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Posted on Jan 02, 2017
make sure you have it on number 1 cyl top dead center, cause you can actually have it on number 6 cyl instead of number 1... seen it many times, same as on 4 cyl inline... its that inline thing going on...
Posted on Aug 06, 2009
SOURCE: when setting the ignition timing
The engine timing markers down on the harmonic balancer/crankshaft pulley should be aligned with the timing indicator on the engine block to "0" degrees when the engine is in the compression stroke for the #1 cylinder, and this is TDC or "Top Dead Center". When something blows out of the spark plug hole that only means that the piston is coming up on TDC, but the crankshaft will still have to be turned until the timing markers are at "0" degrees. You should be sure that you do know how to properly align the timing marks to "0" degrees, and the timing marks must be set at "0" degrees before the distributor can successfully be installed.
Be certain that the timing marks are set at "0" degrees and on the compression stroke for the #1 cylinder, or the timing will be 180 degrees off when you install the distributor. This has to be precise and guessing will not get the distributor properly clocked in so that the ignition timing can be correctly set.
Once you are certain that the timing is set to "0" degrees "TDC", then mark the distributor housing where the #1 position on the distributor cap will be when the cap is installed on the distributor, so that the distributor housing shows a reference mark where the #1 position is, then the distributor should be installed so that the ignition rotor is pointing directly at the #1 position on the distributor housing, or just before the #1 position mark according to the rotation of the ignition rotor. The distributor should be able to turn and point the ignition rotor on either side of the #1 position mark to provide plenty of timing advance or ****** so that the ignition timing can properly be adjusted to specifications after the engine has been started.
Be sure that you follow the proper timing procedure for that vehicle and remove any timing spout connectors that are described in the set timing procedures
Also, be certain that you are actually using the #1 cylinder to set the engine to TDC and to actually time the engine with a timing light. Here is a firing order diagram that should also help to assist you. Let me know if you require any further assistance.
Posted on Jun 17, 2010
SOURCE: i have a 2001 chevy
misfires can be caused by faulty ignition components, but they can also stem from other components. Such as faulty injectors, or improperly timed or unseated valves. Sounds like you have touched on all of your ignition suspects.
Are there any codes present other than P0304, P0305 and P0306? If so they should help guide you in the right direction. If not, You might want to make sure your valves are seating and if so, go ahead and swap an injector from a misfiring hole with a good one from a hole with no misfire. (like switch #2 and #4 injectors for example) if the misfire moves to cyl 2, you know the injector is at fault.
Posted on Oct 02, 2010
hawkie74542, As you are standing in front of the vehicle looking at the engine the spark plug on the right in the front is the number one cylinder. Remove the spark plug. On your crank shaft pulley find the timing mark and mark it with some whiteout or anything else that will show up well. Rotate the crankshaft clockwise until the mark lines up with zero on the timing gauge on the engine. When you have done this, with a long screwdriver check the hole where the number one spark plug was. You should not be able to put the screw driver in too far as the top of the piston should be right there at the top of the cylinder. This will get you to top dead center. The rotor should be pointing directly at the number one spark plug. Tighten the distributor down but not all the way as you will need to turn the distributor for the final timing. Replace the spark plug and wire and with a timing light finish the timing procedure. Good luck with this.
Posted on Jun 05, 2011
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