Isuzu Cars and Trucks 1981-1991

Front End Alignment

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NOTE
Steering problems are not always the result of improper alignment. Before aligning the car, check the tire pressure and check all suspension components for damage or excessive wear.

CAMBER
Cars

On all I-Mark (RWD) and early model Impulse, camber angle can be increased approximately 1 degree by removing the upper ball joint, rotating it 1 / 2 turn and reinstalling it with the cut-off portion of the upper flange on the inboard side of the control arm. On late Impulse models, camber is not adjustable. Replace parts as necessary to correct alignment. On FWD I-Mark, Impulse and Stylus, the camber cannot be adjusted because it is preset at the factory.

Trucks

The camber angle can be adjusted by means of the camber shims installed in position between the chassis frame and fulcrum pins.



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Fig. Camber adjustment all trucks

CASTER
Cars

On RWD I-Mark caster angle can be changed by realigning the washers located between the legs of the upper control arm. Washers come in two sizes 3mm and 9mm. On FWD I-Mark, Impulse and Stylus caster angle is built into the front end and is not itself adjustable.


NOTE
On 1983 and 1989 RWD Impulse, caster angle can be adjusted by varying length of the strut bar (adjust with lock nut).



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Fig. Caster adjustment RWD I-Mark and Impulse

Trucks

The caster angle can be adjusted by varying the length of the strut rod for the 2WD P'up. The caster angle can be adjusted by means of caster shims installed in position between the frame and fulcrum pins. Adding to one side or another change the caster angle. Adjust camber after adjusting caster.



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Fig. Caster adjustment 2WD P'up



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Fig. Caster adjustment 4WD trucks

TOE-IN ANGLE
All Vehicles

Toe in is controlled by adjusting the tie rod. To adjust the toe in setting loosen the nuts at the tie rod end. Rotate the rod as required to adjust the toe in. Retighten the cover and locknuts, check that the rubber bellows is not twisted on vehicles equipped with rack and pinion steering systems. For all specifications, see the Alignment Specs in this section.



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Fig. Toe-in adjustment all vehicles

VEHICLE HEIGHT ADJUSTMENT

The vehicle height can be adjusted by turning the torsion bar adjusting bolts to achieve the desired vehicle height.


CAUTION
Do NOT over or under tighten the torsion bar adjusters. The torsion bar may break due to over extension. A broken torsion bar may cause the vehicle to loose control causing personal injury.



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Fig. Adjusting vehicle height all trucks

 
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