Timing belt broke on car. Had to replace head. Put everthing back on retimed it and it won't start. Any ideas? Plugs and wires working fine, injectors ok. What else is there?

Did you undo the battery when you serviced it?
This would clear the computer and allow it to relearn the cam shaft position and crank position?

Reconnect the the cam sensor ? instal it with the plug pointing down?
Double check that and the plug going into the coil.
make sure you hear the fuel pump cycle on then off when you turn the key on without cranking. make sure fuel is reaching the injector manifolds. (Unscrew the valve stem.) it may have air trapped in manifold and lines and would take a while to purge through the injectors if at all.

Yep, disconnected the battery. I'll try the fuel purging. Fuel pump kicks on. I have another cam sensor i'll try it.

Thanks!

Yep, disconnected the battery. I'll try the fuel purging. Fuel pump kicks on. I have another cam sensor i'll try it.

Thanks!
Once you verify fuel supply you might want to see if you get spark.
I usually pull the #1 plug off the coil and put a wire from somthing metal close to the coil near >1/4" from the metal tip. then crank it to see if theres spark. If not then its in the coil, PCM or one of the sensors not working properly.

I'm almost positive that it is timed right. But could the reason it not start is because it is a little out of time?

One more question. How many sensors are there? Coil, egr, tps, cam, purge, o2,. What elese is there. Thinking it might be a sensor. Also do the belts for the alternator and power steering need to be on for the car to start? I wouldn't think so, but you never know!

Replaced cam sensor still no luck. :confused:

when you replaced your timing belt are you sure the engine was on TDC on the compression stroke and not the exaust stroke...you would be out of time by 160 degrees...

I double check the timing. Thanks!

I think it might be 180 out. Because everthing else is ok and I think it is starting on the exhast phase instead of the intake.

OOPS...you're right with the 180...have no idea why I typed 160...but any way it is easy to get the two strokes mixed up...recheck it...

It's ok! I now have another problem: Took belt off to retime and the first cam only turns 180 in either direction before not wanting to turn at all. Did I bend the exhast valves? Also piston 1 and four do not move. 2 and three move up and down perfectly. What could it be? Busted rod, crank, piston?

how hard is it to replace exhaust valves?

how hard is it to replace exhaust valves?
OK, I'm confused...you say 2 of your pistons move up and down...are you rotating your crank 360 degrees or just moving the crank to see if they move a little...you also stated you already replaced the head...are you questioning the condition of the exaust valves in the replacement head or do you think you did damage to the replaced heads' valves once you placed this head on the engine...let me know and I'll try to figure this one out...along with some other people I hope...

Ok, heres whats going on. I took the old head because the intake valves were bent. Bought a new head and put it on. Aligned all timing marks on cams and crank. Started car, wouldn't start just kept turning over. Look at timing again, took off belt and went to aling cams. Could turn cam 2 all the way around to time it. Ok so far! Went to align cam 1 and could only turn it about 160 to 180 degrees in either direction. I think the reason it won't turn any more is because piston 1 and 4 won't go down causing the valves to hit the top of the piston heads. Makes sense right? I am going to take the head off again and find if that is true.

Anyways, I think I got that figured out. Now what would make pistons 1 and 4 just seize up and not move? broken connecting rod is all I can think of.

Hope this helps!!

Also, moving crank 360 degrees.