After cam install SR wont start...PLEASE HELP!

[gerbort]

I chipped a lobe on my intake cam and installed a new one. Now my car won't start. It cranks, i have fuel, and i have spark. I set the timing according to phase2motortrend and according to the FSM and still nothing. I set it to TDC, line the two links on the chain with the two dots on the cam gears and take the CAS and set it according to the FSM. I think its a timing issue but i can't figure out what i am doing wrong. I have searched and still come up with nothing. Can someone please point me in the right direction. I NEED SOME HELP PLEASE!!!

[RMiller]

Verify you are at TDC by removing a spark plug and sticking a pencil or something down to the piston. Rotate the motor until the pencil is at its highest point. If there's fuel and spark, there's going to be combustion unless your valves are open.

[gerbort]

I did....i stuck a long screwdriver in the first cylinder...it's at TDC and the cams are lined up correctly with the timing chain

[RMiller]

Hmm....you must not have either fuel or spark. Or your valves aren't there.Double check that you have fuel and spark. And if you're sure you have both, then pop the valve cover and look to make sure when you're at TDC the cam alignment makes sense relative to piston 1.

My car wouldn't start once and it was because my ROM chip was burned out and I wasn't getting spark.

[gerbort]

Cam and chain are lined up right at TDC. I made sure i had fuel and spark and I do. I set the CAS according to the FSM. Kinda stuck on where to go now...please help

[yellow_jacket]

Just because the piston is at TDC does not mean you are on the compression stroke. Try rotating the CAS 180 degrees.

[RMiller]

Good point.

[FAST-DATSUN]

cannot use the link after engine started once, must use TDC and sprocket position.....

[gerbort]

Just because the piston is at TDC does not mean you are on the compression stroke. Try rotating the CAS 180 degrees.

should i turn the gear on the cas 180 degrees from where the FSM tells you to set it and then insert it or

should i set it according to the FSM insert it and then turn the cas 180 degrees?

Also should i just line up the cam sprockets with the intake cam at about 10 oclock and the exhaust cam at about 12 oclock with cylinder #1 at tdc and set the cas according to the FSM and then insert it?

Tell you the truth i'm confused on what to turn 180 degrees....i get people telling me to turn the crank 180 and some that say turn the cas....someone please elaborate.

[yellow_jacket]

The easiest way I can think of explaining this to you is this:

Take the valve cover off, set the crankshaft pulley to tdc. You will notice that the exhaust valve for number 1 either just closed, or will be opening on this stroke. If it will be opening(combustion stroke) then set the CAS to cylinder number one. If the exhaust valve just closed, set it to cylinder number 4.

If you can't figure it out that way, Set the crank to tdc. remove the CAS and rotate it 180 from where it is now. Reinstall and fire the car up.

[GTS4-R]

be sure ur cam timing is properly set then use the CAS method with the yellow dots.

here is how to VERIFY that your cams are properly aligned.

1) set engine to TDC compression (cam lobes facing away from each other)

2) look at exhaust cam. find the DOT stamped on the EX cam gear. the tooth that corresponds to that dot that is tooth #1.

3) start counting teeth clockwise from that tooth to the top surface of the head (valve cover gasket sealing surface)

4) the top of the head should be inbetween tooth #8 and tooth #9 (remember the tooth at the dot IS #1)

5) leave motor at TDC. find Dot on Intake Cam Gear. this is #1 tooth again.

6) count teeth COUTER CLOCKWISE to top surgace of head.

7) Top surface of head should be almost exactly tooth #5.

8) as a verification after you have done all that count the # of PINS in the chain between the 2 dots ont he cam gears. there should be 20 PINS.