When my car starts it backfires and pops and misses and has a rough idle. I dont know where i went wrong. Still stock heads. I followed the firing order put everything back in the same place. Does anybody have ideas?

 

Guarantee you crossed a wire or missed proper location of the distributer to cam.
first!

 

I didnt have to take a distributor off. And i had cyl. 3, 5 mixed up i fixed them.and the problem.is still there all other wires are correct. And now im stumped.

 

what procedure did you use to re-adjust the valves??? im putting my bet there.....

 

Procedure? Lol.

 

ohhhh boy...........ok when u put the rockers back on how did you adjust them? you didn't just tighten them down did you? lol

 

I tightened them.just until.the rocker quit sliding around... lol.

 

problem solved lol ok do this pull both covers and do them this way........follow this procedure ONE cylinder at a time......

1. Rotate engine BY HAND untill the exhaust valve BEGINS to open...when it does back off the intake valve nut till there is play in the rocker then tighten the nut till the play goes away (0 lash) then tighten the nut another 1/2 turn.........

2. repeat same procedure for exhaust valve adjusting but adjust it when the INTAKE valve is begining to return from full lift.....

 

By hand? Do you mean put a socket on the crank?

 

yes
turn only clockwise

 

Alright thanks and i will let yall know

 

You're not stumped, you're a moron using the wrong procedure from asking about the wrong engine in the wrong forum:

https://ls1tech.com/forums/generatio...rm-torque.html

Effed up as a football bat.

 

You cant just tighten rockers untill they quit moving!Go to YouTube and look up rocker arm adjustment
Hope you haven't bitch slapped any valves with pistons... Do your home work before large projects, and I hope this is your only mistake in the repair........

 

LOL. Nah, he asked in here too: https://ls1tech.com/forums/lt1-lt4-m...que-specs.html

Sadly, he didn't even know how to ask the right question.

Anyhow, OP, do it the way quik95lt1 said and hope that you haven't already done major engine damage.

 

Well backfiring is fixed. Spark plug wire was mixed up. Havent had a chance to adjust the valves. Corporates in town and im at work.

 

Lol,
I strongly suggest not running that motor much without properly adjusting the valves, it will be catastrophic if the geometry or adjustment is wrong

 

Appreciate it bro. Car been sitting at my work been driving the fiancee' corolla

 

Rockers ? here is the biggest question did you torque the head down the correct ft.lbs and the proper pattern ? If your struggling with rockers you have worried about the head .

 

Alright i did exactly as quik95lt1 said and its good. Its running i have a slight exhaust leak but its from the air tube on the driver side header (emission legal headers) time to bend my arm 3 different ways now.

 

At first it was...

And then...

That poor car.