Acura Integra LS Manual Transmission

The Acura Integra LS features a 5-speed manual transmission known for its smooth shifting, precise gear engagement, and sporty driving dynamics. This transmission is paired with the B18B1 1.8L engine, providing excellent power delivery and responsive performance. Below are key sections covering specifications, operation, maintenance, troubleshooting, and technical details.

1. Transmission Specifications 2. Operation Guidelines 3. Maintenance Schedule 4. Fluid Requirements 5. Shift Pattern & Controls 6. Common Issues 7. Clutch System 8. Performance Tips 9. Warranty Information 10. Technical Service 11. Troubleshooting

Transmission Specifications

Key components: 5-speed manual gearbox, hydraulic clutch system, limited-slip differential (optional), and shift linkage assembly.

Specification	Description
Transmission Type	5-speed manual, front-wheel drive
Gear Ratios	1st: 3.230, 2nd: 1.900, 3rd: 1.269, 4th: 0.966, 5th: 0.742, Reverse: 3.000
Final Drive Ratio	4.266:1
Synchromesh	All forward gears
Clutch Type	Hydraulic, single disc dry clutch
Shift Linkage	Cable-operated
Fluid Capacity	2.2 quarts (2.1 liters)
Fluid Type	Honda MTF or equivalent 10W-30 motor oil
Case Material	Aluminum alloy

Operation Guidelines

Proper shifting techniques for optimal performance and longevity.

Start engine: Depress clutch fully, shift to neutral before starting.
Engage gears: Smoothly release clutch while applying gentle throttle.
Shifting: Always depress clutch fully when changing gears.
Reverse gear: Come to complete stop before engaging; may require slight forward movement.

WARNING! Do not rest hand on shift lever while driving; avoid aggressive shifting when transmission is cold.

Maintenance Schedule

Regular maintenance ensures optimal transmission performance and longevity.

Fluid change: Every 30,000 miles or 2 years
Clutch fluid: Check reservoir monthly; replace every 3 years
Shift linkage: Inspect for wear every 15,000 miles
Clutch system: Inspect every 60,000 miles

CAUTION! Use only recommended fluids; improper fluids can damage synchronizers.

Fluid Requirements

Transmission Fluid: Honda Manual Transmission Fluid (MTF) or equivalent 10W-30 motor oil
Capacity: 2.2 quarts (2.1 liters)
Change Interval: 30,000 miles or 2 years
Clutch Fluid: DOT 3 or DOT 4 brake fluid
Drain Plug Torque: 29 lb-ft (39 Nm)
Fill Plug Torque: 29 lb-ft (39 Nm)

Shift Pattern & Controls

Standard H-pattern shift layout with reverse lockout mechanism.

Shift Pattern: R 1 3 5 | | | | --- --- --- --- | | | | 2 4

Controls: Clutch pedal, shift lever, reverse lockout (lift collar or push down), gear position indicator.

Operation: Smooth, precise shifts characteristic of Honda/Acura manual transmissions. Reverse gear requires extra effort or collar manipulation to prevent accidental engagement.

Common Issues

Typical problems and their indications with the LS manual transmission.

Grinding gears: Worn synchronizers or low fluid level
Difficulty shifting: Damaged shift linkage or clutch issues
Transmission noise: Bearings or gear wear
Fluid leaks: Damaged seals or gaskets

Tip: Address shifting issues promptly to prevent further damage.

Clutch System

Hydraulic clutch system components and maintenance.

Clutch pedal: Adjust free play (0.4-0.8 inches)
Master cylinder: Mounted on firewall
Slave cylinder: Mounted on transmission case
Clutch disc: Organic material, 212mm diameter
Pressure plate: Diaphragm spring type
Flywheel: Single-mass design

WARNING! Do not ride clutch pedal; complete disengagement when shifting.

Performance Tips

Enhancing driving experience and transmission longevity.

Warm up: Allow transmission to reach operating temperature before aggressive driving
Rev-matching: Practice for smoother downshifts
Shift points: Optimal between 3,000-6,000 RPM for normal driving
Clutch control: Smooth engagement prevents drivetrain shock

Warranty Information

Original warranty coverage and limitations.

Standard Acura warranty: 4 years/50,000 miles. Transmission components covered against defects. Clutch considered wear item with limited coverage. Aftermarket modifications may void warranty.

Technical Service

Professional service procedures and specifications.

Transmission removal requires engine support, axle removal, and linkage disconnection. Special tools: clutch alignment tool, transmission jack, torque wrench. Factory service manual recommended for major repairs.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Grinding when shifting	Low fluid, worn synchros	Check fluid level; replace if contaminated; inspect synchronizers
Difficulty engaging gears	Clutch not disengaging	Check clutch hydraulic system; adjust pedal free play
Transmission noise in neutral	Input shaft bearing	Inspect bearing; replace if worn
Jumping out of gear	Worn shift linkage or detents	Inspect shift mechanism; replace worn components
Fluid leaks	Damaged seals or gaskets	Identify leak source; replace seals; refill with proper fluid

Service: Contact Acura dealer or certified transmission specialist for major repairs.

Support: 1-800-TO-ACURA; www.acura.com