Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Engine Speed Sensor



Crankshaft, Removing And Installing

Sensor Wheel (For Engine RPM) Installing

Threaded Connection Torque

Sensor Wheel Bolt: 10 Nm
- + 1/4 turn (90 °)

Always replace Sensor Wheel Bolt

Tightening Order






1. First lightly tighten all new securing bolts by hand.

2. Tighten securing bolt -1- 10 Nm
- + 1/4 rotation (90 °).

3. Now tighten securing bolts -2- 10 Nm
- + 1/4 rotation (90 °).