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07-21-2020, 09:09 AM | #1 |
Senior Member
Join Date: Nov 2010
Posts: 516
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vibrates when backing up
i have 60 hp flat head in my car an when starting to back up it ishakes bad. smooth in 1st. any suggestions is appreciated.
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07-21-2020, 10:59 AM | #2 |
Senior Member
Join Date: Jun 2014
Location: Williamsburg, VA
Posts: 1,632
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Re: vibrates when backing up
Check for deteriorated motor and transmission mounts.
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07-21-2020, 11:00 AM | #3 |
Senior Member
Join Date: May 2010
Location: Schooley's Mountain
Posts: 530
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Re: vibrates when backing up
Check your transmission mount and motor mounts.
As a General rule, vibrating, shaking when backing up indicates a bad or loose transmission mount. Vibrating, shaking when starting out in 1st gear indicates bad or loose motor mounts. Ken |
07-21-2020, 12:03 PM | #4 |
Senior Member
Join Date: Mar 2011
Location: upstate NY
Posts: 479
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Re: vibrates when backing up
Vanpeltsales site go to clutch chatter.
http://www.vanpeltsales.com/FH_web/f...oubleshoot.htm I had a multiple problems with mine. wrong washer holding the universal joint tight to the tranny tailshaft. It caused the bolt to loosen up and the U-joint would smash against the bearing retainer. Worn c-clips in the tranny. Oil on the clutch. |
07-21-2020, 03:38 PM | #5 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,465
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Re: vibrates when backing up
Clutch chatter could be the culprit for sure. When in reverse, the rear axle is pulling on the drive line instead of pushing. This puts things in the opposite bind that they're in normally in forward gears. Loose mounts can cause problems in both forward and reverse but may be masked by adjustments to take up the slack. There could also be something going on with the reverse idler gear but that would be an uncommon thing.
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07-21-2020, 03:56 PM | #6 |
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Join Date: May 2010
Location: Solihull, England.
Posts: 8,766
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Re: vibrates when backing up
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Mart. |
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