Timing Belt Tensioner: Testing and Inspection
BELT TENSION ADJUSTER1. Visually check oil seals for leaks, and rod ends for abnormal wear or scratches. If necessary, replace faulty parts.
Note: Slight traces of oil at rod oil seal does not indicate a problem.
2. While holding tensioner with both hands, push the rod section against floor or wall with a force of 147 to 490 N (15 to 50 kg, 33 to 110 lb) to ensure that the rod section does not move. If it moves, replace tension adjuster with a new one.
3. Measure the extension of rod beyond the body. If it is not within specifications, replace with a new one.
Rod extension H: 15.4 - 16.4 mm (0.606 - 0.646 in)
BELT TENSIONER
1. Check mating surfaces of timing belt and contact point of tension adjuster rod for abnormal wear or scratches. Replace belt tensioner if faulty.
2. Check spacer and tensioner bushing for wear.
BELT IDLER
Check idler for smooth rotation. Replace if noise or excessive play is noted.