Water Pump and Balance Shaft Chain and Tensioner Install

WARNING: This page is about a different variant/trim than selected.

Fig 1: View Of Upper Balance Shaft Drive Chain Guide

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: If the balance shafts are not properly timed to the engine, the engine may vibrate and make noise.

Install the upper balance shaft chain guide and bolts.
Tighten: Tighten the upper balance shaft chain guide bolts to 15 N.m (11 lb ft).

Fig 2: Exploded View Of Small Balance Shaft Drive Chain Guide

Courtesy of GENERAL MOTORS CORP.

Install the small balance shaft chain guide.
Install the balance shaft chain guide bolts.
Tighten: Tighten the chain guide bolts to 15 N.m (11 lb ft).

Fig 3: View Of Adjustable Balance Shaft Chain Guide

Courtesy of GENERAL MOTORS CORP.

Install the adjustable balance shaft drive chain guide.
Install the adjustable balance shaft drive chain guide bolts.
Tighten: Tighten the chain guide bolts to 10 N.m (89 lb in).

Fig 4: View Of Timing Chain Tensioner

Courtesy of GENERAL MOTORS CORP.

Reset the timing chain tensioner by performing the following steps:
1. Turn the tensioner plunger 90 degrees in its bore and compress the plunger.
2. Turn the tensioner back to the original 12 o'clock position and insert a paper clip through the hole in the plunger body and into the hole in the tensioner plunger.
Install the timing chain tensioner.
Install the chain tensioner bolts.
Tighten: Tighten the chain tensioner bolts to 10 N.m (89 lb in).
Remove the paper clip from the balance shaft drive chain tensioner.