please answer this diffecult question!
please answer this diffecult question! i just bought a aluminum flywheel fedanza and it says that the flywheel must be balanced to match the original before the installation .what does that mean?
Originally Posted by Houston999
i just bought a aluminum flywheel fedanza and it says that the flywheel must be balanced to match the original before the installation .what does that mean?
If you look at it like this, the stock flywheel is keyed to fit one way, if the heavy or light area on the stock flywheel is at 12 o clock position, and the new flywheel has the same spot at 6 oclock, you're going to get a vibration that wasn't there before (and that could depending on the severity of the imbalance) damage the engine
Think of it like a wheel, if the wheel is not balanced it's going to vibrate driving down the road, same thing for the flywheel
They balance the flywheel by either removing or adding material to the outer diameter much like they add weight to a wheel to balance it
Originally Posted by 2K2WS6TA
It simply means the heavy/light spot on the new flywheel should be in the same position as it is on the stock flywheel.
If you look at it like this, the stock flywheel is keyed to fit one way, if the heavy or light area on the stock flywheel is at 12 o clock position, and the new flywheel has the same spot at 6 oclock, you're going to get a vibration that wasn't there before (and that could depending on the severity of the imbalance) damage the engine
Think of it like a wheel, if the wheel is not balanced it's going to vibrate driving down the road, same thing for the flywheel
They balance the flywheel by either removing or adding material to the outer diameter much like they add weight to a wheel to balance it
If you look at it like this, the stock flywheel is keyed to fit one way, if the heavy or light area on the stock flywheel is at 12 o clock position, and the new flywheel has the same spot at 6 oclock, you're going to get a vibration that wasn't there before (and that could depending on the severity of the imbalance) damage the engine
Think of it like a wheel, if the wheel is not balanced it's going to vibrate driving down the road, same thing for the flywheel
They balance the flywheel by either removing or adding material to the outer diameter much like they add weight to a wheel to balance it
I read a post somewhere about a guy with a mustang whose flywheel came off, went through the bellhousing, through the tranny tunnel, through the dashboard, and through the windshield.....
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To answer the question... LS1 engines are internally neutral balanced and any LS1 flywheel/pressure plate assembly needs to be neutral balanced within 6 grams. Any competent machine shop can accomplish this. Once neutral balanced, installation orientation with regard to the crank doesn't matter.
LT1 enginges are externally balanced. The flywheel/pressure plate assembly should be balanced to match the old assembly. From what I've been told the crank has locating dowels that prevent the flywheel from being assembled in the wrong position.
LT1 enginges are externally balanced. The flywheel/pressure plate assembly should be balanced to match the old assembly. From what I've been told the crank has locating dowels that prevent the flywheel from being assembled in the wrong position.
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