Timing Belt: Inspection

NOTE: Never forcefully twist, turn inside out or bend timing belt. Do not allow oil or grease to come in contact with timing belt.

Replace timing belt if it is contaminated with oil or grease.
Check timing belt for uneven wear, fraying, peeling, cracking and hardening. Replace timing belt as necessary.

Fig 1: Inspecting Timing Belt For Wear
Courtesy of KIA MOTORS AMERICA, INC.
Bend timing belt into a "U" shape as shown in figure. Distance "A" must be at least 1.0 in (25 mm).

Fig 2: Inspecting Timing Belt Condition
Courtesy of KIA MOTORS AMERICA, INC.
Inspect both idler pulley and tensioner pulley for uneven wear and smooth bearing operation.

Fig 3: Inspecting Timing Belt Tensioner Pulley
Courtesy of KIA MOTORS AMERICA, INC.

NOTE: Do not clean tensioner pulley or idler pulley with cleaning fluids. If needed, use a soft rag to wipe them clean. Avoid scratching tensioner pulley or idler pulley as it can affect integrity of timing belt.
Check the free length of tensioner spring. Replace tensioner spring if necessary.
Free Length 1.402 in (35.6 mm)

Fig 4: Measuring Tension Spring Free Length
Courtesy of KIA MOTORS AMERICA, INC.
Inspect camshaft pulleys and timing belt pulley for broken teeth or damage.
NOTE:
- Replace any component that shows damage, excessive wear, or that appears prone to a possible failure.
- Do not clean pulleys with cleaning fluids. If needed, use a soft cloth to wipe them clean, and avoid scratching the pulleys as it will affect integrity of the timing belt.