Pulley Boss Assembly Note

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata, 2004 Mazda MX-5 Miata, and 2003 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Install the pulley boss and pulley lock bolt. Turn the crankshaft clockwise 1 and 5/6 times, and verify that the timing mark and the tension set mark A are aligned.

Fig 1: Aligning Timing Mark & Tension Set Mark
Courtesy of MAZDA MOTORS CORP.
Loosen the tensioner lock bolt to apply tension to the timing belt. Do not apply tension other than that of the tensioner spring.
Tighten the tensioner lock bolt.

Fig 2: Identifying Tensioner Lock Bolt
Courtesy of MAZDA MOTORS CORP.

NOTE:

For the crankshaft side, face the locating pin on the pulley boss straight up.

Fig 3: Aligning Timing Marks

Courtesy of MAZDA MOTORS CORP.

Turn the crankshaft clockwise 2 and 1/6 times, and verify that all timing marks are correctly aligned.
Inspect for the belt deflection at the point indicated by applying moderate pressure 98 N {10 kgf, 22 lbf}.
Timing Belt Deflection
1. 8.5-11.5 mm {0.34-0.45 in}
If the timing belt deflection is not as specified, remove the timing belt and repeat from TIMING BELT ASSEMBLY NOTE .

Fig 4: Checking Timing Belt Deflection
Courtesy of MAZDA MOTORS CORP.
Hold the crankshaft by using the SST .

Fig 5: Holding Crankshaft
Courtesy of MAZDA MOTORS CORP.