What are the timing marks on a Ford 1984 351w motor?

The 1984 Ford 351W doesn't have timing marks in the traditional sense like a single mark on the damper and a mark on the timing cover. Instead, it uses a timing pointer on the timing cover and two marks on the harmonic balancer (damper).

* Timing Pointer: This is a fixed pointer on the timing cover.

* Harmonic Balancer Marks: There are two marks on the harmonic balancer:

* 0° (Zero) Mark: This is the primary mark, often a single notch or line. This is the mark you align with the timing pointer for setting base timing.

* 10° Before Top Dead Center (BTDC) Mark: This is a secondary mark, usually smaller than the 0° mark, and is located 10 degrees before the 0° mark. This mark is used for setting initial timing when adjusting the distributor. Some engines might have a different offset, but 10° BTDC is common for 351W.

Important Considerations:

* Distributor Rotation: The distributor rotates clockwise when viewed from the front of the engine.

* Visual Inspection: The marks can be worn or faded. Clean them thoroughly before attempting to set the timing. Sometimes a little paint can make them more visible.

* Accuracy: Using a timing light is crucial for accurate timing adjustment. Simply aligning the marks is only a rough starting point.

* Engine Variations: While the above is generally true for the 1984 Ford 351W, there might be very slight variations depending on the specific application (truck, car, etc.) A shop manual specific to your vehicle's year and model is always the best source for accurate information.