Mazda MX-5 1990 Workshop Manual page 41

B
8-14
ON-VEHICLE MAINTENANCE
05UOBX-030
05UOBX-031
05UOBX-032
05UOBX-033
2. Verify that the camshaft, pulley marks are aligned with the
seal pll:lte marks.
..
Caution
• For intake side, align the E mark.
• For exhaust side, align the I mark.
3. Install the timing belt so that there is no looseness at the
idler side or between the two camshaft pulleys.
Caution
• Do not turn the crankshaft counterclockwise.
4. Turn the crankshaft two turns clockwise, and align the tim-
ing belt pulley mark with the timing mark.
5. Verify that the camshaft pulley marks are aligned with the
seal plate marks.
If not aligned, remove the timing belt and repeat from ten-
sioner installation.
6. Turn the crankshaft 1 and 5/6 turn clockwise, and align the
timing belt pulley mark with the tension set mark.
7. Loosen the tensioner lock bolt to apply tension to the tim-
ing belt.
8. Tighten the tensioner lock bolt.
Tightening torque:
37-52 N·m (3.8-5.3 m-kg, 27-38 ft-Ib)
9. Turn the crankshaft 2 and 1/6 turns clockwise and verify
that the timing marks are correctly aligned.
10. Measure the timing belt deflection by applying moderate
pressure
(98 N, 10
kg, 221b) midway between the two cam-
shaft pulleys.
If the deflection is not correct, repeat from Step 7 above.
Deflection:
9.0-11.5mm (0.35-0.45 in) at 98 N (10 kg, 22 Ib)
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