Husqvarna SM 610 2006 Workshop Manual page 82

E N G IN E O V E R H A U L IN G
8
V a lve s p rin g
C h e ck th e fre e le n g th "L ". If th is d o e s n o t co rre sp o n d to th e p re scrib e d lim its th e n
su b stitu te th e sp rin g s.
In te rn a l sp rin g : L = 1 .4 4 in . - W e a r lim it: 1 .3 4 in .
E xte rn a l sp rin g : L = 1 .7 0 in . - W e a r lim it: 1 .6 5 in .
If it is n e c e s s a ry to c h a n g e o n e o f th e s p rin g s th e n a ll th e o th e r s p rin g s
s h o u ld a ls o b e c h a n g e d .
V alve spring orthogo na lity che ck.
T he m ax. obliq uity is 0.06 in for side.
In s ta lla tio n o f va lve s
L u b rica te th e va lve g u id e s a n d va lve ste m w ith e n g in e o il w h e n th e va lve is
in sta lle d .
In sta ll th e se a l rin g , th e sp rin g s a n d th e cu p .
U se to o l co d e n o . 8 0 0 0 3 9 5 2 1 to co m p re ss th e va lve sp rin g s a n d ca n in sta ll h a lve s
co n e s.
D o n o t c o m p re s s th e va lve s p rin g s m o re th a n n e c e s s a ry. D o n o t
d a m a g e th e c ylin d e r h e a d .
T a p g e n tly o n th e va lve ste m w ith a p la stic h a m m e r to m a ke th e co tte rs se a t.
H it s tra ig h t o n th e to p o f th e va lve s te m s o th a t th e va lve s te m
d o e s n t g e t o u t o f tru e .