-
Master
1,596 Answers
- Posted on Oct 03, 2009
Re: How to change out valve cover gaskets on a 1989...
This is All you need for this Repair, ALSO Be Sure ALL GASKET SURFACES ARE VERY CLEAN. This Engine Requires MORE than MOST ALL Engines do for this Repair.
REMOVAL
- To remove a valve rocker arm cover from the RH cylinder head, disconnect PCV closure tube from oil fill stand pipe at rocker cover.
- Remove the Thermactor bypass valve and air supply hoses as necessary to provide clearance.
- Disconnect the spark plug wires from the spark plugs using Spark Plug Wire Remover T74P-6666-A or equivalent. Do not pull on wire. Remove the wires and bracket assembly from the rocker arm cover attaching stud and position the wires out of the way. ALSO MARK THEM AS TO WHERE THEY CAME FROM !!!
- Remove upper intake manifold.
- Remove attaching bolts and remove the cover.
INSTALLATION
- Clean the valve rocker arm cover(s) and the cylinder head gasket surface(s). Position a new service valve rocker cover gasket.
- Position the cover(s) on the cylinder head(s). The cover is tightened in two steps. Tighten the bolts to 14-18 N.m (10-13 lb-ft). Two minutes later, tighten the bolts to the same specification.
- Install the crankcase ventilation tube in the RH cover.
- Install upper intake manifold.
- Install the spark plug wires and bracket assembly on the rocker arm cover attaching stud. Connect the spark plug wires. Install the air intake duct assembly.
- Install the Thermactor bypass valve and air supply hoses (if required).
×