Timing Belt Tensioner: Testing and Inspection

Semi-automatic toothed belt tensioning roller, checking
Special tools and equipment





^ T100200 2-hole wrench
^ Mirror





Installation position
^ Angled retainer-arrow- must be located in cut-out on cylinder head.

Conditions
^ Engine must not be more than warm to the touch

Test sequence
- Place camshaft sprocket on cyl. 1 TDC





- Press hard with thumb on camshaft drive belt. Indicator -2- must move (use mirror).
- Turn crankshaft two rotations in direction of engine direction until engine is again at TDC cyl. 1. When doing this it is important that last 45°(1/8turn) turn is performed without stopping. Check camshaft drive belt tension again.
Tensioning roller must return to its original position (notch -1- and indicator -2- align again).

Note: Check using a mirror.