torque on rocker arms????
Per GM SI website:
1) Install the rocker arms and bolts.
2) Rotate the crankshaft until the number one piston is at top dead center (TDC) of the compression stroke. In this position, cylinder number one rocker arms will be off lobe lift , and the crankshaft sprocket key will be at the 1:30 position. The engine firing order is 1,8,7,2,6,5,4,3. Cylinders 1,3,5, and 7 are left bank. Cylinder 2,4,6, and 8 are right bank
3) With the engine in the number one firing position, tighten the following valve rocker arm bolts:
• Tighten the exhaust valve rocker arm bolts 1,2,7, and 8 to 30 N·m (22 lb ft).
• Tighten the intake valve rocker arm bolts 1,3,4, and 5 to 30 N·m (22 lb ft).
4) Rotate the crankshaft 360 degrees
5) Tighten the following valve rocker arm bolts:
• Tighten the exhaust valve rocker arm bolts 3,4,5, and 6 to 30 N·m (22 lb ft).
• Tighten the intake valve rocker arm bolts 2,6,7, and 8 to 30 N·m (22 lb ft).
1) Install the rocker arms and bolts.
2) Rotate the crankshaft until the number one piston is at top dead center (TDC) of the compression stroke. In this position, cylinder number one rocker arms will be off lobe lift , and the crankshaft sprocket key will be at the 1:30 position. The engine firing order is 1,8,7,2,6,5,4,3. Cylinders 1,3,5, and 7 are left bank. Cylinder 2,4,6, and 8 are right bank
3) With the engine in the number one firing position, tighten the following valve rocker arm bolts:
• Tighten the exhaust valve rocker arm bolts 1,2,7, and 8 to 30 N·m (22 lb ft).
• Tighten the intake valve rocker arm bolts 1,3,4, and 5 to 30 N·m (22 lb ft).
4) Rotate the crankshaft 360 degrees
5) Tighten the following valve rocker arm bolts:
• Tighten the exhaust valve rocker arm bolts 3,4,5, and 6 to 30 N·m (22 lb ft).
• Tighten the intake valve rocker arm bolts 2,6,7, and 8 to 30 N·m (22 lb ft).
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Originally Posted by WS6store.com
2) Rotate the crankshaft until the number one piston is at top dead center (TDC) of the compression stroke. In this position, cylinder number one rocker arms will be off lobe lift , and the crankshaft sprocket key will be at the 1:30 position. The engine firing order is 1,8,7,2,6,5,4,3. Cylinders 1,3,5, and 7 are left bank. Cylinder 2,4,6, and 8 are right bank
But the crank key-way is at 1:30 twice... once when the sprockets are dot to dot and then again when the dots are both at 12:00... Which of these positions is cylinder 1 at TDC for the firing stroke???
Last edited by SideStep; Feb 15, 2006 at 10:54 PM.
