Arctic Cat 400 Service Manual page 275

1. Remove the secondary driven output shaft
assembly from the left-side crankcase half.
2. Clean the secondary driven bevel gear teeth of
old oil and grease residue.
3. Apply a thin, even coat of a machinist-layout
dye to several teeth of the gear.
4. Install the secondary driven output shaft assem-
bly.
5. Rotate the secondary driven bevel gear several
revolutions in both directions.
6. Examine the tooth contact pattern in the dye and
compare the pattern to the illustrations.
Back
ATV-0103
ATV-0105
ATV-0104
Back to TOC
Correcting Tooth Contact
NOTE: If tooth contact pattern is comparable to
the correct pattern illustration, no correction is
necessary.
1. If tooth contact pattern is comparable to an
incorrect pattern, correct tooth contact according
to the following chart.
Tooth Contact
Contacts at Top
Contacts at Root
NOTE: To correct tooth contact, steps 1 and 2
(with NOTE) of "Correcting Backlash" must be fol-
lowed and the above "Tooth Contact/Shim Correc-
tion" chart must be consulted.
! CAUTION
After correcting tooth contact, backlash must again
be checked and corrected (if necessary). Continue
the correcting backlash/correcting tooth contact
procedures until they are both within tolerance val-
ues.
CRANKSHAFT ASSEMBLY
Measuring Connecting Rod
(Small End Inside Diameter)
1. Insert a snap gauge into the upper connecting
rod small end bore; then remove the gauge and
measure it with micrometer.
2. Maximum diameter must not exceed specifica-
tions.
Measuring Connecting Rod
(Small End Deflection)
1. Place the crankshaft on a set of V-blocks and
mount a dial indicator and base on the surface
plate. Position the indicator contact point against
the center of the connecting rod small end jour-
nal.
Back to Section TOC
Shim Correction
Decrease Shim Thickness
Increase Shim Thickness
CC290D
Next
3-231
3