Nissan 240sx S13 Air Conditioner Compressor Servicing: clutch coils, shaft seals, bearings and more

Nissan 240sx S13

COMPRESSOR APPLICATION

NOTE: Due to late changes, always refer to underhood AC specification label in engine compartment or AC compressor label while servicing AC system. If AC Specification label and specifications in this article differ, always use label specifications.

• Altima
  • Compressor: Zexel DKV-14C Rotary Vane
• Maxima
  • Compressor: Zexel DKS-16H 6-Cyl.
• Quest
  • Compressor: Ford FS-10 10-Cyl.
• Pathfinder and Pickup
  • Compressor: Zexel DKV-14C Rotary Vane
• Sentra
  • Compressor: Zexel DKV-14D Rotary Vane
• 240SX
  • Compressor: Calsonic V6 6-Cyl.
• 300ZX
  • Compressor: Zexel DKS-16H 6-Cyl.

AC COMPRESSOR REFRIGERANT SPECIFICATIONS

REFRIGERANT OIL and R-134a REFRIGERANT CAPACITY

• Altima
  • Oil Ounces: 6.8 Use Type "R" (Oil (Part No. KLH00-PAGR0) )
  • R-12 Ounces: 24.6-28.2
• Maxima
  • Oil Ounces: 6.8 (Use Type "S" Oil (Part No. KLH00-PAGS0).)
  • R-12 Ounces: 29.9-33.4
• Pathfinder and Pickup
  • Oil Ounces: 6.8 (Use Type "R" Oil (Part No. KLH00-PAGR0).)
  • R-12 Ounces: 26.4-29.9
• Quest
  • Front AC
    • Oil Ounces: 7.0 (Use Type "F" Oil (Part No. KLH00-PAGQU).)
    • R-12 Ounces: 32.0
  • Front and Rear AC
    • Oil Ounces: 10 (Use Type "F" Oil (Part No. KLH00-PAGQU).)
    • R-12 Ounces: 52.0
• Sentra
  • Oil Ounces: 6.8 (Use Type "R" Oil (Part No. KLH00-PAGR0).)
  • R-12 Ounces: 21.1-24.6
• 240SX
  • Oil Ounces: 6.8 (Use Type "S" Oil (Part No. KLH00-PAGS0).)
  • R-12 Ounces: 29.9-33.4
• 300ZX
  • Oil Ounces: 6.8 (Use Type "S" Oil (Part No. KLH00-PAGS0).)
  • R-12 Ounces: 19.4-22.9

NOTE: Due to variety of clutch and shaft seal configurations, obtain appropriate AC compressor service tools for compressor being serviced.

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FORD (HALLA) FS-10

CLUTCH COIL

Removal
1. Using Clutch Holder (000 41 0812 05), remove clutch plate bolt. Using an 8-mm bolt threaded into clutch plate, remove clutch plate and shim(s).
2. Remove snap ring and pulley assembly. Install Shaft Protector (49 UN01 047) over shaft seal opening. Use a 2-jaw puller to remove clutch coil from compressor.

Installation
1. Ensure clutch coil mounting surface is clean. Use Coil Installer (49 UN01 046) and 2-jaw puller engaged to rear side of compressor front mounts to press coil into place.
2. Install pulley assembly. Install pulley assembly snap ring with bevel side of snap ring facing out. Install shim(s) and clutch plate. Install a new clutch plate bolt and tighten to 97-115 INCH lbs. (11-13 N.m).
3. Use a feeler gauge to check clearance between clutch plate and pulley assembly. Clearance should be .018-.030" (.46-.76 mm). If clearance is incorrect, add or remove shims as necessary.

SHAFT SEAL

Removal
1. Using Clutch Holder (000 41 0812 05), remove clutch plate bolt. Using an 8-mm bolt threaded into clutch plate, remove clutch plate and shim(s).
2. Remove shaft felt seal. Thoroughly clean seal area of compressor. Remove shaft seal snap ring. Position Shaft Seal Remover (49 UN01 044) over compressor shaft.
3. Push shaft seal remover downward against seal. Ensure end of shaft seal remover is engaged with inside of seal. Rotate shaft seal remover clockwise to expand remover tip inside seal. Pull shaft seal from compressor.

Installation
1. Lubricate shaft seal protector and shaft seal with refrigerant oil. Install shaft seal on shaft seal protector so lip seal is toward compressor (large end of shaft seal protector).
2. Install shaft seal protector on compressor shaft. Using Shaft Seal Installer (49 UN01 043), push shaft seal down seal protector until seal is seated.
3. Remove shaft seal installer and protector. Install a new shaft seal retaining snap ring and shaft seal felt. Install shim(s) and clutch plate. Install a new clutch plate bolt and tighten to 97-115 INCH lbs. (11-13 N.m).
4. Use a feeler gauge to check clearance between clutch plate and pulley assembly. Clearance should be .018-.030" (.46-.76 mm). If clearance is incorrect, add or remove shims as necessary.

ZEXEL ROTARY VANE

CLUTCH COIL AND BEARING

Removal
1. Hold clutch disc using Clutch Disc Wrench (J-38874) and remove center bolt. Using Clutch Disc Puller (J-38874), remove clutch disc and adjustment shim(s).
2. Remove snap ring. Remove pulley using Pilot (J-39023) and universal puller. Remove clutch coil. See Fig. 1.

Installation
1. Ensure coil lead is installed in original position. Install and tighten coil screws. Press pulley onto compressor using Pulley Installer (J-339024). Install snap ring and adjustment shim(s).
2. Install clutch disc and tighten center bolt to 11-13 ft. lbs. (15-18 N.m). Using feeler gauge, ensure clearance between clutch disc and pulley is .012-.024" (.30-.60 mm). If clearance is incorrect, add or remove shim(s) as necessary. Break-in clutch by engaging and disengaging clutch 30 times.

NOTE: Shaft seal servicing procedure is not available from Nissan. Tighten thermal protector, if removed, to 11-13 ft. lbs. (15-18 N.m).

Fig. 1: View Of Zexel DKV-14C Rotary Vane Compressor (Altima)

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ZEXEL 6-CYLINDER

CLUTCH COIL AND BEARING

Removal
1. Using Clutch Disc Wrench (J-37877), hold clutch hub stationary and remove shaft nut. Remove adjustment shim(s) and clutch disc using Clutch Disc Puller (J-26571-A).
2. Bend lock washer away from lock nut. See Fig. 2 . Remove lock nut with Wrench (J-37882). Remove pulley by hand or, if difficult to remove, use Pilot (J-26720-A) and universal puller. Remove snap ring, bearing, and clutch coil as necessary.

Installation
1. To install, reverse removal procedure. Ensure key is installed in compressor shaft keyway. Tighten lock nut to 25-29 ft. lbs. (34-39 N.m). Bend lock washer against lock nut.
2. Install clutch disc and tighten shaft nut to 10-12 ft. lbs (14-16 N.m). Using feeler gauge, ensure air gap between pulley and clutch disc is .012-.024" (.30-.60 mm). If clearance is incorrect, add or remove shim (s) as necessary. Break-in compressor clutch assembly by engaging and disengaging clutch 30 times.

Fig. 2: Exploded View Of Zexel DKS-16H 6-Cylinder Compressor (300ZX)




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Nissan 240sx S13

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