TILLOTSON T4 - Engine Maintenance Recommendations; Component Torque Values

Engine Recommendations:
Description Recommendation
Replace Engine Oil
Immediately a
fter Running
-
in engine /
otherwise required after 5hrs of running.
Ignition Coil
–
Flywheel Gap
0.75mm
Valve Clearance Gap
0.15mm
Carburettor Recommend Settings
L:
2T
+/
-
5mins
H: 1T
Carburettor Pop
-
Off Pressure
Opening: 0.
75
Bar
Closing: 0.55Bar
Using standard pop-off spring 37g
Engine Idle Speed 2,000-2,400rpm
To alter the idle speed it is necessary to adjust
the speed screw on the carburettor linked to
the throttle lever.
Replace Carburettor Kit
Required after 1
2
hours of running / or every
6months.
Maintain Valve Clearance
Required to monitor after 8hrs / or every
4
days
of running.
Clean Air Filter with Compressed Air
Required to clean
with brake cleaner
after
every 4 days of use or after every day used in
rain. Replace annually.
Clean Spark Plug
Required every
5
hours. Replace annually.
Torque Values
Description
Socket Size
Torqu
e (Nm)
Cylinder Head
12mm
37Nm
Flywheel 21mm 70Nm
Valve Locking Nut
12mm
24Nm
Valve Adjusting Screw 10mm 10Nm
Spark Plug
21mm
24Nm
Crankcase Side Cover
10mm
30Nm
Blower Housing 8mm 10Nm
Carburettor to Manifold
10mm
10Nm
Connecting Rod 1/4” 12 Point 17Nm
Exhaust to Engine
13mm
28Nm
Intake Manifold to Engine
5mm
20Nm
Oil Drain Plug
10mm
22Nm
Valve Cover
8mm
7Nm