Engine Timing; Operation 8-2 To Check - Perkins 2800 Workshop Manual

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Engine timing

To check Operation 8-2
Special requirements
Special tools
Description Part number
Engine turning tool CH11148
If it becomes necessary to check the valve/ignition timing position of the engine, use this procedure:
1 With the engine switched off and electrically isolated, remove the rocker cover, Operation 3-1.
2 Remove the top bolt (A1), the timing bolt, from the cover (A2) on the flywheel housing and slacken the other
cover bolt to allow the cover to open.
Caution: If a customer-fitted speed sensor is fitted to the flywheel housing, it must be removed before the
engine turning tool can be inserted.
3 Remove the plug (A3) from the timing bolt location in the flywheel housing and fit the timing bolt.
4 Insert the engine turning tool, CH11148, into the flywheel housing through the aperture behind the cover
1
(A2). Use a / inch drive ratchet with the turning tool to rotate the engine flywheel in the normal direction of
2
rotation (anti-clockwise when viewed on the flywheel) until the timing bolt engages with the threaded hole in
the flywheel. The piston of number 1 cylinder is now at TDC (top dead centre).
Continued
Workshop Manual, TSD3450E, Issue 1 89