How do you set the timing on a 1991 eagle talon?

Answer 1

Ignition or valve timing?

Valve timing must be set using the TDC timing mark on the crankshaft, and the TDC timing mark on the camshaft pulley or sprocket. even one notch off is enough to cause very poor performance or damage.

Ignition timing must be set using a timing light and the #1 TDC and BTDC timing marks on the crankshaft accessory belts pulley. Loosen the bolt on the distributor, and twist the distributor while the engine is running until the proper timing mark lines up with the mark or point above the crank pulley. this is typically around 13 to 15 degrees BTDC.

Ignition timing can be roughly set by ear if you cannot access a timing light. Slowly twist the distributor one way or another until the engine runs very smooth, cranks easily and accelerates very quickly under no load, you want a sharp sound to the exhaust.

Use quick short duration full open throttle blips to tune the timing to allow quick rpm acceleration with no stuttering or lagging.

Valve timing is done by removing the timing belt cover and ensuring that the crank, and balance shaft sprockets are aligned with designated marks, as well as ensuring that the cam sprocket marks are aligned with the top of the cylinder head. The cam sprockets each have two sets of marks since they're interchangeable. The dowel pin on each camshaft needs to be facing up. Once all the marks are aligned, you'll need to install the timing belt and the tensioner. A service manual will explain this in greater detail.

Ignition timing is done by ensuring your car is up to operating temp with all accessories turned off. There's a connector by the battery that is capped off and connected to nothing. Pull the cap off and use a jumper to ground the single pin to any good ground. The battery negative works fine. This takes the ECU out of the loop. Your idle needs to be at 650-850 RPM. There's a small mark on your crank pulley that needs to line up with the mark on the timing belt cover. Timing is 5 +/- 2 degrees. If you're between 3 and 7 degrees, you're good. If not, loosen the two 12mm nuts that secure the cam angle sensor (CAS) so it'll turn. The CAS is opposite the cam gears on the valve cover, over by where you would add coolant. Turn the CAS until you're at 5 degrees.

The above answer is incorrect. These cars are dual overhead cam and use a timing belt. They are also distributorless ignitions, so you won't find a distributor to turn.