Pushrod check!?!?!?
06-30-2006, 02:29 PM
#1
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Pushrod check!?!?!? Okay, here's what i wanna do. Tomorrow is saturday, so i wanna check my pushrods, and make sure i don't have any bent!!! What do i need? ANy special tools? I know i need valve cover gaskets probably. ANything else, Somebody who's done this, let me know what tools and what gaskets, if any? Thanks
06-30-2006, 07:10 PM
#5
22 ft/lbs. for the rockers. And this for setting them properly:
Per GM SI website:
1) Install the rocker arms and bolts. Meaning put in the rocker arm bolts till hand tight.
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. Another way to say it is hand rotate the engine in its normal direction of rotation until both valves are closed. You are on the compression cycle for that cylinder. (At this position the valve springs are at their least amount of tension making the job a little easier to do.) 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. Off lobe lift means rotate the crank till both valvesprings come UP on cylinder 1, meaning the valves are closed. If you rotate too far, one valvespring will start to go down ( valve opening) ; simply rotate again till you see them both come up. Use a 24mm socket on the crank with a 3" extension and a breaker bar for rotating.
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).
Per GM SI website:
1) Install the rocker arms and bolts. Meaning put in the rocker arm bolts till hand tight.
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. Another way to say it is hand rotate the engine in its normal direction of rotation until both valves are closed. You are on the compression cycle for that cylinder. (At this position the valve springs are at their least amount of tension making the job a little easier to do.) 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. Off lobe lift means rotate the crank till both valvesprings come UP on cylinder 1, meaning the valves are closed. If you rotate too far, one valvespring will start to go down ( valve opening) ; simply rotate again till you see them both come up. Use a 24mm socket on the crank with a 3" extension and a breaker bar for rotating.
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).