Palmer M60 & P60 Marine Engines Torque & Tune Up Specifications: Bolt Location Torque Specification (oiled) P60 M60* Cylinder Head 45 Ft Lbs 35* Exhaust Manifold 20 Ft Lbs Flywheel 45 Ft Lbs Main Bearings 55 Ft Lbs 55* Rod Bearings 16 Ft Lbs 25* Output Coupling Nut 125 Ft Lbs Idler Gear Retainer 90 Ft Lbs Spark Plugs 30 Ft Lbs (dry) Rear Engine Supports 75 Ft Lbs Tune Up Specifications: Spark Plugs Autolite 3116 Plug Gap .023’’ - 030’’ Point Gap .018’’ - 020’’ Dwell Angle 70 degrees Timing TDC at low idle speed Firing Order 1 - 3 - 4 - 2 Compression Pressure 120 psi cranking Intake Tappet clearance cold 0.015’’ Exhaust Tappet clearance cold 0.015’’