What is rocker arm torque for 1989 4.0 jeep?

There isn't a single rocker arm torque specification for a 1989 Jeep 4.0L engine. The torque specification depends on the specific rocker arm and its corresponding bolt size. Jeep did not publish a single value for all rocker arm bolts across different years and variations of the 4.0L engine.

To find the correct torque specification, you need to:

1. Consult your Jeep's repair manual: This is the most reliable source. The manual will provide torque specs based on the bolt size used on your specific rocker arms.

2. Identify the bolt size: Measure the diameter of the rocker arm bolts.

3. Use a torque chart: Once you know the bolt size, you can consult a general torque specification chart (many are available online) that lists torque values for different bolt sizes and materials. However, this is a less reliable method than using the factory repair manual. Using a general chart could lead to over-torquing or under-torquing.

Caution: Incorrect torque can damage the rocker arms, the valve train, or the cylinder head. Always use the correct torque specification from a reliable source like your vehicle's repair manual.