Husqvarna SM 610 2006 Workshop Manual page 84

E N G IN E O V E R H A U L IN G
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C a m ro lle r re p la ce m e n t
R e p la c e th e ca m ro lle r if, in c o n se q u en c e o f th e rad ial p la y im -
p ro ve m e n t (th e n e ed le b ea rin g p in is w o rn ), th e valve p la y exce e d
0 .0 0 6 -0 .0 0 8 in ., b o th fo r th e in ta ke a n d e xh a u s t s id e s.
T h e p in o n th e n ew roll be arin g a ssure s th e ro ll co nta ct w ith th e rin g an d
m a ke s e a sie r th e p in insertion d urin g assem b ly. H old the ro ller w ith n ee dles
in p la ce in th e ro cke r arm an d m o u n t the ro lle r sh a ft. U se a vise. B e ca refu l
so th a t th e ro cke r a rm isn t d am a g ed . L ock th e cam roller sh aft w ith a ce nte r
p u n ch fro m e a ch sid e.
C a m s h a ft
C h e ck th a t ca m surfa ces a re score d, ste p pe d, gro ove d etc. E xce ssive ly w o rn
ca m s a re o fte n th e cau se of ba d e ng in e tim ing thu s red ucin g en gine po w er.
In se rt th e ca m sh a ft be tw ee n tw o refe ren ces a nd th en ch eck d eviation u sing
tw o co m p a ra to rs. W ea r lim it: 0 .00 39 in .
- M e a su re th e cam he ig ht H w ith a m icro m ete r.
- H (n e w )= 1 .3 1 5 in . fo r th e intake; 1.3 07 in . fo r th e e xh a ust.
- W e a r lim it: 1 .3 0 3 in . fo r th e intak e ; 1 .29 5 in. fo r th e e xh a ust.
S : E X H A U S T
A : IN T A K E