so my SR hasn't ran in over a month, and the last thing i did to it before it ran was try to set the timing. after i did that, it wouldn't start at all. the engine turns over, but it doesn't crank, if you get what i'm saying. so today i was working on it, and i noticed that whenever i can get the cam sprockets lined up with the links on the chain and with the cam lobes facing outwards (see pic below for example), the #1 piston is never at TDC. i lined it up about three or four times, and the crank pulley was always in the same spot. so for some odd reason the chain was knocked out of place. but what i need to know is if i can line up everything in the head (cams, sprockets), remove the chain, and then set the #1 piston at TDC. will i be able to do this, or will i just be digging myself a deeper hole? i've also get a video if you didn't understand how its turning over.
you cant go by the links on the chain. you line them up once and after that - theyre not lined up anymore.
your best bet is to line up all the marks on all of the gears and then set the chain again. dont forget to check the position of the crank pulley and distributor rotor to make sure its pointing at the #1 cylinder.
1. Set crank to top dead center (TDC)…2nd mark from the left on the pulley. With the #1 cam lobes facing away from each other.
2. Remove tensioner.
3. Look at the front of the exhaust cam. You will see that there is a pin that locks the cam to the gear. You will also see a dot stamped into the cam gear at approximately 1 O’clock. This dot is used to mark tooth #1.
4. Starting from exhaust cam tooth #1 count (clockwise) the number of teeth until the top surface of the head. The head should be between 8 and 9 teeth.
5. Adjust cam position as necessary.
6. Find the DOT on intake cam. Once again this is tooth #1. Count COUNTER-clockwise to the top of the head. You should find that the top of the head should be between 4½ and 5½ teeth. Adjust as necessary.
7. Count the number of chain pins between the 2 dots across the top. You should count 20 pins.
8. Install tensioner. Rotate engine 2 full turns and slowly bring it back to TDC ( #1 lobes out)
9. Re-inspect cam position as listed above. Repeat if necessary.
10. Install CAS according to FSM procedure.
just an update, i finished resetting the timing chain and the timing is all correct. but it is still doing the same thing as in the video. i have spark, fuel, and i'm 100% sure the timing is right, so what else could it be? i've checked the CAS to make sure its working and its fine. i've also read that you are suppose to unplug the TPS to put the ECU in "timing mode", can anyone verify this?
Linear Mode
