psi at 1700 rpm.
79 l9000 big cam.
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by L9000, Aug 30, 2026 at 5:38 PM.
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