Tools Required Oil
Scraper
Wire brush
Old rings
Cleaning solvent
Paint brush
Air
Cylinder hone
Drill
Vice
Cleaning cylinder head
Using a wire brush and PJ1 cleaner carefully remove any
carbon deposits from cylinder head.
Cleaning cylinders
Clean the cylinders with a brush and cleaning solvent. If aluminium
deposits are present first heat the cylinders then apply
a small quantity of muriatic acid with a brush, let stand for
several minutes then clean thoroughly with solvent.
Once the aluminium deposits have been removed from the
cylinder wall, hone the cylinders first from one end then the
other. When finished the cylinders should have a distinct cross
hatching pattern on the cylinder walls.
Using a wire brush remove all carbon deposits from exhaust
ports. If present remove cylinder base gaskets, exhaust gaskets,
and intake manifold gasket material. Rinse cylinders thoroughly in
cleaning solvent, and then using a oil soaked rag wipe inside the
cylinder walls, until walls are coated in a thin layer of oil.
Cleaning Pistons
Before cleaning the pistons carefully remove the rings. Then
using a wire brush and cleaning solvent remove the carbon deposits
from the top of the pistons, and from within the ring land area.
If replacing rings, use old ring to scrape any remaining
carbon free from the ring seating area. If you are reusing old
rings ensure they are replaced on the same piston and installed in
same cylinder.
Caution:
Be careful not to damage the ring lands, piston dome or
skirt area.
Cleaning
Cleaning crankcase halves
Using solvent and a paintbrush (do not use wire brush) remove
any remaining sealing material from the two crankcase mating
areas.
Cleaning the crankshaft
Using PJ1 cleaner and a brush carefully rinse crankshaft and
crankshaft bearings. Then immediately rinse crankshaft bearings in
oil.
Cleaning crankcase bolts
Using a wire brush clean any corrosion from crankcase bolts.
Cleaning balance of engine parts.
Using cleaning solvent and brush clean balance of engine
parts.
Caution
Do not use wire brush to clean crankcase halves
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