Tools Required

1. Lubricate the rotors (432, 433) and valve (420) with clean engine oil.
2. Install the rotors (432, 433) to original direction.
3. Install the cover (434).
4. Apply threadlock GM P/N 12346240 (Canadian P/N 10953493), or equivalent, to the threads of the bolts (435).

Notice: Refer to Fastener Notice in the Preface section.

5. Install the bolts (435).

Tighten
Tighten the bolts to 6 N·m (53 lb in).

6. Apply sealant GM P/N 12346240 (Canadian P/N 10953493) to the threads of the bolt (422).
7. Install the valve (420), spring (421) and bolt (422). The valve must slide freely in the housing bore.

Tighten
Tighten the bolt to 39 N·m (28 lb ft).

8. Apply sealant GM P/N 12346240 (Canadian P/N 10953493), or equivalent, to the threads of the switch (705).
9. Install the switch (705).

Tighten
Tighten the switch to 18 N·m (13 lb ft).

10. Apply sealant GM P/N 12346240 (Canadian P/N 10953493) to the threads of the plugs (438, 439).
11. Install the plugs (438, 439).

Tighten

1. Tighten plug (438) to 44 N·m (32.5 lb ft).
2. Tighten plug (439) to 34.3 N·m (25.3 lb ft).



12. Use the EN 46347  (2) and the EN 46342  (1) in order to install the oil seal. Gently tap and install the NEW oil seal until the tool bottoms on the oil pump housing.