Husqvarna SMS4, Руководство по ремонту

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F1.7 Part. N. 8000 H4704 (07-2010)
07
08
09
ENGINE OVERHAUL
CAmsHAft spROCkEt ANd tImING CHAIN GUIdE CHECk
1. Check:
• Camshaft sprocket.
• Over 1/4 of "a" wear tooth Replace as a block the camshaft
sprocket, the timing chain and the crankshaft.
(see fig. 07)
a. 1/4 of tooth
b. Correct
2. Check:
• Timing chain guide (exhaust side) Damage/wear Repla-
ce.
tImING CHAIN tENsIONER CHECk
1. Check:
• Timing chain tensioner
• Clefts/damage/irregular movement Replace.
• NOTE:
• Pressing the timing chain tensioner rod, turn it clockwise
with a blade screwdriver.
b. Remove the screwdriver and slowly release the timing chain
tensioner rod "1" until stop. (see fig. 08)
c. Make sure the timing chain tensioner rod is easily removed from
the timing chain tensioner slot.
If the movement is irregular, replace the chain tensioner.
1. Timing chain roller
2. Camshaft sprocket
a.
Slightly press with your hands the timing chain tensioner rod in
the tensioner slot.