1983 Mazda 626 Timing Belt Removal & Installation
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CAUTION: This application is an interference engine. Do not rotate camshaft or crankshaft when timing belt is removed, or engine damage may occur. TIMING BELT Removal 1. Disconnect negative battery cable. On B2200, drain cooling system. Radiator removal may be required. Remove cooling fan and shroud. Remove distributor from front housing. Remove cooling fan pulley and bracket. Remove secondary air pipe assembly (carbureted engines). 2. On all models, remove all accessory drive belts. Remove crankshaft pulley. Remove timing belt covers. Remove baffle plate located in front of crankshaft sprocket. Note direction of baffle plate installation. Align camshaft pulley with front housing timing mark. See Fig. 1 or Fig. 2 . Mark an arrow on timing belt to indicate direction of travel. Remove tensioner lock bolt, tensioner and spring. Remove timing belt. On 2.2L engines, measure free length of tensioner spring.
CAUTION: This application is an interference engine. Do not rotate camshaft or crankshaft when timing belt is removed, or engine damage may occur. TIMING BELT Removal 1. Disconnect negative battery cable. On B2200, drain cooling system. Radiator removal may be required. Remove cooling fan and shroud. Remove distributor from front housing. Remove cooling fan pulley and bracket. Remove secondary air pipe assembly (carbureted engines). 2. On all models, remove all accessory drive belts. Remove crankshaft pulley. Remove timing belt covers. Remove baffle plate located in front of crankshaft sprocket. Note direction of baffle plate installation. Align camshaft pulley with front housing timing mark. See Fig. 1 or Fig. 2 . Mark an arrow on timing belt to indicate direction of travel. Remove tensioner lock bolt, tensioner and spring. Remove timing belt. On 2.2L engines, measure free length of tensioner spring.
Replace spring if free length is not 2.48″ (63 mm). See Fig. 3 . NOTE: Never twist, turn inside out, or bend timing belt. 1. Align camshaft pulley with front housing timing mark. Align crankshaft pulley with pointer on oil pump body. See Fig. 1 or Fig. 2 . Install tensioner, lock bolt and tensioner spring. Position timing belt tensioner
to its limit of travel toward the intake manifold side, and partially
tighten lock bolt. 2. Install timing belt onto crankshaft pulley and
then camshaft pulley. Install timing belt from tension side (right side,
as viewed from engine front). If timing belt is being reused, ensure
that arrow is pointing in direction of travel. 3. Loosen tensioner lock
bolt to apply tension. To apply equal tension to each side of timing
belt, turn crankshaft 2 revolutions in direction of travel. Tighten
tensioner lock bolt. Check for proper alignment of timing marks. 4.
Check for proper belt tension by measuring amount of deflection midway
between idler pulley and camshaft sprocket. Belt deflection should be
.30-.33″ (7.6-8.4 mm) when force of 22 lbs. (10 kg) is applied. See Fig.
1 or Fig. 2 . Repeat adjustment if deflection is not within
specification. 5. Reverse removal procedure to complete installation.
Adjust drive belts to proper tension.
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