Torque Measurements are in foot – pounds.
The following is a guide for torquing the different fasteners. Remember, if original fasteners are used, their tension loss is unknown due to the number of times they have been reused. Therefore, the torque measurement might need to be adjusted. It is recommended to use all new fasteners. See “Nuts and Bolts” article in How to Restore you Model A, Volume 3.
Main Bearing Cap Bolts …………………………………….. 70 – 80
Camshaft Nut …………………………………………………….. 100
Connecting Rods ……………………………………………….. 45
Head ………………………………………………………………….. 50
Torque up in three stages using correct sequence with final torque after engine is hot.
Water neck – Torque with caution ………………………… 50
Manifold – Exhaust …………………………………………………. 55
Timing Cover ………………………………………………………….. 25
Water Inlet ……………………………………………………………… 40
Pressure Plate – Use Grade 5 Bolts ………………………… 25
Axle housing to differential ………………………………….. 35
Torque tube to Differential …………………………………… 35
Oil Pan ……………………………………………………………………. 15 – 25
Valve Cover ……………………………………………………………. 15 – 25
Flywheel ………………………………………………………………… 55
Rear Axle Shaft Nut ………………………………………………. 125
