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From: PHOENIX, AZ Yes, it's true. You are a good woman. Then again, you may be the Antichrist.
Harmonic balancers gone bad
Many of you probably already know this, but there may be many (like me) who had no idea exactly what a harmonic balancer looks like, or that they can go bad.
Now, I know...
I was trying to check the timing on my '75 and the timing mark was showing up WAY too early. After getting a little information and direction from DUB (thanks DUB!), I figured out that my balancer was most likely bad. The outer ring that the timing mark is on can actually spin to a new position, making the timing mark useless.
Here's the proof. Compare the timing mark on the bottom of each balancer to the position of the key way in the center of the balancer. Mine has spun quite a bit.
On the bright side, I now have a fresh, new balancer installed and will be able to check my timing.
This is a new one to me. I have never heard of a harmonic balancer go bad. That does explain why I was unable to time a 78 Lincoln Continental with a timing light. That has always had me going hmmmmm.
I've had more than a few go bad. Found a couple bad on cars I've bought when owner's said couldn't get it to run right... Not really something a person looks for being bad. One of the first things gets upgraded on any built up emgine.
A lot of new Corvette owners do not realize that original motor timing chain gears are aluminum, with plastic nylon cast on teeth! My 68 327/350 HP gear went at 42,000 miles.
Please be aware of this, original engine owners. Lou.
when I changed my cam shaft on my 1982, I changed too a double row chain set.but the one I took off looked brand new,The nylon gears on my 1967 gto fell apart .
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Harmonic balancers gone bad
