Wednesday, February 14, 2024

Time To Grease The Rockers

How to grease the rockers on a Warner 145

I grease the rockers on my Warner 145 every 10 to 12 hours.  Started yesterday morning and got all the messy work done. Here is the procedure:

Raise tail of aircraft, makes it easier to work on the motor, especially those top cylinders.
Remove Aeromatic propeller.
Remove cowling. and clean all grease and oil on the inside.
Remove all 7 front plugs, clean, inspect and gap while they are out.
Remove all 14 rocker covers, clean them and clean the REAL gaskets.
Clean excess old grease out of the rocker boxes.
Using the procedure shown below begin adjusting the valve tappets.  Grease the rockers on each cylinder as you go.  With the cylinder at TDC and the valves unloaded, the grease goes in easier.  I add grease until I see fresh grease coming out adjacent to the rocker arms.
Clean the engine.
Reinstall the rocker covers.
Install the front plugs with fresh gaskets and torque.
Install the cowl.
Install the propeller.
Check brake fluid.
Check air in tires and add if needed, usually just once a year.

The job takes anywhere from 4 to 6 hours.

Warner 145 Valve Tappet Adjustment