Pist O N Ring - Suzuki LT-4WD 1990 Service Manual

PISTON RING FREE END GAP AND
PISTON RING END GAP
Befo re i n sta l l i n g pisto n r i n gs, meas u re the free end
gap of each ri ng usi ng ve rn i e r ca l i pers .
N ext, fit t h e r i n g i n the cy l i n de r, a n d measu re each
ri n g end gap usi n g a th ickness gauge.
I f any ring has a n excess end gap, rep l ace the r i n g .
Pisto n r i n g f ree e n d gap
P iston ring
1 st
2 nd
09900-20 1 0 1
Piston r i n g end gap
P isto n ring
1 st a n d 2nd
09900-20803
OVERSIZE RINGS
•
Oversize p iston r i ngs
The fo l l owi n g two ty pes of ove rsi ze piston r i n gs
a re used . They bea r the fo l l ow i n g identification
n u m b e rs .
Piston r i n g
0 . 5 m m O . S .
1 .0 m m O . S .
•
Oversi z e oil r i ngs
The fo l l owi n g two ty pes of ove rs i ze o i l r i n gs a re
They bear the fo l l ow i n g identificat i o n
used .
ma rks.
S I Z E
Sta ndard
0 . 5 m m O . S.
1 . 0 m m O . S.
•
Overs i z e rai l
J u st mea sure outside d ia m ete r w h i l e ho ld i ng the
I
ra i that has no end gap to id entify the side ra i
as there i s no m a r k o r n u mber o n it .
Se rv i ce Li m i t
6.0 m m (0 .24 i n )
7 . 5 m m ( 0 .30 i n )
Ver n ier ca l per
i s
Se rvice L i m i t
0 . 7 0 m m
(0.028 i n )
T h i c kness g a u ge
1 st
2 n d
50
50
1 00
1 00
MA R K
N I L
Pai nted red
Pai nted ye l l ow
I
0 . 5 mm O . S .
1 . 0 m m O . S .
P a i n t
E N G I N E
3-42
O i l r i n g s p ace r