A833 + clutch question : 68 318 engine
there is a difference between a pressure plate and a big chevy flexplate and a powerglide car does not have a flywheel. pressure plates-clutch cars-are balanced neutral at the manufacturer. when it is bolted to a flywheel there can be some slight error. so when we balance an assembly we suggest a pressure plate is with it and we spray paint a line on the pieces. most mere mortals do not rebalance when a clutch assembly is replaced-and do not need to. try to buy a replacement pressure plate made in USA
So I have retread this nightmare of a paragraph. You seem to have balanced a crank. So let's take this apart. Maybe someone will learn something, and will save some money or broken parts.
If you take a flywheel, and put it on a mandrel so you can spin it. All by itself. The manufacturer called it neutral balance. I can tell you, I have NEVER seen a FW that is less than 20 grams out. 20, that is crap, especially considering you are PAYING for a balanced assembly. So you screw with it until it is now about 2 grams out. No crank will ever notice 2 grams.
Now, bolt your "internally balanced" pressure plate on the FW and watch what happens. You'll be lucky if you are less than the original 20 grams out, and it won't be out in the same spot. It NEVER is. So you either have to make more holes in the heavy side of the FW, or add weight to the light side of the pressure plate.
Now go get another pressure plate, from the same company, even from the same lot. I GD promise you the balance job will be off, AGAIN.
Once you get through all that, bolt all that crap back on the crank. It will AGAIN, be out of balance. Every time.
The correct procedure is to get both ends of the crank close, put the FW on and check it. If it's close, you can bolt the pressure plate on and see where you are. You can rotate the pressure plate to get it as close as you can.
But no matter what, if it's done correctly, you will have a balance assembly. And if you PAID for it and didn't get it, that's on you.
So marcohotrod, you are WRONG.