UKCRC Forum

Marques => Hawk => Topic started by: Kev Davies UKCC Membership on May 13, 2025, 10:41 AM

Title: Hawk Self Centering
Post by: Kev Davies UKCC Membership on May 13, 2025, 10:41 AM
Hi All,
after much too long I'm finally back on the Sebring build getting ready for IVA.

I've only driven it very briefly but I have a distinct lack of self centering which I'm sure is an issue for IVA.

I have Gerry's uprated setup.

Any suggestions where to start looking, I think I already have maximum castor adjustment but I will obviously revisit that.
Title: Re: Hawk Self Centering
Post by: aaronjb on May 13, 2025, 12:47 PM
"Like" because you're back on it, not because you've got a problem  ;D

I would think it is most likely to be something geo related, so insufficient castor, excessive toe (in or out), and least likely camber? Or a bind in the steering somewhere but I assume you'd feel that as the driver.

No PAS, I presume?
Title: Re: Hawk Self Centering
Post by: KevinW on May 14, 2025, 01:05 PM

Maybe worth posting on th T289R forum.
Or mailing Andy Mulhearn direct.

Pete Combes would def have known, but sadly no longer with us.
Title: Re: Hawk Self Centering
Post by: JON1D on May 14, 2025, 04:24 PM
Could be just some minor adjustment with toe-in. To much toe-out can give feeling of dead spot in the centre. If your spot on with Gerry's figures you should not be off. Its obviously not a worn component if all new but new can have play on U/J worth a check.
I would also try adjust your tyre pressures down 2psi at a time and see how it feels.
Title: Re: Hawk Self Centering
Post by: Chris on May 14, 2025, 07:43 PM
Chang Lim at Thunder Road cars carried out my set up for my Southern Roadcraft a good few years ago now,
I am still more than happy with how he set it, no bump steer or excessive tyre ware etc .
As this was pre I v a am not sure it would comply ?
I have the set up figures that I used to get things going at the time before Chang did his final tweaks,
If you want these figures, just let my know I will be happy to dig them out .



Title: Re: Hawk Self Centering
Post by: Kev Davies UKCC Membership on May 16, 2025, 09:57 AM
Thanks all,
it's the usual pre IVA problem can't drive it anywhere to get it properly set up and can't justify transport costs.

#KevW I have posted on the 289 Register too thanks.

I'll see if I locate a set of old school tracking sticks locally.
Or maybe a piece of string. LOL!
Title: Re: Hawk Self Centering
Post by: KevinW on May 18, 2025, 10:05 PM
Hi Kev, Wasn't obvious to me when I just looked? Is it buried under another post?
Stuart Clarke was the other person who has a lot of Hawk knowledge. Very nice guy.

Quote from: Kev Davies UKCC Membership on May 16, 2025, 09:57 AMThanks all,
it's the usual pre IVA problem can't drive it anywhere to get it properly set up and can't justify transport costs.

#KevW I have posted on the 289 Register too thanks.


I'll see if I locate a set of old school tracking sticks locally.
Or maybe a piece of string. LOL!
Title: Re: Hawk Self Centering
Post by: Kev Davies UKCC Membership on Sep 02, 2025, 01:21 PM
Just to close this post off.
I found that the issue was actually that the rack (which I rebuilt) was just a little tight on the pinion preload.
One more thin shim under the cover and the jobs a good'un!
Passed IVA no worries on the steering and it self centres fine now.
Just waiting for an IVA re-test now, just had a couple of very minor issues (now sorted).