slow.8

i finally got the heads and valley cover on without breaking anything. now for the pushrods and rockers. ive read in my haynes manual that the #1 piston needs to be at TDC to torque in. 1345 ex. 1278. rotate 360 degrees torque in.2678 ex. 3456. i cant afford a piston stop and degree wheel. so im going to have employ the screwdriver method. ive never done this, so how do i know when #1's at TDC using the screwdriver.does it need to be on the compression stroke,if so how can i tell that, and whats the effect of rotating the crankshaft 360 degrees...

replies appreciated

slow.8

i estimated it as best i could, and got everything torqued down. should get the rest of it together tomorrow. then find out if it starts...holds together.

Mangled03gmc

iTrader: (95)

Its pretty simple to just look and see TDC. Rotate the engine over untill you see number 1 coming up. once it is up, move it back and forth, you will be able to tell where TDC is.. It is going to stop, then start back down.. Find the happy spot..

slow.8

say you`re off a cunthair either way, a big deal?

Gadgetized

iTrader: (9)

I don't use the TDC method. I use the adjust exh when the int is closing, and adjust the int when the exh is opening. That seems to be the easiest for me.

Slammed96

iTrader: (5)

maybe Im just ignorant...but I thought on LS engines, you just tightened down everything and you were good to go. No adjustment needed like on the older SBC engines.

Mangled03gmc

iTrader: (95)

^^^ Correct.. I did not use this method either, as they are self adjusting lifters.. Tq them to 22 ft lb and roll with it.. I did however crank the engine over some, then go back over things..

CashDudeHomie

iTrader: (5)

You just don't want to tighten a rocker down when the pushrod is all the way up because it makes it easier to rip the threads out. I have done it before though and nothing bad happened.

slow.8

thanks guys

Atomic

iTrader: (42)

Yea tighten them all, rotate crank 90 degrees then go back over them