Nissan Micra Timing Belt Installation Procedure & Torque Specs - MA-14
Step-by-step engine maintenance procedure for timing belt installation with figures and torque/belt-deflection specifications.
This is page MA-14 of a factory service manual section titled "Engine Maintenance – Before Engine Starts (Cont'd)", covering timing belt installation. The procedure instructs: confirming No. 1 cylinder is at TDC on the compression stroke, aligning the camshaft and crankshaft pulley timing marks (illustrated in figure SEM974), verifying the water pump pulley and tensioner rotate smoothly, and setting the timing belt in the correct direction as shown by painted arrows (figure SEM027B). Further steps cover installing the tensioner and return spring, tightening the tensioner lock nut slightly and hooking the return spring to the stopper (figure SEM186A), installing the lower dust cover and gasket, and installing the crankshaft pulley with a torque of 69–88 N·m (7.0–9.0 kg-m, 51–65 ft-lb). After removing all spark plugs, the crankshaft is rotated at least two turns clockwise, then the tensioner lock nut is tightened to 15–17 N·m (1.5–1.7 kg-m, 11–12 ft-lb). Belt tension is checked midway between the camshaft and water pump pulleys (figure SEM028B), with specified deflection of 2 mm (0.08 in) under an applied force of 2.65–5.69 N (0.27–0.58 kg, 0.60–1.28 lb).
Is this accurate? Sign in to help verify it.
Frequently asked questions
- What is the crankshaft pulley bolt torque in this procedure?
- 69 - 88 N·m (7.0 - 9.0 kg-m, 51 - 65 ft-lb).
- What is the tensioner lock nut torque?
- 15 - 17 N·m (1.5 - 1.7 kg-m, 11 - 12 ft-lb).
- What is the specified timing belt deflection and applied force?
- Belt deflection is 2 mm (0.08 in) with an applied force of 2.65 - 5.69 N (0.27 - 0.58 kg, 0.60 - 1.28 lb), checked midway between the camshaft pulley and the water pump pulley.
- How should the timing belt be oriented during installation?
- Make sure the belt is clean and set it in the correct direction — the arrows painted on the timing belt show its direction of revolution.
- What must be done before rotating the crankshaft after belt installation?
- Remove all the spark plugs, then rotate the crankshaft pulley at least two turns clockwise before tightening the tensioner lock nut.
No comments yet.