teddyca

iTrader: (37)

Heard the job is not bad at all. Little brother might have a few bent pushrods so we are going to replace them. Looking for torque specs and steps in replacing. Wondering if after the valvecovers are off, just loosen the rockers and replace one at a time or do the rockers come off? Thanks for any help.
Car is a 2000 Camero with a LS1

teddyca

iTrader: (37)

Just to update my own post and yes searching is your friend
"The rocker bolts are only 22 ft/lb,"

Viper

iTrader: (6)

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).

radkon

iTrader: (2)

Check out the write up on www.ls1howto.com

MrDude_1

iTrader: (4)

heres a tip ive found out the hard way.

get a SIX POINT 8mm 3/8" drive socket.

then, go buy a second one.

eventually, the first one will break. dont use a 12 point to break loose the rocker bolts.

teddyca

iTrader: (37)

Thanks guys those are awesome writeups. Well Monday we did the pass side to find 2 bent rods. Jumped on the drivers side last night and my brother told me that one of the rods snapped in half and is in the "valley" Now I know my bro has no idea what he is talking about, so I assume thats what the mechanic told him. How the hell could it fall in. Collapsed lifter????

viewsonic

you need to buy better sockets

MrDude_1

iTrader: (4)

im not a shop, so unless im hunting down the snap-on truck, im stuck with craftsman or kolbalt.
they dont always break right away.. you may have to do a few motors, or it may go after the first bank.. but when they do, you'll be wishing you bought a spare.

viewsonic

I hear yah! Those bolts really are tight for thier size!

But I always say, buy 1 good tool instead os 2 shitty ones.

I think craftsman is decent stuff... and if it breaks you should be able to get your money back.

shudog

iTrader: (3)

The mechanic or your brother probably means that the pushrod is broken and only the top half came out.... the bottom portion is still down the hole sitting on the lifter... a pen magnet should retrieve it if that's the case.