The Ford Barn

Ray64 · 07-01-2010, 08:30 PM

I just installed new cast iron drums about a month ago.All of a sudden today i was driving and i noticed a shake in the front end.Dont feel like its the wheels but the whole frontend.I jacked it up and checked the steering all over,All is good.Only thing i found was the rt, front wheel bearing could be a little tighter.About 1/8th play from top to bottom.This is only on braking.T.I.A.RAY

Ron in Quincy · 07-01-2010, 08:40 PM

Ray,

Check the spring load on your drag link and tie rod ends, if OK , check the camber on your wheels, if OK, make sure your pitman is tight on the steering sector.

Ron

Ice man · 07-01-2010, 08:40 PM

Years ago when we got a wheel balance they did it on the car and the whole rotating assembly was balanced. Today only the wheel is balanced. Well I has a shimmy and installed a stabalizer and that was all for the shimmy. but at 45/55 mph I had a balance problem, that was driving me batty. I heard about Dyna Beads, got 4 4oz packs, installed them in the tire valve stem and no more problems. They work. Iceman

Gary WA · 07-01-2010, 09:13 PM

and where might one get those dyna beads??!! Thanks www.whidbeymodelaclub.com

Tom Wesenberg · 07-01-2010, 10:02 PM

Quote:

Originally Posted by Gary WA

and where might one get those dyna beads??!! Thanks www.whidbeymodelaclub.com

Bert's in Denver sells them.

Patrick L. · 07-02-2010, 08:22 AM

Sponsored Links (Register now to hide all advertisements)

As I understand your post, this only happens when your foot is stuck to the brake pedal?? If you release the brakes does the vibration disappear immediately?? If so, it sounds to like you may have brake drum issue..

Purdy Swoft · 07-02-2010, 09:03 AM

Check the toe in. I have found this to be the biggest cause of shimmy. I set mine at 1/16 plus or minus 1/32.

Ray64 · 07-02-2010, 11:31 AM

Thanks fellows

Preacher · 07-02-2010, 12:29 PM

Only thing i found was the rt, front wheel bearing could be a little tighter.About 1/8th play from top to bottom.

1/8th of an inch is ALOT. loose wheel bearings are an often overlooked source of front end shimmy.

RichardW · 07-02-2010, 03:47 PM

Are you sure it is shimmy? A few years ago I bought brake drums for my hydraulic brakes and ended up with a BAD shake. Turned out the drums were not true. They were core shifted. (Expensive offshore junk). I hadn't noticed before I installed them that the thickness of the shoes was WAY off. They were machined true on the inside but the outside was about a 1/4" off. I ended up having the supplier replace them.

gardon · 07-02-2010, 04:27 PM

dMake sure the wishbone is tight at the bellhousing. I had a bad shimmy onetime that was fixed by tightening the 2 bolts.

Larry Seemann · 07-02-2010, 04:39 PM

I had the exact same thing. turned out to be a loose spring perch nut.

07-01-2010, 08:30 PM	#1
Ray64 Senior Member Join Date: May 2010 Location: Grafton,OHIO Posts: 727	Front Shimmy I just installed new cast iron drums about a month ago.All of a sudden today i was driving and i noticed a shake in the front end.Dont feel like its the wheels but the whole frontend.I jacked it up and checked the steering all over,All is good.Only thing i found was the rt, front wheel bearing could be a little tighter.About 1/8th play from top to bottom.This is only on braking.T.I.A.RAY

07-01-2010, 08:40 PM	#2
Ron in Quincy Senior Member Join Date: May 2010 Location: Quincy, CA. Posts: 1,708	Re: Front Shimmy Ray, Check the spring load on your drag link and tie rod ends, if OK , check the camber on your wheels, if OK, make sure your pitman is tight on the steering sector. Ron

07-01-2010, 08:40 PM	#3
Ice man Senior Member Join Date: Jun 2010 Location: Southern Pines, N.Carolina Posts: 210	Re: Front Shimmy Years ago when we got a wheel balance they did it on the car and the whole rotating assembly was balanced. Today only the wheel is balanced. Well I has a shimmy and installed a stabalizer and that was all for the shimmy. but at 45/55 mph I had a balance problem, that was driving me batty. I heard about Dyna Beads, got 4 4oz packs, installed them in the tire valve stem and no more problems. They work. Iceman

07-01-2010, 09:13 PM	#4
Gary WA Senior Member Join Date: May 2010 Location: Clinton,WA/Whidbey Island Posts: 4,101	Re: Front Shimmy and where might one get those dyna beads??!! Thanks www.whidbeymodelaclub.com

07-02-2010, 08:22 AM	#6
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Front Shimmy Sponsored Links (Register now to hide all advertisements) As I understand your post, this only happens when your foot is stuck to the brake pedal?? If you release the brakes does the vibration disappear immediately?? If so, it sounds to like you may have brake drum issue..

07-02-2010, 09:03 AM	#7
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: Front Shimmy Check the toe in. I have found this to be the biggest cause of shimmy. I set mine at 1/16 plus or minus 1/32.

07-02-2010, 11:31 AM	#8
Ray64 Senior Member Join Date: May 2010 Location: Grafton,OHIO Posts: 727	Re: Front Shimmy Thanks fellows

07-02-2010, 12:29 PM	#9
Preacher Senior Member Join Date: May 2010 Location: Minnesota Posts: 198	Re: Front Shimmy Only thing i found was the rt, front wheel bearing could be a little tighter.About 1/8th play from top to bottom. 1/8th of an inch is ALOT. loose wheel bearings are an often overlooked source of front end shimmy. __________________ If it ain't broke, fix it 'til it is ... http://tcmafc.org/

07-02-2010, 03:47 PM	#10
RichardW Senior Member Join Date: May 2010 Location: Deer Park, Texas Posts: 100	Re: Front Shimmy Are you sure it is shimmy? A few years ago I bought brake drums for my hydraulic brakes and ended up with a BAD shake. Turned out the drums were not true. They were core shifted. (Expensive offshore junk). I hadn't noticed before I installed them that the thickness of the shoes was WAY off. They were machined true on the inside but the outside was about a 1/4" off. I ended up having the supplier replace them.

07-02-2010, 04:27 PM	#11
gardon Junior Member Join Date: Jun 2010 Location: kansas Posts: 26	Re: Front Shimmy dMake sure the wishbone is tight at the bellhousing. I had a bad shimmy onetime that was fixed by tightening the 2 bolts.

07-02-2010, 04:39 PM	#12
Larry Seemann Senior Member Join Date: May 2010 Location: Spokane, WA. Posts: 496	Re: Front Shimmy I had the exact same thing. turned out to be a loose spring perch nut.