Flywheel Noise

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Dec 13, 2003 | 11:56 AM

78RangerXLT

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Flywheel Noise

I have a 1990 Ford F-350 4dr p/u with a 7.3 and a international 5spd manual tranny. I hear a knocking noise from the flywheel region, when going down the road the noise comes and goes. When the noise is present @ idle, when revved the noise gains speed as well. I have good oil pressure (about 40) what could this be?

Dec 13, 2003 | 04:34 PM

iconly1

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when was the last time you replaced your clutch?
is your pedal hard to push ?
a lot of the flywheels on these desils dont have a solid flywheel and it maybe it getting ready to come out

Dec 14, 2003 | 05:31 AM

Dave Sponaugle

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From: Nutter Fort, WV

Could be a throw out bearing getting ready to puke. Does it change if you have your foot on the clutch pedal and depress it slightly?

Dec 14, 2003 | 11:43 AM

78RangerXLT

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We know its not the thow-out bearing and there is no difficulty in depressing the clutch....I'm stumped.

Dec 14, 2003 | 11:47 PM

Spectramac

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From: Monroe, WA

Time for a new flywheel.

Dec 18, 2003 | 07:45 AM

spearfisher

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From: SE LOUISIANA

Springs in the flywheel are probably worn out. Nothing to worry about though, I drove mine for another 90,000 miles after mine started. When my clutch went out I replaced the original flywheel to a solid flywheel & problem was solved. By the time I finally changed it out the vibration sounded pretty bad & caused the whole truck to vibrate, got some strange looks from people that rode with me for the first time.