Torque Specs
Posted by Zachary Visker on
***MIATASOURCE IS NOT RESPONSIBLE FOR MIS-TORQUED OR IMPROPER SPECS. THIS IS JUST A CHEAT SHEET BASED ON SPECS FOUND ONLINE! PLEASE RESEARCH ON ANY SPECS YOU ARE UNSURE!***
ENGINE (EXTERNAL)
|
PART |
SPEC |
|
Crank(90-91)Short Nose |
80-87 FT/LB(Loctite 242) |
|
Crank(91-05)Long Nose |
116-122 FT/LB(Loctite 242) |
|
Crank Balancer(10mm) |
109-151 INCH |
|
Cam Gear(14mm) |
37-44 FT/LB |
|
Cam Gear(VVT Intake)(17mm) |
47-61 FT/LB |
|
Valve Cover(Correct Sequence)(10mm) |
43-78 INCH |
|
Spark Plugs |
11-17 FT/LB |
|
Water Pump(12mm) |
14-19 FT/LB |
|
Water Pump Inlet(12mm) |
14-19 FT/LB |
|
Water Pump Pulley(10mm) |
69-151 INCH |
|
Thermostat Cover(12mm) |
14-19 FT/LB |
|
Thermostat Housing(To Block)(12mm) |
14-19 FT/LB |
|
Oil Pan (10mm) |
69-95 INCH |
|
Oil Pickup Tube(10mm) |
70-95 INCH |
|
Oil Drain Plug |
22-30 FT/LB |
|
Timing Belt Tensioner/Idler(14mm) |
28-38 FT/LB |
|
Engine Mount Bracket to Block(14mm) |
27-38 FT/LB |
|
Engine Mount to Bracket/Subframe(14mm) |
42-58 FT/LB |
ENGINE ACCESSORIES
|
PART |
SPEC |
|
Alternator Pivot |
27-38 FT/LB |
|
Alternator Tensioner |
14-19 FT/LB |
|
Power Steering Pump Bracket |
28-38 FT/LB |
|
Power Steering Pump Pivot |
27-40 FT/LB |
|
Power Steering Tensioner |
14-18 FT/LB |
|
AC Compressor Bracket(4 Side)(14mm) |
27-38 FT/LB |
|
AC Compressor Bracket(1 Front)(12mm) |
14-19 FT/LB |
|
AC Compressor Mounting Bolts(12mm) |
10-15 FT/LB |
|
Intake Manifold(12mm) |
17-21 FT/LB |
|
Intake Manifold Bracket(14mm) |
27-40 FT/LB |
|
Exhaust Manifold(14mm) |
29-33 FT/LB |
|
Throttle Body (12mm) |
14-19 FT/LB |
TRANSMISSION/DIFFERENTIAL
|
Part |
Spec |
|
Bellhousing (17mm) |
48-65 FT/LB |
|
Flywheel(19mm) |
71-75 FT/LB |
|
Pressure Plate(14mm) |
14-19 FT/LB |
|
Transmission Input Cover(14mm) |
14-18 FT/LB |
|
Transmission Drain(24mm) |
29-43 FT/LB |
|
Transmission Fill(Square 14mm) |
18-29 FT/LB |
|
Starter(12/14mm) |
28-38 FT/LB |
|
Slave Cylinder(12mm) |
12-16 FT/LB |
|
Driveshaft(14mm) |
20-22 FT/LB |
|
Power Plant Frame |
77-91 FT/LB |
|
Differential Mount(Center 17mm) |
69-75 FT/LB |
|
Differential Mount(2-12mm) |
18-22 FT/LB |
|
Differential Drain(24mm) |
29-40 FT/LB |
|
Differential Fill(23mm) |
29-40 FT/LB |
To the miata-source.com owner, Good to see your posts!
The ‘short nose crank bolt’ torque of 80-87 ft-lbs was updated in a Mazda paper as early as 1991, to 97-104 ft-lbs. Recent work by frequent posters on miata.net have a number of only successful installations with torques as high as 115 ft-lbs. The original Mazda spec has been less reliable over time in reassembling, and experience shows no risk by increasing to the later Mazda spec in work by many Miata owners.