You need to reposition the No. 1 piston to TDC (top dead center). You can do this by removing the spark plug from the No.1 piston and feel for compression as the crankshaft is turned. Or, you can rotate the crankshaft by hand with a large breaker bar and socket and align the the crankshaft vibration damper scribe mark to the TDC mark on the timing chain cover, while the distributor rotor points to the distributor cap terminal that fires the number 1 cylinder.
The timing is not ajustable on that engine. It is controlled by the computer. If you have not removed the distributor / That is if it's a V-6 engine then there's no reason to worry about are to full with the timing. If you have moved the distributor the you MUST have an engine scanner to put the timing back were it belongs. The V-8 engines don't have a distributor. A timing light is the thing of the pass. There no longer used.
You must have an engine scanner to set the timing correctly.
That requires an OBDII engine scanner to do that. The ignition timing is controlled by the computor. If you have not moved are removed the distributor then there's no reason to fool with the timing.
Distributor was removed and put back in the wrong position throwing the engines timing off by 180 degrees.
That is automatically controlled by the ECM. Yes that is true, but if you have removed are moved the distributor then it requires an engine scanner to set the timing. and then the computer will take over from there.
To set the timing on a Toyota 22R engine find the distributor. The engine will have marks at which the distributor can be set. The OEM setting for a 22R engine is 5 degrees.
A 1979 Chevrolet pickup does not have a timing belt, it has a timing chain. The chain will last the life of the engine and is normally replaced during an engine overhaul.
First place there is no need to set the timing if the distributor has not been moved. And there is no wire to unhook.The ignition timing is controled by the ECM / engine control module. If the timing is off you will have a check engine light on. If the light is not on, then the timing is correct. No need to bother, The computer is taking care of it.You have to have a OBD II engine scanner to set the timing.
Timing is set by the PCM and is not adjustable. The distributor should always be reinstalled in the same position it was removed from.
6 degrees before tdc with distributor vacuum line removed and plugged
You can not set the timing with a timing light on that year engine. The timing is controlled by the PCM./ Power train control module. You must have an oBD2 engine scanner to set the timing. If the timing is off then the check engine light will be on.If you have not removed the distributor are moved it around for any reason then the engine timing is correct already. No need to adjust it. Computer does it.
Look at this: http://autorepair.about.com/library/firing_orders/bl-fo-5830.htm