Imbizo - Sharing Knowledge - Shock Absorbers

TECHNICAL FACTS & FAQ - CAPS

8 SIGNS OF WORN SHOCKS

Understanding the effects that worn shock absorbers have on a vehicle will help identify the need to replace with new product.

Below is Gabriel’s simple 8 rule guide.

SIGNS OF WORN SHOCKS on Tyres

 

SIGNS OF WORN SHOCKS & ASSOCIATED PROBLEMS

Shocks & Struts:

  • Are the tyres wearing unevenly?
  • Does the vehicle continue to rock more than twice, front to back?
  • Does the vehicle lean to a point where control might be negatively affected?
  • Does the vehicle bounce more than twice after going over a bump in the road?
  • Is the vehicle ride harsh or bumpy?
  • Does the vehicle not have great stopping ability?

Complaints, Claims & their causes
FITTING

  • Identify the type of shock absorber being fitted and fit it the right side up.
  • Do not grip the piston rod with any tool as this might damage it. A chipped or damaged rod could cause wear on the upper rubber seal and thus cause the oil to leak out.
  • Do not over-tighten. This might damage the rubber mountings.

Complaints, Claims & their causes
FAULTS – the most common complaints are:

  1. Loss of fluid (leaking) This is caused by a damaged piston shaft, thereby damaging the seal
  2. ‘Knocking through’ or ‘bumping’ This is sometimes attributed to the shock absorber being soft, but it could be weak springs or suspension.
  3. Broken or worn mountings or bushes. This is caused by age. It causes noise and limits or eliminates effectiveness
  4. Shock absorber body damage, e.g. dents. Stones striking the shock absorber usually cause this. Another cause is the vehicle striking a sand bank, ditch, or pavement etc.
  5. Bent shaft. The vehicle striking something could cause the piston to jam and unscrew.
  6. Loose dust cover. This is often caused by stones striking the shock absorber, but can also be caused by the vehicle striking something. The weld pulls loose on the dust cover, resulting in rattling.

Selling The Benefits.

  1. Good shocks cut costs because worn ones cause tyre wear, damage the suspension etc.
  2. Good shocks enhance safety. Cars with worn shocks sway dangerously.
  3. Good shocks enhance comfort by providing a smoother ride.
  4. Good shocks improve performance. Worn shocks affect brake control, etc.

1. The Gas pressurised range
GAS RYDER

This is a full range of shock absorbers, spring seat shock absorbers, MacPherson struts and MacPherson cartridges.

They provide outstanding levels of comfort and road holding because the gas pressurisation improves the shock absorber response speed to road surface changes.

Average Gas Pressure is 250N

2. The Hydraulic (non-gas) range
Technomatic:

Struts, Cartridges & Spring Seat Shocks

Fleet Ryder:

The Truck and Bus range

3. The Low pressure gas range
(Safari & Technomatic)

This is a range of low pressure shocks built for passenger vehicles, ½ and 1 ton LDV’s and SUV’s

Average Gas pressure is 100N

SAFARI HDP (Heavy Duty Performance)
Gabriel Safari HDP – Product Features

  • Ø35, Ø41 or Ø46 Big bore Working Cylinder
  • High temperature oil that can operate effectively at 180ºC
  • Viton rod seal
  • Hydraulic stop lock
  • 360º reinforce welded mounts
  • Solid Machined eye rings
  • Durable polyurethane / rubber mounting bushes
  • Teflon DU bushes in rod guides · Velocity sensitive valving
  • 3 years unlimited kilometres warranty

GAS PRESSURISED VS. HYDRAULIC, NON GAS SHOCKS
Advantages of Gas Pressurised Shock.

  • FASTER RESPONSE, thus giving enhanced contact between tyre and road.
  • Enhanced RIDE CONTROL.
  • GREATER RESISTANCE to fade.
  • QUIETER OPERATION than conventional shock absorbers.
  • LESS possibility of the OIL FOAMING during hard use.

Sales Pointers
Strut Cushion / Bump Rubber

The gaiter protects the strut’s chrome piston rod from damage, keeps dirt out of the seal, pitting from stone chippings and corrosion from whatever the road may throw up.

The compression bumper, which fits into the boot, avoids internal damage being caused by preventing metal-to-metal contact under severe compression of the piston rod.

Address:
59 Merino Avenue
City Deep
Johannesburg
2049
Postal Address:
P.O. Box 86222
City Deep
Johannesburg
2049
Tel: +27(0)11 627 2500 Fax: +27(0)11 627 2600

 Information kindly provided by Torre Automotive

 

View Also:

Shock Absorbers and Safe Driving

Dangers of Worn Shock Absorbers

Shock Absorbers and Safety on the Road

Imbizo: Know more about Vehicle Components

Imbizo : Know more about Brakes

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