setting timing on a 2.2 ecotec HELP

[lake31c]

any 1 ever done 1 of these? being a pain in my but please help

[Classicrocjunkie]

set the engine to TDC compression, spin the crank by using the bolt that hold the pulley on. Since the spark plugs are out you can use a long screw driver or something like it to stick in the #1 spark plug hole, DO NOT USE SOMETHING THAT CAN FIT ALL THE WAY IN THE CYLINDER!!! Now with the screwdriver in the spark plug hole slowly turn over the engine until the screw driver is at its highest point, since it’s resting on the piston top the piston will push it up. When the screw driver is at its highest point look at the marks on the cam gears.

look at the chain itself, there will be 3 colored links, from what I've heard the color is different from year to year but there are 3 colored links. You need to line up the 3 colored links with the marks on the cam gears and crank gear and since the chain is loose you can freely rotate it to the position to make the markings line up. There will be a white dot on one of the teeth on the crank, one link to that tooth, one colored link to the triangle on the exhaust cam and the 3rd colored link to the diamond on the intake cam. You will most likely have to rotate one or both of the cams slightly to get the marks to line up. Once all three colored links are lined up with the 3 timing marks bump the crank just a little bit to get all of the slack from the chain to the tensioner side of the engine. Reinstall the 10MM that holds the bottom of the tensioner chain guide then put the top tensioner bolt back in the big 1 1/4 inch one. Make sure all the marks still lined up right, the cams have a tendency to jump, it helps a ton to have an extra set of hands holding the cams in place while you mess with the chain (a big pair of vise grips will work, or a 7/8� wrench I think it was). Once the chain guides are back on and the tensioner bolt is in and tight, check again to make sure all the timing marks line up. Then spin the engine over by hand a few times to make sure nothing is hitting. When you spin the engine over the timing marks WILL NOT line up again after spinning the engine over, the number of teeth on gears and links on the chain it doesn’t line up anymore after you spin the engine, mathematically it will eventually line up again but your going to be there a LONG time spinning the engine by hand before it all lines up again. If nothing is hitting then you’re done.

[lake31c]

well that helped me on the marks not lining up! got it together now has a bad miss. #1 & 4 are firing somewhat but 2&3 are not at all! any idea on how 2 set the cams correctly?????? or other ideas

[lake31c]

Originally Posted by lake31c

well that helped me on the marks not lining up! got it together now has a bad miss. #1 & 4 are firing somewhat but 2&3 are not at all! any idea on how 2 set the cams correctly?????? or other ideas

any 1 have any info on setting the cams????

[J-Ri]

What did you replace and what was the problem before?

Since it's missing on two cylinders, it's most likely not anything to do with either cam, assuming you got the chain on right. One being off would affect all the cylinders.

How are you determining that 2/3 are not firing?

[lake31c]

Originally Posted by J-Ri

What did you replace and what was the problem before?

Since it's missing on two cylinders, it's most likely not anything to do with either cam, assuming you got the chain on right. One being off would affect all the cylinders.

How are you determining that 2/3 are not firing?

check the timing again all the marks are on. pulled the coil pack up i got very lil spsrk on #1&4 none on #2*&3.

[wafrederick]

Pull the #2 and #3 spark plugs and inspect them.Some GM engines mainly the newer Saturn engines do have Bosch plugs from the factory with the GM logo on them.I have seen this with a v6 out of a Saturn that had Bosch plugs from the factory.

[lesterl]

Bad ignition module? Bad crank sensor?