General Motors — Seal Ring in Rear Camshaft Housing, Replace
A General Motors service procedure — check it applies to your exact model before use.
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Procedure
- Remove, Disconnect: Remove DIS ignition module. Remove carrier plate from camshaft housing.
- Clean: Clean sealing surfaces and remove gasket remnants.
- Install, Connect: Coat seal ring of carrier plate with silicone grease (white) and attach carrier plate to camshaft housing - tightening torque 12 Nm / 9 lbf.ft.
- Install DIS ignition module - tightening torque 12 Nm / 9 lbf.ft.
Specs & torque values
- Tightening torque, carrier plate to camshaft housing: 12 Nm / 9 lbf.ft
- Tightening torque, DIS ignition module: 12 Nm / 9 lbf.ft
Source: manual:PSI_Tier_2__1.6L_PFI_Certified_Engine_Service_Manual_PSI1P6LP.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.