How To Change Your Fan Belt

How To Change Your Fan Belt

Fan Belt Placement

Fan Belt Placement for proper fitment on Lexus V8 Engines

HOW TO CHANGE YOUR FAN BELT AND INSPECT DRIVE BELT’S INSTALLATION CONDITION

Check that the drive belt fits properly in the ribbed grooves.

Cracked V8 Lexus Fan Belt

Cracked Lexus V8 Fan Belt

A Belt Tensioner is used. So checking the belt tension is not necessary.

Visually check the drive belt for excessive wear, frayed cords, etc. If necessary, replace the drive belt.

Lexus V8 Fan Belt Tension

Lexus V8 Fan Belt Tension

  • Cracks on the rib side of a drive belt are considered acceptable. If the drive belt has chunks missing from the ribs, it should be replaced.
  • The drive belt tension can be released by turning the belt tensioner clockwise.
Fan Belt Tention Marks

Fan Belt Tention Marks

INSPECT DRIVE BELT TENSION

Check that the arrow mark on the belt tensioner falls within area “A” of the scale.

If it is out side area “A”, replace the drive belt.

When a new belt is installed, it should lie within area B. If not, the
drive belt is not correct.

Check the belt tensioner operation.

Checking Fan Belt Tension

Checking Fan Belt Tension

  • Check that the belt tensioner moves downward when the drive belt is pressed down at the points indicated in the illustration with approx. 98 N of force.
Fan Belt Marks For Tension

Fan Belt Marks For Tension

Check the alignment of the belt tensioner pulley to make sure the drive belt will not slip off the pulley. If necessary, replace the belt tensioner.

Check that the arrow mark on the belt tensioner tails within area A of the scale. If it is outside area A, replace the drive belt.

After installing a drive belt, check that it fits properly in the ribbed grooves.

Check by hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.

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