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Home >> Suzuki >> 1987 >> Samurai Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Propeller Shaft) >> Repair Instructions >> Driveline System Balance Adjustment (Using EVA) >> Adjustment Procedure Without EVA
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Adjustment Procedure Without EVA

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.
  1. Raise and support the vehicle; ensure that the drive axle, or axles are supported at ride height - vehicle body supported by suspension components.
  2. With the tire and wheel assemblies, and the brake rotors and/or brake drums removed from the drive axle or axles, start the engine and turn OFF all engine accessories.
  3. Place the transmission in forward gear.
  4. Run the vehicle at the speed which causes the most vibration in the propeller shaft; observe which end of the propeller shaft exhibits the greatest amount of vibration disturbance.
  5. Carefully hold a piece of chalk up to the end of the propeller shaft in order to just make contact as the shaft rotates.
  6. Turn the engine OFF to slow and stop the rotation of the propeller shaft.
  7. Observe the location of the chalk mark on the propeller shaft.
    • If the chalk mark circles the entire propeller shaft after the first attempt, remove the mark from the shaft and repeat steps  2 through  7; touch the chalk more gently to the propeller shaft.
    • If the chalk mark circles the entire propeller shaft after the second attempt, runout of the propeller shaft may not be the cause of the disturbance. Proceed to step  16.
    • If the chalk mark is only on a small portion of the propeller shaft, the mark identifies the heavy spot of the propeller shaft. The heavy spot of the propeller shaft will deflect downward during rotation. Place a small mark on the shaft 180 degrees, directly opposite the heavy spot, and identify the mark as the light spot. Proceed to step  8.
  8. Install a band-type hose clamp to the propeller shaft as a weight, with the head of the clamp directly on the light spot, or 180 degrees, directly opposite the heavy spot.
  9. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. The head of the clamp can be moved very slightly, if necessary to refine the balance achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased, proceed to step  10.
  10. Add a second clamp to the propeller shaft, next to the first clamp and with the clamp heads aligned.
  11. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. The head of the clamps can be moved very slightly an equal distance apart on either side of the light spot, or moved slightly while still aligned, if necessary to refine the balance achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased, proceed to step  12.
  12. Move the position of the clamp heads an equal distance on either side of the light spot between 1 and 120 degrees apart from each other to reduce the total amount of weight in relation to the light spot.
  13. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. If necessary, continue to move the position of the clamp heads an equal distance on either side of the light spot to a maximum of 120 degrees apart from each other, until the greatest amount of reduction in the vibration disturbance is achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased, proceed to step  14.
  14. Add a third clamp to the propeller shaft, next to the first and second clamps and with the head of the clamp directly on the light spot.
  15. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. If necessary, continue to move the position of the first and second clamp heads an equal distance on either side of the light spot to a maximum of 120 degrees apart from each other, until the greatest amount of reduction in the vibration disturbance is achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased after a third clamp was used on the propeller shaft, the propeller shaft likely requires replacement.
  16. If the heavy spot of the propeller shaft could not be identified, install a band-type hose clamp to the propeller shaft as a weight, with the head of the clamp directly in-line with an existing factory-installed weight.
  17. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. The head of the clamp can be moved very slightly, if necessary to refine the balance achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased, proceed to step  18.
  18. Move the head of the clamp 180 degrees, directly opposite the factory-installed weight.
  19. Observe the amount of disturbance to the propeller shaft.
    • If the amount of disturbance to the propeller shaft appears to be significantly reduced, the balance achieved may be sufficient and the vehicle should be road tested to determine the effect on the vibration concern. The head of the clamp can be moved very slightly, if necessary to refine the balance achieved.
    • If the amount of disturbance to the propeller shaft appears to be almost unchanged or even increased, the propeller shaft may require replacement.
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