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Home >> Mazda >> 1990 >> 929 Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul - JATCO E4N71B, L4N71B & JM600, & MAZDA N4A-El & N4A-Hl >> Component Disassembly & Reassembly >> Direct Clutch >> Inspection

Direct Clutch: Inspection

Check splined grooves on steel plates and drum. Check spring free length of 1.200" (30.50 mm). Ensure ball in piston moves freely. Check facing of friction plates. Check clearance between snap ring and retainer plate or snap ring and side plate. Replace components as necessary. See RETAINER PLATE-TO-SNAP RING SPECIFICATIONS  table. Check drive plate thickness. See DRIVE PLATE SPECIFICATIONS  table.

RETAINER PLATE-TO-SNAP RING SPECIFICATIONS

Application In. (mm)
Direct Clutch
Mazda MX-5/Miata, RX7 (1989-90), 929 (1988-90) & All Nissan Max. .008 (.20)
Chrysler Conquest, Mitsubishi Starion & All Others .063-.071 (1.60-1.80)
Front Clutch
Chrysler Conquest & Mitsubishi Starion .063-.079 (1.60-2.00)
Mazda B2200, B2600 (1990) W/G6 Engine, MX-5/Miata, 929 & Chrysler Conquest & Mitsubishi Starion .035-.043 (.90-1.10)
Nissan & All Others .063-.071 (1.60-1.80)
Rear Clutch
Chrysler Conquest, Mitsubishi Starion, Mazda MPV & All Nissans .031-.059 (.80-1.50)
Mazda B2200, B2600, MX-5/Miata RX7 (1989-90) & 929 .031-.039 (.80-1.00)
Low Reverse Clutch
Chrysler Conquest & Mitsubishi Starion .031-.048 (.80-1.25)
Mazda B2200, B2600 (1990) & MX-5/Miata .031-.039 (.80-1.00)
All Other Mazda & Nissan .031-.041 (.80-1.05)
DRIVE PLATE SPECIFICATIONS

Application Thickness - In. (mm)
Direct, Front & Rear
Chrysler Conquest, Mitsubishi Starion, Mazda B2200, B2600 (1990), MPV & RX7 (1989-90), 929 & All Nissan Models .055-.063 (1.40-1.60)
Low-Reverse
Chrysler Conquest & Mitsubishi Starion .059-.065 (1.50-1.65)
All Mazda & Nissan .071-.080 (1.80-2.05)