How to rebalance flywheel

pazur · Jan 4, 2008

I have 50 oz flywheel for late 302w, and want to make it 28 oz to fit early engine. Can someone tell where specifically the 22 oz should be grinded off?

65fastbackresto · Jan 4, 2008

Man that sounds risky to me

Just buy one, mine was like $30 bucks.

dablack · Jan 4, 2008

where did you get one for $30!

65fastbackresto · Jan 4, 2008

Advance Auto Parts

The guy owed me a favor, he MAY have knocked some off the price, he never said, and I never asked.

How much should it cost? I ask cause I thought the guy got to me on another deal.....maybe not?

BarnStang · Jan 4, 2008

ANy reputable machine shop can rebalance your flywheel to 28oz. Check around then check the price of a new flywheel. It may be cheaper to buy a new flywheel. Or check Ebay, Craigslist and the Stangnet classifieds. SOmeone has a used one somewhere.

Rusty67 · Jan 4, 2008

Don't try to do it yourself unless you are a machinist. Take it to a machine shop and have it done. It shouldn't cost too much to have it done properly.

69gmachine · Jan 5, 2008

I wouldn't trust all machine shops either. I've had one ruin a flywheel before. There are new ones available pretty cheap, under $100 IIRC. I'd just do that.

Rusty67 · Jan 5, 2008

I don't disagree that there are some hack job machinists out there. It goes without saying that finding a competent machinest is a neccesity in this hobby. Once you find one, why not use him ?

69gmachine · Jan 5, 2008

Rusty67 said:
I don't disagree that there are some hack job machinists out there. It goes without saying that finding a competent machinest is a neccesity in this hobby. Once you find one, why not use him ?

Certainly, if you know a good one stick with him! I live too far away from a competent automotive machine shop. Several have come and gone, some good others not so much.

pazur · Jan 6, 2008

noone?

Can't believe - thanks everybody at least for saying something, although this type of advice (buy a new one, good machinist should know) are like from a jiffy lube customer service representative

D.Hearne · Jan 6, 2008

I agree with the others on getting a good machine shop to rebalance it or buy a new one. I personally though never buy or use someone elses old flywheels. You have now way of knowing what it's been subjected to or how much it's been resurfaced.

pazur · Jan 6, 2008

I have a new flywheel and just want to make sure whatever machine shop good or bad is doing the rebalancing right. I am not going to do it with hand grinder

CraigMBA · Jan 6, 2008

I'm in the automotive business, and if you asked me to refer you to a qualified machine shop in the SoCal area I'd give you a simple answer.

I can't. There aren't any.

I know where a good one is in Bakersfield and one in Hanford, but compared to twenty years ago when everyone was good........I just can't do it.

D.Hearne · Jan 6, 2008

pazur said:
I have a new flywheel and just want to make sure whatever machine shop good or bad is doing the rebalancing right. I am not going to do it with hand grinder

Not done with grinding anyway. Weight is removed by drilling into the counterweight.

pazur · Jan 12, 2008

D.Hearne said:
Not done with grinding anyway. Weight is removed by drilling into the counterweight.

Can you advise exactly where to drill and how much? The guy I talked to wanted whole crank with flywheel to dynamically balance it

D.Hearne · Jan 12, 2008

It can be done without the crank, all you need is one of each flywheel or flexplate. Can't tell you how much to remove, only that a competent guy who does balancing will know how this is done. If he says it can't be done without the crank, find another machinst, cause the one your dealing with doesn't know his stuff.

ForceFed70 · Jan 12, 2008

Knowing how much to remove is the easy part (22oz). Knowing exactly where to remove it from so that it stays ballanced is the hard part...

This is not something you can do in your garage.

How to rebalance flywheel

pazur

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That's why they call it "dope"

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That's why they call it "dope"

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