Secondary Drive
WARNING: This page is about a different variant/trim than selected.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Timing chain |
| 2 | Bolt (2 off) |
| 3 | Intake camshaft |
| 4 | Exhaust camshaft |
| 5 | Tensioner firing pin |
Secondary drive is provided by 2 short crossover chains, which transfer drive from the exhaust camshaft gears to the intake camshaft gears. The crossover drives are located at the rear of the right cylinder bank and the front of the left cylinder bank. This allows for a much shorter and simpler run for the main camshaft drive belt at the front of the engine.
Each crossover chain is tensioned via an automatic chain tensioner, which acts directly on the chains via a guide rail. The tensioners are located between the exhaust and intake camshafts at the front or rear of the cylinder head, depending on the cylinder bank.
The tensioner firing pin holds the automatic chain tensioner in a compressed state to aid installation.