Mercedes SL500 R107 – Torque Setting

Having now found the torque settings for our 1987 Mercedes SL500, thought it was best to share as they are very hard to come by.

Tightening Torques – Cylinder Head Instructions

Cylinder head bolts, tighten in the following stages:

1. 30 Nm
2. 60 Nm
3. Wait 10 minutes
4. 60 Nm

Other engine tightening torques:

• Main bearings – Stage 1: 25 Nm
• Main bearings – Stage 2: 50 Nm
• Big end bearings – Stage 1: 45 Nm
• Big end bearings – Stage 2: 90′
• Flywheel/driveplate – 35 Nm+90′
• Crankshaft pulley/damper centre bolt – 400 Nm
• Spark plugs – 30 Nm

Chassi tightening torques:

• Road wheels – 100 Nm