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Old 06-23-2015, 09:33 PM   #437 (permalink)
changzuki
Changfa diesel + Suzuki
 
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Join Date: Jul 2012
Location: Northern, NY
Posts: 527

Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
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Recently, Centurion has shed some additional weight through both the exhaust system (now shorter and lighter), and the bellhousing (replaced cast iron with an aluminum version).
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In driving the normal test route, the car did seem more sprite-ly but the handling was a bit funky. On a hunch I decided to check the wheel alignment all the way around.
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Centurions using a Spitfire chassis will require a four-wheel alignment. If you're a do-it-yourselfer then be delighted to know this is something you can do - however - also note that it can be rather time consuming. This will be especially true if checking each wheel in relation to the frame. If the frame is good and has never been in an accident this may only serve as a piece of mind and no adjustments needed.
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Previously, great pains were taken to ensure alignment was no-less than excellent, so this initial check of front and rear toe-settings was somewhat of an eye opener! Both were well out of specs and were severely toe-in! Replacement of the trunnions to a heim joint may have helped throw off the front, but each end of the car was also affected as a result of removing weight and raising the ride height of the car - even a little:
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The front is simple enough to adjust by loosening the jam nut at steering rod/tie rod, then just equally rotate each rod to lengthen (or shorten) the distance between the steering rack and tie rod ends.:
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The rear is a bit more time consuming and is adjusted by removing (or adding shims) under the mounts for the radius rods:
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I have an idea that's bumping around - but this will do for now as Centurion has another appearance to get to!
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~CrazyJerry

Last edited by changzuki; 08-03-2018 at 10:37 PM..
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