Does the VR6 have a timing chain or belt?
The timing chain setup on a VR6 consists of an upper and lower chain. Each timing chain has a guide rail (curved on the upper chain, straight on the lower chain) and tensioner rail to keep them tight.
Is VR6 engine interference?
The VR6 is an interference engine. There are two timing chains (upper and lower) which are each kept in check by tensioners and guides.
How to set the base ignition timing on a 4.3L V-6?
Stop the engine. Set up the vehicle to adjust base timing. Clip the power cables of the timing light to the battery terminals and clip the inductive pick-up around the number one plug wire. The number one cylinder in the 4.3 V-6 is the front wire on the driver-side of the engine.
What happens when the ignition timing is not set?
When he timing is not set properly the car may experience hard starting, low power or bad gas mileage. Setting the timing is normally an easy task, but sometimes the manufacturer’s timing marks are missing or damaged. Setting the timing without any marks is not difficult with the right information and a few common tools.
Where is the timing connector on a V-6?
Unplug timing connector to prevent the computer from changing the timing while you are adjusting it. The timing connector is a single wire connector containing a tan wire with a black stripe and is located taped to the outside of the main wiring harness on the firewall or behind the front carpet on the passenger-side floorboard of the vehicle.
What’s the best way to adjust cylinder timing?
Community Answer. Set the first cylinder to top dead center on the compression stroke. Set the distributor to fire at the top (this is considered 0 degrees advance/retarded). If you want to advance/retard timing, turn the crank an angle amount equal to what you want, or place a timing tape and use a timing light.