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10-01-2022, 08:33 AM | #1 |
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Join Date: May 2010
Location: Long Island, NY
Posts: 3,432
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Hunting For Rattlers
Having put a new engine and a new type front engine support into my Victoria, I notice the vibration frequency has changed and created a whole new set of rattlers. After 3 days of hunting for rattlers, I have found:
>RF fender carriage bolt loose; >RF front bumper arm loose; >Front tool box between the frame horns rubbing against radiator apron; >Tools & spare parts in the tool box rattling; >Spark advance rod vibrating with a displacement that brought it close enough to #3 spark plug to cause arcing; >Speedometer cable grommet in the firewall split, so cable vibrated against edge of the hole; >Brake rods rattling. There are other rattlers I have yet to hunt down!
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Bob Bidonde |
10-01-2022, 09:09 AM | #2 |
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Re: Hunting For Rattlers
Bob I need you to take a ride in mine so we can find the rattles, bring a notebook!
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10-01-2022, 09:29 AM | #3 |
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Join Date: May 2010
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Re: Hunting For Rattlers
In the desert here is the Rattlers that some hunt around here!
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10-01-2022, 09:50 AM | #4 |
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Join Date: Jan 2020
Location: SF Bay Area
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Re: Hunting For Rattlers
I found one of those "diaper" pans underneath the clutch housing in my car, that was a major rattler. Also found the speedo cable was rubbing against the bottom of the metal tunnel beneath the gas tank, a visit to a local bike shop and procurement of an inner tube from their dumpster took care of that one. (For the latter, I've also seen some of that split plastic cable conduit used.)
JayJay
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
10-01-2022, 11:00 AM | #5 |
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Join Date: Jun 2014
Location: Land of Lincoln
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Re: Hunting For Rattlers
Need pictures of the new front mount, and how you fixed the rattles! not of the ones you just tighten a nut ! LOL
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Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done |
10-01-2022, 12:34 PM | #6 | |
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Location: Central Illinois
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Re: Hunting For Rattlers
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Quote:
Ted, by chance, does your front mount have the leather washer in it? A leather washer placed between the mount and the top of the flat spring solved a harmonic??? squeal on a friend of mine's pickup recently. Nasty noise. Snyders has the washers.
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"It ain't what you know for certain that gets ya in trouble. It's what ya know for certain that just ain't so!" |
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10-01-2022, 12:35 PM | #7 |
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Location: Long Island, NY
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Re: Hunting For Rattlers
This is the front mopunt I put into my Victoria. It's a replica of the Model "B" mount that Float-A-Motor also copied.
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Bob Bidonde |
10-01-2022, 01:40 PM | #8 |
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Location: Leicester, MA
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Re: Hunting For Rattlers
I found that the door rattles most, no weatherstripping.
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10-01-2022, 04:53 PM | #9 |
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Re: Hunting For Rattlers
I just take my hearing aides out.
David Serrano |
10-01-2022, 08:42 PM | #10 |
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Join Date: Jun 2014
Location: Land of Lincoln
Posts: 3,114
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Re: Hunting For Rattlers
I don’t know, it’s been a long time, installed FAM side and rear last winter. The motor now moves up and down at the front, might try the B style front.
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Don't force it with a little hammer tap, tap, tap get a bigger hammer tap done |
10-01-2022, 10:04 PM | #11 |
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Location: Concord CA
Posts: 623
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Re: Hunting For Rattlers
The mount shown by Bob in Post #7, has been shown to produce more vibrations than the standard A mount. Why change!?
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10-02-2022, 11:27 AM | #12 |
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Join Date: May 2010
Location: Long Island, NY
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Re: Hunting For Rattlers
Hi Herb,
You are correct re the Model "B" type mount by itself causes more severe vibration nodes especially at 30 MPH in my case. However, I am also changing to the rear Float-A-Motor mounts. I could not find a sweet spot adjustment of the original front damper, so I am experimenting with the new mount system.
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Bob Bidonde |
10-02-2022, 12:34 PM | #13 |
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Join Date: Aug 2017
Location: SoCal Desert
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Re: Hunting For Rattlers
I have FAM's on the front and rear and I couldn't be happier.
Regards Bill |
10-02-2022, 05:47 PM | #14 |
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Join Date: May 2010
Location: Concord CA
Posts: 623
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Re: Hunting For Rattlers
Hi Bob, I have the front yoke and FAM at the rear on both my A's. I just tighten the FAM through bolt so that with my hand Ican still turn the upper cap.
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10-03-2022, 08:21 AM | #15 |
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Join Date: May 2010
Location: Long Island, NY
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Re: Hunting For Rattlers
Thanks for the advice the FAMs. Here is what I have done to the rattlers so far:
>RF fender carriage bolt loose. Tightened it; >RF front bumper arm loose. I tightened the nuts on the special post bolts connecting the bumper arm to the frame; >Front tool box between the frame horns rubbing against radiator apron. To each lower rear corner of the toolbox, I glued 3/16" thick x 3" long x 2" wide rubber pads; >Tools & spare parts in the tool box rattling. Lined the interior of the toolbox with 1/8" thick corrugated cardboard; >Spark advance rod vibrating with a displacement that brought it close enough to #3 spark plug to cause arcing. Added a 3" long x 5/16" diameter rubber tubing split axially to the rod, and secured it with 2 cable ties; >Speedometer cable grommet in the firewall split, so cable vibrated against edge of the hole. Discarded the grommet and replaced it with a piece of 3" long x 5/16" diameter rubber tubing split axially to the cable.
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Bob Bidonde |
10-03-2022, 08:26 AM | #16 |
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Join Date: May 2010
Location: Long Island, NY
Posts: 3,432
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Re: Hunting For Rattlers
Thanks for the advice the FAMs. Here is what I have done to the rattlers so far:
>RF fender carriage bolt loose. Tightened it; >RF front bumper arm loose. I tightened the nuts on the special post bolts connecting the bumper arm to the frame; >Front tool box between the frame horns rubbing against radiator apron. To each lower rear corner of the toolbox, I glued 3/16" thick x 3" long x 2" wide rubber pads; >Tools & spare parts in the tool box rattling. Lined the interior of the toolbox with 1/8" thick corrugated cardboard; >Spark advance rod vibrating with a displacement that brought it close enough to #3 spark plug to cause arcing. Added a 3" long x 5/16" diameter rubber tubing split axially to the rod, and secured it with 2 cable ties; >Speedometer cable grommet in the firewall split, so cable vibrated against edge of the hole. Discarded the grommet and replaced it with a piece of 3" long x 5/16" diameter rubber tubing split axially to the cable.
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Bob Bidonde |
10-03-2022, 11:44 AM | #17 |
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Re: Hunting For Rattlers
I saw the same issue a few months back. Turned out the motor mount bolts were just snug and night tight. Tightened up the bolts and the vibrations went away.. It's worth a try.
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10-04-2022, 07:26 AM | #18 |
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Location: Long Island, NY
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Re: Hunting For Rattlers
Dick M,
You are right-on! Changing the tightness of the front mount bolts changes the stiffness of the mount and thus changes the vibration frequency transmitted by the mount. I need to find the sweet spot of bolt tightness for my application.
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Bob Bidonde |
10-04-2022, 07:29 AM | #19 |
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Location: SoCal Desert
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Re: Hunting For Rattlers
Hey Bob,
Is your motor and trans at the recommended 3.5° to the frame? If not, that might be adding to the issue. Regards Bill |
10-04-2022, 08:05 AM | #20 |
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Join Date: Jun 2013
Location: Marana Arizona
Posts: 1,771
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Re: Hunting For Rattlers
OK, I was bothered by ONE of the many in tune rattles in my A and found that the little flap that covered the engine crank hole was loose...Silicone fixed that. Whose annal? What did you say dear?
One must learn to be selective... Chap |
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