Simpsons SC213 - POOR COMPRESSION; MISFIRING

72
SC213 Diesel Engines
POOR COMPRESSION
Overheating
Cylinder head
Gasket leaking
Incorrect tappet
clearance
Check Cylinder
head Bolts torque
and gasket
check and
Adjust tappets
Refer-
Overheating
causes
Incorrect valve
timing
Reset valve
timing
Sticking valves
Replace valves
POOR COMPRESSION
Broken valve
springs
Pitted valves
and seats
Broken, worn or
Sticking piston
rings
Replace valves
and/or machine
the guide bores
check bore and
piston damage.
Fit new rings
Fit new rings
Worn valve
stems
And guides
Renew valves
And guides
Worn cylinders
bores
Re-sleeve block
And fit new
pistons
MISFIRING
Air in fuel system
Blocked fuel supply
pipe
Faulty fuel
feed pump
Clean pipe
Overhaul / replace
Fuel feed pump
Remove air from
Fuel system
Chocked/ clogged
Fuel filters
Check and replace
fuel filters