Crankshaft Servicing; Checking Side Clearance Of Ring In Groove; Checking Connecting Rod Alignment; Checking Crankshaft Alignment - Kubota D1102-B Workshop Manual

C019 F055
C019 F056
COJ 9 F057
0
Checking Side Clearance of R ing in Groove
1) Remove the piston ri ng from the piston.
Place the ri ng i n its groove as is shown at lef t, and measu re
2)
the cleara nce.
I f the measu rement is not wi th i n the reference val ue,
3)
replace the ri ng.
( Note)
• As the top ring is a keyston type, it cannot be measured
by this method.

() Checking Connecting Rod Alignment

Remove the connecti ng rod crank pi n metal and tighten
1)
the rod bol t.
Attach the connecti ng rod to the con necti ng rod al igner.
2)
Place the ga uge on the piston pi n.
3)
Measu re the ga p between the pi n of the gauge and the f lat
su rface of the a igner.
I
4) If the measurement exceeds the a l lowa bl e l i m it, replace
the rod.
( I m portant)
• Because the inside diameter· of the connecting rod small-
end bushing is used as the basis, check carefully
worn or not.
0

Checking Crankshaft Alignment

1) Place V-blocks on a su rface plate, and put either end of
the jou rnal on them.
2) Set a d ial gauge on the center journal .
3) R ead the d ia l ga uge wh i le rotati ng the cra nkshaf t slowly.
Cra n kshaf t flexure is i nd icated
4) If the read i ng exceeds the al lowa ble l i mit, replace the
era nkshaf t.
63
if
it
0.02
mm
··
0.05
mm
ha lf of the read i ng.
by
KiSC issued 09, 2007 A
is
--t