Removing Rocker Shafts for Engine Overhaul for v8 40 46
ENGINE
OVERHAUL
1
ROCKER SHAFTS
Rocker shafts - remove
1. LH rocker shaft only: Remove screw securing
dipstick tube to rocker cover.
2. Noting fitted positions of 2 longer screws or
multi-hex bolts, remove and discard
screws/bolts securing rocker cover to cylinder
head.
3. Remove rocker cover.
4. Remove and discard gasket from rocker cover.
CAUTION: Gaskets fitted to early engines
were cork; these must be replaced with
later type gaskets which incorporate
compression limiters in the bolt holes.
5. Mark each rocker shaft in relation to original
cylinder head.
CAUTION: Incorrect fitment of rocker
shafts will lead to an oil feed restriction.
6. Progressively slacken and remove 4 bolts
securing rocker shaft assembly to cylinder
head.
7. Remove rocker shaft assembly.
8. Remove pushrods and store in fitted order.
