How do you change the timing chain on a Chevy Cobalt?
•Use a suitable tool with a rubber tip on the end. Feed the tool down through the camshaft drive chain to rest on the timing chain. Then give a sharp jolt diagonally downwards to release the tensioner. •Use a 24 mm wrench to hold the camshaft.
How to tighten camshaft bolts on Chevy Cobalt?
Tighten the NEW camshaft bolts to 85 N·m (63 lb ft) plus 30 degrees. •Install the camshaft cover. Refer to Camshaft Cover Replacement.
How do you install a fixed timing chain?
•Install the fixed timing chain guide. Tighten the fixed timing chain bolts to 10 N·m (89 lb in). •Apply sealant compound to thread and install the timing chain guide bolt access hole plug. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number. Tighten the chain guide plug to 90 N·m (59 lb ft).
How big is the tensioner on a timing chain?
A tensioner in the compressed state will measure 72 mm (2.83 in) (a) from end to end. A tensioner in the active state will measure 85 mm (3.35 in) (a) from end to end. 26.1. Remove the piston assembly from the body of the timing chain tensioner by pulling it out. 26.2. Install the J 45027-2 (2) into a vise. 26.3.
•Use a suitable tool with a rubber tip on the end. Feed the tool down through the camshaft drive chain to rest on the timing chain. Then give a sharp jolt diagonally downwards to release the tensioner. •Use a 24 mm wrench to hold the camshaft.
Tighten the NEW camshaft bolts to 85 N·m (63 lb ft) plus 30 degrees. •Install the camshaft cover. Refer to Camshaft Cover Replacement.
What to do if your timing chain is damaged?
If the timing chain tensioner, O-ring seal, or washer is damaged, replace the timing chain tensioner. •Measure the timing chain tensioner assembly from end to end. A new tensioner should be supplied in the fully compressed non-active state. A tensioner in the compressed state will measure 72 mm (2.83 in) (a) from end to end.
A tensioner in the compressed state will measure 72 mm (2.83 in) (a) from end to end. A tensioner in the active state will measure 85 mm (3.35 in) (a) from end to end. 26.1. Remove the piston assembly from the body of the timing chain tensioner by pulling it out. 26.2. Install the J 45027-2 (2) into a vise. 26.3.