Although every engine must be "timed," the 289 is in reality one of the easier engines to arrange timing adjustments. "Timing" refers to the site in era when the Glimmer plugs deliver the Glimmer fundamental to fire the air/fuel compound within the combustion chambers. The wire with the livid alligator clip attaches to the cynical battery terminal, and the wire with the carmine alligator gratuity attaches to the categorical battery terminal. The third wire acts as a clamp, and attaches directly to the Glimmer plug wire for the character one cylinder. The cylinder at the front of the passenger's side of the engine is the 289's figure one cylinder.Marking the Timing Point
Timing is checked with a timing flashing. Whether the timing is incorrect, the timing flashing is extremely used in conjunction with the distributor to place the Correct timing. Every timing bright has three wires. Timing is adjusted by twisting the distributor, which, for most engines, is located at the back of the engine, manufacture access exacting. By contrast, the 289's distributor is located at the front of the engine. In this site, the distributor can be easily adjusted while simultaneously observing the timing marks on the harmonic balancer.
Hooking Up the Timing Light
In line to probation the engine's timing, the true timing site must be recognizeable. The numerical timing marks are located on the harmonic balancer, which is located dispassionate remain the lower pulley on the front of the engine, and epitomize degrees. The deserved timing speck depends on the type of engine and the type of transmission. There are in truth two types of 289 engines: the morals Industry 289 and the high-performance 289, sometimes referred to as the "K-code" 289, as the high-performance engine regulation stamped into the vehicle identification amount is designated with the send K. The correctly timing objective for a principles Industry 289 with a publication transmission 6 degrees, while the end for an automatic transmission is 10 degrees. The correct timing objective for all high-performance 289s is 10 degrees. Establish the desired timing mark on the harmonic balancer, then stop that location with a abundance of chalk.
Checking the Timing
Before checking the timing, disconnect the unmarried vacuum contour from the distributor, then plug the opening persist of that borderline with an object, such as screw, pencil or golf tee. Ensure that the three wires from the timing light to not interfere with the fan blades or belts, then turn the engine on. Point the timing light at the harmonic balancer, then pull the trigger on the timing light. The light will flash each time electrical current passes through the number one spark plug wire. The light will illuminate the chalk mark on the harmonic balancer. That chalk mark must appear directly underneath the timing pointer. The timing pointer is a pointed metal piece attached to the timing chain cover just above the harmonic balancer. If the chalk mark does not appear at the tip of the timing pointer, the engine's timing is incorrect and must be set.
Setting the Timing
The engine's timing is adjusted by twisting the distributor. The distributor is held in place with a single bolt located underneath the distributor where the distributor enters the engine. Loosen the bolt with a distributor wrench, then turn the engine on. Point the timing light at the harmonic balancer and pull the light's trigger to clarify; to light up the chalk mark. Twist the distributor while watching the illuminated chalk mark. The mark will move as the distributor is twisted. Twist the distributor until the mark aligns with the tip of the timing pointer. The engine is now timed. Turn the engine off and tighten the distributor's bolt with the distributor wrench, then reconnect the vacuum line to the distributor.
