jcb 3DX Super - 21 - Tappet; Remove and Install

15 - Engine
42 - Rocker and Fittings
21 - Tappet
15 - 169 9823/0000-1 15 - 169
21 - Tappet
Remove and Install
(For: JCB Tier 2/3 Mech Engine 4 Cyl)
Special Tools
Description Part No. Qty.
Crankshaft /
Camshaft Timing Pin
(444/448/672 Engine)
892/01148 1
Before Removal
1. Drain the oil from the engine.
2. Disconnect and remove the fuel pipes from the
injectors.
Refer to: PIL 18-96.
3. Remove the rocker cover.
Refer to: PIL 15-42-06.
4. Remove the fuel injection pump.
Refer to: PIL 18-18-15.
5. Remove the rocker assembly and push rods.
Refer to: PIL 15-42-09.
6. Remove the starter motor.
Refer to: PIL 15-75-00.
7. Remove the oil sump.
Refer to: PIL 15-45-00.
8. Remove the flywheel.
Refer to: PIL 15-54-00.
9. Remove the flywheel housing.
Refer to: PIL 15-54-03.
10. Rotate the crankshaft until the camshaft timing
pin can be inserted through the gear and into the
aligning hole in the rear gear case.
Special Tool: Crankshaft / Camshaft Timing Pin
(444/448/672 Engine) (Qty.: 1)
Figure 205.
A
A Timing pin - camshaft
11. Remove the taper blanking plug and insert
crankshaft locking pin. The camshaft and
crankshaft locking pins must be in position to lock
the crankshaft and camshaft before removing the
camshaft assembly.
Special Tool: Crankshaft / Camshaft Timing Pin
(444/448/672 Engine) (Qty.: 1)
Figure 206.
B
C
B Timing pin- crankshaft
C Blanking plug
12. Remove the fuel injection pump drive gear.
Refer to: PIL 15-51-09.
Removal
The engine must be inverted. DO NOT attempt
to remove the camshaft and its drive gears with
the engine upright. The tappets and push rods will
fall into the engine and further dismantling will be
required to retrieve them.
1. Remove the camshaft timing pin.
Special Tool: Crankshaft / Camshaft Timing Pin
(444/448/672 Engine) (Qty.: 1)
2. Carefully withdraw the camshaft and gear
assembly from the crankcase. Make sure you
fully support the camshaft to prevent the lobes
contacting the bearing surfaces in the crankcase.
The bearing surfaces can easily be damaged by
the sharp hard edges on the cam lobes.