Camshaft Chain And Gearing; Camchain Tensioner - Husqvarna TC 450 Workshop Manual

ENGINE OVERHAULING

Camshaft chain and gearing

At every engine overhaul the wear of the camshaft gear teeth and the chain
rollers should be checked. If the teeth are badly worn then replace the three
components. Hold the chain taut and check the length of 20 links (21 pins).
If any one of three cam drive components is found to be worn then all three
components should be replaced.
"L" STANDARD
155,5 mm
(6.12 in)

Camchain tensioner

The camchain tensioners should be replaced when the wear material is worn
through and metal is visible in the bottom of the wear marks.
G.10
WEAR LIMIT
158 mm
(6.22 in)
Part. N. 8000 H1344 (10-2009)