S5 Workshop Manual Engine
3. Inspection
1) Chain wheel, tensioner belt pulley and idler wheel.
Inspect whether camshaft chain wheel, crankshaft chain wheel, tensioner pulley
and idler wheel have abnormal abrasion, crack or damage. If necessary, replace them.
Inspect whether tensioning wheel and idler wheel rotate freely and smoothly, and
inspect their free play and noise. If necessary, replace it.
If there is grease flowing out of
bearing, replace tensioning wheel.
2).Auto-tensioner
Inspect whether automatic tensioning wheel has leakage. If necessary, replace it.
Inspect whether rod end has abrasion or damage. If necessary, replace it.
Measure the projection length of the rod. If it exceeds the specified value, replace
tensioning wheel.
Standard value: 14.5 mm
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