are balance shafts negative at low RPM?

[STARION]

Bad wording, but anyways, what I am wondering is are the balance shafts ineffective the lower the RPM? I am pretty sure that they ought to cancel vibration at any RPM. I ask because I just finished my engine swap and the Motor @ 500 RPM (idle), (yeah I know, it should be 750) shakes the car like crazy. Say that I open the door for example, the door will be shaking (very visible). Then I rev, and it seems to go away, The car is setting a check engine light which I will get to, but I was wondering if anyone knows about the balance shafts first. I just did the belts and followed the Vfaq, but think it could have been wrong here:

"NOTE that there is an easier way to do this. Simply rotate the mark on the oil pump sprocket until it is pointing straight up, and let it go. If the sprocket rotates towards (counterclockwise) the timing mark on the engine, the oil pump sprocket is aligned correctly. If it rotates away (clockwise) from the mark, spin the sprocket a full turn and test again, and it should properly rotate towards the mark now. Now line the mark on the sprocket back up with the mark on the engine. This avoids having to remove the rear access bolt entirely. "

I followed this exactly and set it according to them and all other timing marks were dead on, but is this accurate? I ask because I am positive that this could have been the only error, even though it did in fact rotate towards the mark.

help.
thanks,
Kent

 

[turbolover2]

It sounds like one of two things. Either one of the baalnce shafts isn't properly lined up, or the belt itself isn't properly lined up. The best way to check the rear shaft is with a screwdriver. On the back of the block, above the drivers side axles, is a 14mm bolt. Remove it. With all the timing marks lined up, and the dowel pins on the cams at 12 o'clock, you should be able to stick a screwdriver into that hole a few inches. If it only goes in a tiny bit, the balance shaft is 180* out of phase.

 

[sean]

does it shake it you hold it at 750? i'm thinking that it's just from having such a low idle, that'll cause just about any car to shake. especially 4 cyls.

 

[STARION]

yeah man, thats why i mentioned that about the idle, i thought somone may pick up on that. but i havent been able to check since the car is back apart for another couple of days.