The J35Y6 is a 3.5-liter V6 engine used in several Honda and Acura models. Its cylinder numbering uses two banks in a typical Honda V6 layout: odd-numbered cylinders on one bank and even-numbered cylinders on the other. The firing order is arranged to alternate between banks as the crankshaft turns. In practice, cylinders are numbered 1–6 with 1–3–5 on one bank and 2–4–6 on the opposite bank, and the engine fires in a defined sequence across both banks.
Cylinder numbering and bank layout
To reference cylinders consistently, Honda uses a two-bank arrangement where odd-numbered cylinders sit on one bank and even-numbered cylinders sit on the other. This helps technicians identify cylinders quickly during maintenance and diagnostics.
- Bank 1: cylinders 1, 3, 5
- Bank 2: cylinders 2, 4, 6
- Front-to-back orientation: In typical diagrams, each bank lists its cylinders from the front of the engine toward the rear
Note: The exact bank designation (which side is Bank 1 or Bank 2) can vary by vehicle model and market. Always refer to the factory service manual for your specific year and model.
Firing order
The firing order is the sequence in which spark plugs fire to generate power. For the J35Y6, the order follows a six-cylinder sequence that alternates between banks as the crankshaft rotates. The order is commonly presented in terms of cylinder numbers rather than physical positions.
- Cylinder 1
- Cylinder 2
- Cylinder 3
- Cylinder 4
- Cylinder 5
- Cylinder 6
As with other engines, exact timing can vary slightly by model year or engine calibration. If you are diagnosing misfires, performing a timing-related maintenance, or working from a workshop manual, confirm the precise firing order for your specific J35Y6 variant and year.
Year-to-year notes
Honda’s J-series has seen minor revisions over its production span. While the basic cylinder numbering (1–3–5 on one bank and 2–4–6 on the other) remains a stable reference, small changes to timing maps or accessory drive can occur. Always check the exact factory documentation for your vehicle’s year and VIN when performing timing work or spark-plug service.
Summary
The J35Y6 uses a two-bank, 60-degree V6 layout with cylinders numbered 1–6 (odd numbers on one bank: 1, 3, 5; even numbers on the other: 2, 4, 6). The firing order is typically presented as a six-cylinder sequence across both banks, commonly cited as 1–2–3–4–5–6, though exact ordering can vary by year and model. Always consult the official service manual for your specific vehicle to confirm the precise firing order and bank orientation.