G.9
TE 250 - 310 2012 I.E. / TE 250 - 310 2012 I.E. USA
TC 250 2012 - TC 250 2012 I.E. USA
TXC 250 - 310 2012 I.E. USA
ENGINE OVERHAUL
Workshop Manual Ed. 12-2011
Camshaft
Check the contact faces of the lobes for streaks, scoring, dents and waviness.
Clamp the camshaft between centres and check deviation using two dial gauges.
Service limit: 0.1 mm. Check that the lobes are in pristine conditions, without
signs of scoring or distortion.
STANDARD "L" SERVICE LIMIT
140 mm 142.5 mm
(5.51 in) (5.61 in)
Timing chain and gears
At each engine overhaul, check gear teeth and chain rollers for wear. If gear
teeth are badly worn, change both gears and the chain. Hold the chain taut to
take out any slack and measure across 20 links (21 pins).
If any one gear or the chain is worn beyond the specied limit, replace both
gears and the chain as a set.
Timing chain tensioners
Chain tensioners (1) must be replaced when the wear material is worn out.
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