Harmonic Balancer
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From: Maryland
Harmonic Balancer
[updated:LAST EDITED ON 23-Oct-02 AT 07:48 AM (EST)]Yes I replaced it with a new one. But it was the same part # of the on that was on the eng. The orginal configuration had a man trans mission. I changed it out for an Auto (C6)
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From: Maryland
Harmonic Balancer
Yes Thats what I thought. When I rebuilt the eng(see gallery)I put a new one on. But I have a vibration at low RPM at idle goes away around 1000.The eng only has 3hrs and maybe 10 Miles on it. My Cam is a Crane 272 grind I would not think that would do it. Thanks Art
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From: Porterfield
Harmonic Balancer
NO it wouldn't but did you get the right Flywheel for it .. it has a 28 oz. imbalance in it .....
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From: Maryland
Harmonic Balancer
[updated:LAST EDITED ON 24-Oct-02 AT 11:05 AM (EST)]Shazam.
Here is what I got. I installed a new flywheel, Jegs Part # 564-N93002 (internal balanced) The Harmonice balancer is also an internal balanced.
There is another part # 564-N93002x JEGs lists ( external Balanced 28 ounce)
PLease tell me I didn't mess up. I am assuming the if the Harmonic balancer is internal the fly wheel would be. I hope I am right! Thanks Art
Here is what I got. I installed a new flywheel, Jegs Part # 564-N93002 (internal balanced) The Harmonice balancer is also an internal balanced.
There is another part # 564-N93002x JEGs lists ( external Balanced 28 ounce)
PLease tell me I didn't mess up. I am assuming the if the Harmonic balancer is internal the fly wheel would be. I hope I am right! Thanks Art
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From: PacNW
Harmonic Balancer
I hate to bring this up this late in the game but the machine shop should have recommended that you bring the flexplate, crankshaft and balancer in and have them balanced as a unit. IMO it's worth the extra $ to have it done even on a mild rebuild.
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From: Maryland
Harmonic Balancer
Learning the hard way!! The eng is in truck/trans hooked up starts/runs/etc. OK Now how do I recover if I made a mistake?
Do I have a good set up? (or is all this in my mind)
Do I need to remove the C6 and change fly wheel?
Were can I get info to verify my set up?
The vibration is at idle and goes away as you increase rpm.
I need an expert to assist. Thanks Art
Do I have a good set up? (or is all this in my mind)
Do I need to remove the C6 and change fly wheel?
Were can I get info to verify my set up?
The vibration is at idle and goes away as you increase rpm.
I need an expert to assist. Thanks Art
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From: Maryland
Harmonic Balancer
[updated:LAST EDITED ON 24-Oct-02 AT 04:09 PM (EST)]The eng is a 1979 351m. This is what I did to it. I hope I didn't scrxx it up! Thanks Art
Aussie Heads (port polished)
Flat top Pistons
Bored 30 over
Crank 10 under,polished
Rings,bearings etc
Crane 272 Cam
Edelbrock 650 (1406)
Edelbrock performer 400
MSD 6a
MSD dist
Roller timing chain
High vol oil pump
Headers
Dual exh
High flow cats
Flowmaster muffler 2 in 2 out
C6 B/M Trans kit
B/M shift kit
B/M Megashifter
All hoses braided stainless covering
Ford Racing Valve Covers and Wing Nuts
New damper
Aussie Heads (port polished)
Flat top Pistons
Bored 30 over
Crank 10 under,polished
Rings,bearings etc
Crane 272 Cam
Edelbrock 650 (1406)
Edelbrock performer 400
MSD 6a
MSD dist
Roller timing chain
High vol oil pump
Headers
Dual exh
High flow cats
Flowmaster muffler 2 in 2 out
C6 B/M Trans kit
B/M shift kit
B/M Megashifter
All hoses braided stainless covering
Ford Racing Valve Covers and Wing Nuts
New damper
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Joined: Oct 2002
Posts: 18,488
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From: The Big, Oregon
Harmonic Balancer
"All 335-series engines are externally balanced with a 28 oz-in imbalance on the crankshaft (the same as 302 and 351W engines up to 1982)."
This is straight from Bubba's website.
For the sake of longevity, and to prevent a flywheel from biting your feet, you may want to replace the damper and flexplate.
Jared
http://home.earthlink.net/~bubbaf250/
This is straight from Bubba's website.
For the sake of longevity, and to prevent a flywheel from biting your feet, you may want to replace the damper and flexplate.
Jared
http://home.earthlink.net/~bubbaf250/
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From: (near) Denver USA
Harmonic Balancer
Art,
I hate to confirm the bad news for you, but yes, you need to switch the flexplate. The Jeg's part #564-N93002X external balance looks like the right part.
You never said exactly which harmonic balancer you used (part number?), but if your engine had the correct balancer before, then it was for external balance.
I hate to confirm the bad news for you, but yes, you need to switch the flexplate. The Jeg's part #564-N93002X external balance looks like the right part.
You never said exactly which harmonic balancer you used (part number?), but if your engine had the correct balancer before, then it was for external balance.