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-   -   Tales of whoa and a front end shake (http://www.clubcobra.com/forums/arizona-cobras/132799-tales-whoa-front-end-shake.html)

Danr55 03-24-2015 12:23 PM

Tales of whoa and a front end shake
 
As many of you know, I've had a problem with the front end on my car shaking on the right side. I've had three sets of wheels, and several different sets of tires and they all do the same thing. After consulting with some folks who are knowledgeable on the subject, it has been suggested that perhaps the thrust angle of the right side is not correct. Now I need to find someone who can check and adjust as needed. My one hope has pretty much fizzled on me. Does anyone know of an alginment shop that has the expertise to check and adjust the thrust angle on a Jag XKE front end, in the greater Phoenix area?

Detroit Bill 03-24-2015 12:30 PM

Quote:

Originally Posted by Danr55 (Post 1343431)
As many of you know, I've had a problem with the front end on my car shaking on the right side. I've had three sets of wheels, and several different sets of tires and they all do the same thing. After consulting with some folks who are knowledgeable on the subject, it has been suggested that perhaps the thrust angle of the right side is not correct. Now I need to find someone who can check and adjust as needed. My one hope has pretty much fizzled on me. Does any know of an alginment shop that has the expertise to check and adjust the thrust angle on a Jag XKE front end, in the greater Phoenix area?

How about a vintage Jag specialist?
Vintage Jaguar Service and Repairs! - Phoenix automotive services - backpage.com

Scotchman 03-24-2015 02:51 PM

I'd call Jack's Auto Allignment on Thomas and 29th st before paying a Jag specialist. They work on our Cobras. Maybe you can give them the details over the phone, i.e. Jag suspension. Good luck !

vatdevil 03-24-2015 02:51 PM

IRS correct? Then you need a 4 wheel alignment, which will verify correct thrust setting.

DWRAT 03-24-2015 03:19 PM

I just had a computerized 4 wheel alignment done at Network Alignment. $59.00
That's who Browns Auto Recommended.

vettestr 03-25-2015 12:30 PM

I use Network a lot but as I told you any shop should be able to check the thrust angle during a 4 wheel alignment. Thrust angle is to simply verify or find the true driven centerline of the tires or thrust line. The rear of an IRS is adjustable but the front spindles are fixed for the most part. But none the less , easy to check and part of the alignment as the new electronic units just need a button push.

On a (apologize for home built) home built car the extended centerline or merge of all 4 wheels can vary beyond ideal. When strange problems arise with suspension it is a good thing to verify. You said it happens during acceleration but not decal. so look at camber changes.

Danr55 03-26-2015 09:29 AM

OK. I just went back and verified and reset the watts linkage and guess what, the shake is gone. Seems Mr. Classic hit the nail on the head.. the right side was a full degree off (set back) from where is should have been. I clocked the angle on the control arm disaasembled everything, manually reset the angle and adjusted the linkage accordingly. Took it out and just tried like heck to make that nasty old shake come back and it was gone.

Thanks Jeff for being there..

vettestr 03-26-2015 09:50 AM

Great news Dan. These cars are such a rush, even better when running right. lol

Thor maine 03-26-2015 10:33 AM

A happy ending.

Karl Bebout 03-26-2015 01:38 PM

Danr will break something else....

Danr55 03-26-2015 02:01 PM

Believe me, Karl knows about breaking stuff.

Scotchman 03-26-2015 08:33 PM

We all know about breaking stuff. If you're not wearing out or breaking the parts on these cars, you're not using them. Drive 'em like they're stolen, just don't call me to bail you out ! **):JEKYLHYDE**)

Mesa Mike 03-27-2015 08:26 AM

Scotchman...you nailed it. If you don't drive it you won't BREAK it. I have my engine parts at the machine shop having a do over for my engine. It won't be complete by picnic time but will for my next track day, april 18. As far as i'm concern regarding engines, easy in/easy out. What better way to clean your engine bay!!!

Dwight 03-28-2015 05:01 AM

maybe this is our problem

Thrust Angle

Danr55 03-28-2015 06:16 AM

In the continuing saga.....I went to jacks alignment and found out that the right rear wheel was not running true. It was about .155" out of true. A bit of work and it now runs less than .010 true. Amazing how smooth everything runs when the rear end doesn't bump.

Scotchman 03-28-2015 08:29 AM

Dwight,
Good article :MECOOL:

mikiec 03-28-2015 01:07 PM

Breakage is fine, if you can afford to fix it. So far been lucky. Still on the same motor and read end. I did have to rebuilt my
If I break something now the car will sit for a long time.

DWRAT 03-28-2015 08:42 PM

Quote:

Originally Posted by mikiec (Post 1343804)
Breakage is fine, if you can afford to fix it. So far been lucky. Still on the same motor and read end. I did have to rebuilt my
If I break something now the car will sit for a long time.

What did you have to rebuild?

mikiec 03-29-2015 06:59 AM

One year at Laughlin the clutch cable broke going from first to second gear. I told the tranny it was going into 2nd it said no.. Broke a synchro and dog. Put in all new synchros, new first to second gear everything.including slider.

Car Nut 03-31-2015 10:10 AM

Whoa

Woe

Wow


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