Installation Procedure

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Tensioner Shoe & Ratchet Lever

Courtesy of GENERAL MOTORS COMPANY

Collapse the right secondary camshaft chain tensioner using the following procedure:
1. Rotate the ratchet release lever (2) counterclockwise and hold.
2. Collapse the tensioner shoe (1) and hold.
3. Release the ratchet lever (2).
Slowly release the pressure on the shoe (1), until the ratchet lever (2) moves to the first detent and a "click" is heard and felt.
Collapse the tensioner shoe (1) and hold.

Fig 2: Locking Tensioner Shoe In Collapsed Position

Courtesy of GENERAL MOTORS COMPANY

Insert a pin through the hole in the release lever in order to lock the tensioner shoe in the collapsed position.

Fig 3: Identifying Right Secondary Camshaft Drive Chain Tensioner to Engine Block Bolts

Courtesy of GENERAL MOTORS COMPANY

CAUTION:

Refer to Fastener Caution .

NOTE:

Ensure the tensioner release lever is facing outward.

Install the right secondary camshaft drive chain tensioner and retaining bolts.
Tighten

Tighten the secondary camshaft drive chain tensioner bolts to 25 N.m (18 lb ft).
Remove the pin holding the tensioner to tighten any slack in the timing chain.

Fig 4: View Of Mechanics Wire, Right Secondary Camshaft Drive Chain Shoe & Front Cover Bolt

Courtesy of GENERAL MOTORS COMPANY

Remove the mechanics wire (1) supporting the right secondary camshaft drive chain shoe (3).
Remove the engine front cover bolt (2) from the front of the engine.
Install the engine front cover. Refer to Engine Front Cover Replacement .