Manifold torque sequence.
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 8,892
Likes: 981
From: Whitby Ont.
Manifold torque sequence.
Did a lot of searching for the torque pattern on exhaust manifold,only found one that was for a c6 ls7 I believe. pattern was 6 3 1 2 4 5, I am sure this would be the same for a C5 ? I don t think it would be different anyway,could someone verify for me please.
Thanks Al
Thanks Al
Last edited by walleyejack; Aug 14, 2011 at 11:02 PM.
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 13
From: Kinston North Carolina
Apply a 5 mm (0.2 in) wide band of threadlock GM P/N 12345493 (Canadian P/N 10953489), or equivalent to the threads of the exhaust manifold bolts.
Position the exhaust manifold and a NEW gasket into place.
Install the exhaust manifold bolts. Tighten
Tighten the exhaust manifold bolts a first pass to 15 N·m (11 lb ft). Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from side-to-side, working toward the outside bolts.
Tighten the exhaust manifold bolts a final pass to 25 N·m (18 lb ft). Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from side-to-side, working toward the outside bolts.
Bend over the exposed edge of the exhaust manifold gasket at the rear of the cylinder head.
Position the exhaust manifold and a NEW gasket into place.
Install the exhaust manifold bolts. Tighten
Tighten the exhaust manifold bolts a first pass to 15 N·m (11 lb ft). Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from side-to-side, working toward the outside bolts.
Tighten the exhaust manifold bolts a final pass to 25 N·m (18 lb ft). Tighten the exhaust manifold bolts beginning with the center two bolts. Alternate from side-to-side, working toward the outside bolts.
Bend over the exposed edge of the exhaust manifold gasket at the rear of the cylinder head.
Last edited by byronhunter; Aug 14, 2011 at 11:32 PM.
Burning Brakes
Joined: Jan 2008
Posts: 941
Likes: 3
From: Grand Rapids MI
Are you referring to intake or exhaust manifolds? I assume from your other thread you are talking about exhaust (headers).
FWIW i have had both on/off multiple times with original gaskets. Doesnt much matter, i just start from the middle and work outward.
FWIW i have had both on/off multiple times with original gaskets. Doesnt much matter, i just start from the middle and work outward.
