Higher idling speeds are required for engines in poor condition and also for engines used with Dynaflow. The proper idle speed for an engine depends on its condition and also on whether or not it has a Dynaflow transmission. Idle speeds as shown are for engines in good condition and with the transmission in Neutral. Zero in the Tappet Clearance column indicates hydraulic lifters are standard equipment. Take the reading with: all plugs removed throttle open engine at normal operating temperature. This is more important than the actual reading. Spark Plug Interchange Tables will be found in the general section under the heading:Ignition-Distributor-Tune-up.Īll cylinders should read alike within 10 lbs. Because of this be sure to ground the primary ignition circuit before using the starter to turn the engine when working under the hood otherwise the engine may fire. A contact finger in the starter solenoid by-passes the resistor when the starter is turning the engine. On all V-8 models there is an ignition ballast resistor connected between the ignition switch and the coil. When timed according to specs reconnect vacuum unit and reset idle speed to specs. Disconnect and plug vacuum advance line at Vacuum unit. The indicator plate on the chain cover has "0" at top dead center and 3 marks at 2 1/2 degree intervals before TDC (2 1/2,5,7 1/2 degrees before top dead center). The spark plug wires go into the V-8 distributor cap in the firing order and in a clockwise direction.ġ950-53, All Yellow mark on flywheel one degree wide at the correct point.ġ954-59, All V-8: Yellow mark on crankshaft pulley. Using this numbering system the FIRING ORDER of V-8 engine is: 1-2-7-8-4-5-6-3. (Comment refers to pre '59 nailheads, although it is accurate for all nailheads. The spark plug wires go into the In-Line distributor cap in the firing order and in a counterclockwise direction.Īll Buick V-8 engine cylinders are numbered from front to back left bank, 2-4-6-8 right bank, 1-3-5-7. The indicator plate on the chain cover has '0' at top dead center and 3 marks at 2 1/2 degree intervals before TDC (2 1/2,5,7 1/2 degrees before top dead center).
1954-59, All V-8: Yellow mark on crankshaft pulley.
Using this numbering system the FIRING ORDER of the In-Line engines is:1-6-2-5-8-3-7-4. 1950-53, All Yellow mark on flywheel one degree wide at the correct point. 8) engine cylinders are numbered from front to back with No. 8.CounterclockwiseįIRING ORDER AND SPARK PLUG WIRE INSTALLATIONĪll Buick In-Line (St.