B18 / B20 Torque Specs
The ultimate list of torque specs for B18A1, B18B1, B20B, B20Z2 engines. I made this list because I was tired of digging through the 94-01 Integra and 97 - 02 CRV factory service manuals to find them all.
Note: VTEC engines (B16A, B18C1, B18C5, etc…) have different specs and shouldn’t use this list!
Head
- Head bolts: 61 ft-lbs (torque in 2 steps, with proper sequence)
- Cam gears: 27 ft-lbs
- Cam caps: 7.2 ft-lbs
- Valve lash nuts: 18 ft-lbs
- Valve cover nuts: 7.2 ft-lbs
- Intake manifold nuts: 17 ft-lbs
- Exhaust manifold nuts: 23 ft-lbs
- Throttle body: 14 ft-lbs
- IACV: 16 ft-lbs
- FITV: 17 ft-lbs
- Fuel rail: 9 ft-lbs
- Distributor: 17 ft-lbs
Block
- Timing belt tensioner: 40 ft-lbs
- Crank pulley: 130 ft-lbs
- Timing belt cover bolts: 7.2 ft-lbs
- Water pump bolts: 8.7 ft-lbs
- Oil pickup: 8 ft-lbs
- Oil baffle plate: 8 ft-lbs
- Oil pan: 9 ft-lbs
- Oil pump m8x1.25 bolts: 17 ft-lbs
- Oil pump m6x1.0 bolts: 8 ft-lbs
- Rear main seal: 8 ft-lbs
- Thermostat housing: 8.7 ft-lbs
- Thermostat cover: 8 ft-lbs
- Upper radiator outlet: 8 ft-lbs
- Half shaft: 28 ft-lbs
- Crankshaft bearing caps: 56 ft-lbs
- Rod bearing caps: 23 ft-lbs
Accessories
- PS pump: 17 ft-lbs
- PS pump bracket: 33 ft-lbs
- Alternator bracket: 33 ft-lbs
- Alternator top bolt: 17 ft-lbs
- Alternator bottom bolt: 33 ft-lbs
- AC compressor: 17 ft-lbs
- AC compressor bracket bolts: 33 ft-lbs
Transmission
- Bell housing bolts: 47 ft-lbs
- Shift linkage bolt: 16 ft-lbs
- Flywheel: 76 ft-lbs (Don’t use this if you have ARP bolts)
- Pressure plate: 19 ft-lbs (Don’t use this if you have ARP bolts)
- Slave cylinder: 16 ft-lbs
- Starter: 33 ft-lb
ARP Bolts
- Flywheel: 95 ft-lbs https://tech.arp-bolts.com/instructions/208-2802.pdf
- Pressure plate: 25 ft-lbs https://tech.arp-bolts.com/instructions/108-2202.pdf
References
94-01 Integra Factory Service Manual
- Page 5-18 (Engine accessories)
- Page 6-14 (Cam caps, cam gears)
- Page 7-23 (Crankshaft and rod bearing caps)
- Page 7-24 (Rear main seal)
- Page 8-3 (Oil pan, oil pump, pickup tube, baffle plate)
- Page 9-2 (Intake manifold)
- Page 10-5 (Thermostat)
- Page 10-9 (Water pump)
- Page 11-105 (Fuel rail)
- Page 12-3 (Flywheel, pressure plate)
- Page 23-92 (Distributor)