G13 Valve & ignition timing

[Damo]

I'm kinda scratching my head tonight, trying to figure out what I fawked up.

Long story short, got the head reco'd & am putting it all back together. Was running yesterday but pretty rough. Then the water pump decided to start leaking (has been fine until I pulled the motor apart ). So today, new water pump, put things back together after having another look at the FSM but now it wont start. It's backfarting through the exhaust, almost like I have the dizzy out 180deg., but it's all as per the manual.

This is what I did:
1) Undo all the valve adjusting nuts
2) Line up mark on camshaft pulley as per manual (it's a hole with a little verticle dash above and below it, line that up with the centre mark on the inside belt cover)
3) Set crank to TDC. There is a mark on the pulley, line that up at the top. I noticed that I could see the "T" marked on the flywheel in the timing window too.
4) Fit timing belt
6) Remove dizzy & reinstall so that the rotor points to where the passenger side cap clip clips onto
5) Adjust valve clearances on 3 & 4 inlet, 2 & 4 exhaust.
6) Rotate crank 180 deg., adjust valve clearances on 1 & 2 inlet, 1 & 3 exhaust

As far as I can tell that's how the manual is telling me to do it, and i'm getting farting out the exhaust. What the heck am I doing wrong???

[lay80n]

Have you got a timing light, to check if you got the timing even close???
Manually spin the motor over to No 1 TDC of compression stroke, and see where the rotor button is pointed, then see where is should be pointed on the dizzy cap to align with No 1 cylinder. After you set the Cam timing, did you spin the motor over 720 deg and recheck the timing?????
Layto....

[Damo]

Have you got a timing light, to check if you got the timing even close???

It wont start at the moment so i'm pretty sure something is fairly wrong

Manually spin the motor over to No 1 TDC of compression stroke

At this point the inlet valve should have just closed yeah?

and see where the rotor button is pointed, then see where is should be pointed on the dizzy cap to align with No 1 cylinder.

Yep.

After you set the Cam timing, did you spin the motor over 720 deg and recheck the timing?????
Layto....

Nope, what is that supposed to do?

[Damo]

After double checking everything again I guessed that it must be the dizzy. Sure enough, I played with it a little and it ended up being a tooth or two off.

[lay80n]

In answer to your question. whenever you change timing (cam) you should spin the motor by hand a full cam revolution(720 deg at the crank) and re-check timing. This has two benefits, if your timing is off, it allows you to find out the easy way, without bouncing valves into pistons, and 2-it allows you to re-check the cam timing after all is tensioned in the engine (as in it has wound over etc and all potential slack is out of the belt etc). After spining the motor the timing should still line up, and final tension of the belt can be done (if manual tenisoner). just a good idea, as some cars can seem okay, but be one tooth off when spun. And it saves a costly, KLUNK when you fawk up . Good to hear its going now.

Layto....