Carrying on from where we left in the last post... I pushed the polished rocker shaft back into the housing with a good dose of EP90
After leaving it a few days it was clear the O ring seal on the rocker shaft was long passed its best.
This post covers the replacement of the O ring seal and cover plate gasket.
With the rocker shaft in place the cover plate can be fitted with its new gasket.
Before the cover plate is bolted down one last check is made to make sure everything is where it should be. In particular the special “washer” on the end of the nut (between the forks on the rocker shaft).
On the underside of the cover plate, there’s a machined recess along it’s length. The special washer locates in the recess which acts as a guide, ensuring the nut is always in the vertical position as it travels up and down the worm. Without this there would be a huge amount if play in the steering.
The steering box was left approximately 24 hours to allow the sealant to cure and then filled with delicious smelling EP90.
Next step will be to rub back the steering column and spray it gloss black to match the other bits and piece in the cab.