Tools Required

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

J 44221 Camshaft Holding Tool

Fig 1: View Of Camshafts

Courtesy of GENERAL MOTORS CORP.

Coat the camshaft journals, camshaft journal thrust face, and camshaft lobes with clean engine oil.
Install the exhaust camshaft.
Install the intake camshaft.

Fig 2: Installing J 44221 To Camshafts

Courtesy of GENERAL MOTORS CORP.

Install J 44221 with the camshaft flats up and the number 1 cylinder at top dead center.

Fig 3: View Of Camshaft Caps

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Install the same camshaft cap onto the same camshaft journal from which it was removed. The camshaft caps are pin stamped for direction and numerical order.

Install the exhaust camshaft caps.
Install the intake camshaft caps.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the camshaft cap bolts. Tighten the bolts evenly in order to compress the valve springs before final torque.
Tighten: Tighten the camshaft cap bolts to 12 N.m (106 lb in).
Remove J 44221 .