Mazda RX-7 1989 Owner's Manual page 164

(Turbo models)
A;r pl,mp pulley
Wate r pump pul.'ey
Air conditioner drive belt (if equipped)
1. Loosen the lock nut on the idler pulley.
2. Turn the adjusting bolt until the correct
tension is obtained.
3. Tighten the lock nut and recheck the
tension.
New
Deflection
Used
Drive,
p1;lley
0 .24-0.31 in (6- 8mm)
0 .3 1- 0.35 in {8- 9mm)
Lock. nut
Ad1us\1ng M il
ld,er pu'lcy Air condil'one.-
co.T,pressor pulley
Power steering pump drive belt
(if equipped)
1. Loosen the lock nut on the idler pu lley.
2. Tu rn th e adjusting bolt until the correct
tension is obtained.
3. Tighten the !ock nut and recheck the
tension .
New
0.43- 0.51 in (11 - 13mm)
Deflection
Used 0.55-0.63 in (14-- 16mm)
ld 'cr pulley Lock nut Adjusting boll
Or,ve, pulley Powe r steering
pump p ulley