timing a 1ggte problem

[celicapain]

Howdy helpfull toyota peoples
Ive finally gotten around to doing the timing properly on my 1g. pulled of the intercooler and radiator, hooked up the light gun and started her up.
All good except my timing mark is out by 180dg. This is running the gun off No1 cylinder H/T lead. my timing is pretty close anyway, so it runs alright, but i really want to set it up properly.
anyone got any ideas?

[BLK1g-gte]

You sure you are on TDC???? You can always undo the spark plug and slowly turn the engine with a screw driver in place of the spark plug against the top of the piston. Get someone to spin the crank clockwise till just before the piston starts to drop back down again. Hence TDC... Now look at your crank timing marks and your Cam timing marks. They should all line up??? Good luck... I am in the process of redoing my cam timing as i missed it by one tooth....

[celicapain]

pretty sure.
I did the belt a while ago when it was still running the ecu and it ran fine after that so the cam timing shoudnt be an issue.
When I put the new dizzy in i the used the screwdiver method to find TDC on 1 to line up the dizzy. Actually fired first time i tried it, though it was advanced as buggery and backfiring. i just retarded it so it was running ok, which brings me up to where i am now.
ive tried pulling leads off as its running but i get a definate miss with each one i pull off so i know the timings roughly right, and if the timing was out by 180dg it shouldnt even start.

tough luck with the cam timing, i hope you picked it up before you put the engine back in

[celicapain]

what i mean is when the gun lights up instead of the marks on the crankpully being close to the timing mark they are at 180dg.
am i just tired and stupid and missing something obvious or is something wierd goin on?

[BLK1g-gte]

Its not a problem... its 1 hour job...done heaps before... In that case all sounds good...providing your crank is at 0 degrees at TDC and cam timing lines up you should be all good. But i would be checking the cam timing its very easy to miss by one tooth or 5 degrees roughly in timing either way you may have missed it by.
If its all ok then just set it to 10 degrees with te1 E1 shorted and that should be it...there is nothing more to it....

[BLK1g-gte]

Sounds like cam timing is out...

[The Real Roadrunner]

it wont run if the timing is at bdc.
could be a stuffed harmo, wrong lead or a myriad of things.
ill think of some stuff and get back to you.

cheers
linden

[celicapain]

gratis.
nah cam timing is ok, i probally triple checked it all twice! its running smooth first turn of the key and revving clean as buggery. i reckon the timing is actually pretty close to the money, but i just want to make sure.
I cant short E1 cause i yanked it and all of its friends out
Im running a VK(bosch electric) dizzy, and GRA carb, but none of that should affect the crank pulley.

[TA-022]

i dont think you can light these things up properly to do the timing unless you do the bridge in the diagnostic connector?

maybe check the wiring diagram and just find the T1 E1 wires in the loom and put in a conector that could be used as a bridge when needed?

otherwise can the harmos go on 180degrees out?

lastly ive heard of the rubber in harmos going and the outside ring spinning out of alignment with the centre .. hence timing marks get thrown out?

[celicapain]

i no longer have an ODB port, i deep sixed the loom/throttle body/ecu and dizzy.
may this be the cause of my drama?
id be surprised if its slipped on the rubber as its perfectly 180dg out, maybe if it was a little bit out but now perfectly reversed.

[Kyosho]

How do you know it's out 180 degrees?

Have you climbed under the car and found it whilst running?

I couldn't for the life of me see the timing mark when using the gun, but my mechanic could

Put some whiteout on the mark, and then try again.