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Originally Posted by olddog
There are three possibilities:
The engine is zero ballanced
The engine is 28 oz off set ballanced
The engine is 50 oz off set ballanced
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It is a 28 oz externally balanced per the motor company.
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I suspect the fellow is planning to use different ballance sets on the front and back of the engine. Like mixing a 28 oz on the front and a 50 oz on the back or some other combination. Anyhow that is the only way I can come up with the number of combinations that you said.
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As I understand it he says that both the balancer and the flexplate are 28 oz.
That's why I put this question to the masses here.
It did indeed dyno smooth.
Yet, in my car it's very rough.
So, from what I can gather being posted here if the balancer and the flexpate match the crankshaft there really isn't any "combinations" that he can try?
Correct?
Such as 28.5 oz flexplate as opposed to 28oz EXACTLY?
The reason why I ask is I'm wondering if the guy is just trying to run up my bill or something.
He also stated he was going to try these "combonations" WITHOUT taking the transmission out.
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Both front and back need to be the same type of ballance.
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That's what I thought all along.
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I am assuming that no manufacturer would be stupid engough to actually ballance an engine with a 28 oz on the front and a 50 oz on the back or some other combination.
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Yeah, I don't think this is the case at all.
This is a pretty big well known crate motor company.
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If after trying a zero, then a 28 oz, and finally a 50 oz, (same on front and back each time), and it still does not ballance out with any combination, only then would I suspect something stupid has happened.
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Just so I know with 100% accuracy here. You are saying that it has to be 28 oz EXACTLY on both the front and rear?
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However before that I would question that all the plug wires are in the propper order and that the engine is running correctly.
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Thanks for the heads up and I will have him re-check this but I have had myself and a few sets of eyes on this motor and nobody has come up with this one.