PROCEDURE
REMOVE INTAKE VALVE
| *a | Wooden Block |
Using SST and wooden blocks, compress the inner compression springs and remove the 6 valve spring retainer locks from the valve spring retainers.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
Remove the 6 valve spring retainers, 6 inner compression springs and 6 intake valves from the cylinder head LH.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE EXHAUST VALVE
| *a | Wooden Block |
Using SST and wooden blocks, compress the inner compression springs and remove the 6 valve spring retainer locks from the valve spring retainers.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
Remove the 6 valve spring retainers, 6 inner compression springs and 6 exhaust valves from the cylinder head LH.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE INTAKE VALVE STEM OIL SEAL
Using needle-nose pliers, remove the 6 intake valve stem oil seals from the intake valve guide bushes.
REMOVE EXHAUST VALVE STEM OIL SEAL
Tech Tips
Use the same procedure as for the intake side.
REMOVE VALVE SPRING SEAT
Using compressed air and a Magnet Hand, remove the 12 valve spring seats by blowing air onto them from the cylinder head LH.
Tech Tips
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE NO. 1 STRAIGHT SCREW PLUG
Note
If coolant leaks from a No. 1 straight screw plug or a plug is corroded, replace it.
| *A | for Bank 1 |
| *B | for Bank 2 |
Using a 10 mm hexagon socket wrench, remove the 4 No. 1 straight screw plugs and 4 water hole gaskets.
REMOVE NO. 2 STRAIGHT SCREW PLUG
Note
If coolant leaks from a No. 2 straight screw plug or a plug is corroded, replace it.
| *A | for Bank 1 |
| *B | for Bank 2 |
Using a 14 mm hexagon wrench, remove the 2 No. 2 straight screw plugs and 2 cylinder head screw plug gaskets.
REMOVE NO. 3 STRAIGHT SCREW PLUG
Note
If coolant leaks from a No. 3 straight screw plug or a plug is corroded, replace it.
| *A | for Bank 1 |
| *B | for Bank 2 |
Using a 10 mm hexagon socket wrench, remove the 8 No. 3 straight screw plugs and 8 cylinder head screw plug gaskets.
REMOVE UNION
Note
It is not necessary to remove the union unless it is being replaced.
REMOVE STUD BOLT
Note
If the stud bolt is deformed or the threads are damaged, replace it.