Page 249 of 514

1994-98 ENGINE COOLING
Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 Miata & 
Protege 
APPLICATION 
Information presented in this article applies to the following years and models. See YEAR & MODEL 
APPLICATION . 
YEAR & MODEL APPLICATION 
ADJUSTMENTS 
B4000 & MILLENIA (2.3L) 
YearsModel
1997B2300
1997B4000
1998B2500, B3000 & B4000
1997-98Millenia
1997-98MPV
1994-97MX-5 Miata
1995-98Protege
NOTE: If a new belt is used, adjust belt deflection at midpoint of new belt specification.
NOTE: "B" Series Pickup and Millenia 2.3L are equipped with serpentine belts that are 
automatically adjusted by tensioner. Millenia is equipped with 2 serpentine belts 
(alternator and power steering pump). Replace belts if tensioner indicates belt 
is out of adjustment range. See Fig. 1
 - Fig. 3 . DO NOT apply belt dressing to 
serpentine belt.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
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Fig. 1: Checking Serpentine Belt Tension (B4000) 
Courtesy of MAZDA MOTORS CORP. 
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
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        Page 251 of 514
Fig. 2: Checking Alternator Serpentine Belt Tension (Millenia, 2.3L) 
Courtesy of MAZDA MOTORS CORP. 
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
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Fig. 3: Checking Power Steering Pump Serpentine Belt Tension (Millenia, 2.3L) 
Courtesy of MAZDA MOTORS CORP. 
MILLENIA 
Alternator (2.5L) 
Loosen idler pulley locknut and adjust belt deflection by turning adjusting bolt. See Fig. 4 and Fig. 19 . See 
ADJUSTMENT SPECIFICATIONS
 . Tighten bolts to specification. See TORQUE SPECIFICATIONS.
NOTE: If a new belt is used, adjust belt deflection at midpoint of new belt specification.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
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Fig. 4: Adjusting Alternator Belt (Millenia, 2.5L) 
Courtesy of MAZDA MOTORS CORP. 
Power Steering Pump (2.5L) 
Loosen idler pulley locknut and adjust belt deflection by turning adjusting bolt. See Fig. 5 and Fig. 20 . See 
ADJUSTMENT SPECIFICATIONS
 . Tighten bolts to specification. See TORQUE SPECIFICATIONS.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
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Fig. 5: Adjusting Power Steering Pump Belt (Millenia, 2.5L) 
Courtesy of MAZDA MOTORS CORP. 
MPV 
Alternator 
Loosen alternator bolts and adjust belt deflection by levering generator outward and applying tension. See Fig. 
6 and Fig. 21 . See ADJUSTMENT SPECIFICATIONS . Tighten bolts to specification. See TORQUE 
SPECIFICATIONS . 
NOTE: If a new belt is used, adjust belt deflection at midpoint of new belt specification.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
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Fig. 6: Adjusting Alternator Belt (MPV) 
Courtesy of MAZDA MOTORS CORP. 
A/C Compressor 
Loosen locknut and adjust belt deflection by turning adjusting bolt. See Fig. 7 and Fig. 23 . See 
ADJUSTMENT SPECIFICATIONS
 . Tighten bolts to specification. See TORQUE SPECIFICATIONS.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
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Fig. 7: Adjusting A/C Compressor Belt (MPV) 
Courtesy of MAZDA MOTORS CORP. 
Power Steering Pump 
Loosen locknut and adjust belt deflection by turning adjusting bolt. See Fig. 8 and Fig. 22 . See 
ADJUSTMENT SPECIFICATIONS
 . Tighten bolts to specification. See TORQUE SPECIFICATIONS.
 
1997 Mazda MX-5 Miata 
1994-98 ENGINE COOLING Specifications & Drive Belt Routing - B2300, B2500, B3000, B4000, Millenia, MPV, MX-5 
Miata & Protege
  
Microsoft  
Sunday, July 05, 2009 1:57:32 PMPage 8 © 2005 Mitchell Repair Information Company, LLC.