Volvo Penta 2002 - Connect I Ng R Ods

Pi st ons, cyl i nder s
21 . Check t he wear on pi st ons, pi st on r i ngs and gudgeon
pi ns . Repl ace t hese i f necessar y .
Use a
cyl i nder
i ndi cat or
gauge t o measur e t he cyl i nder bor es . The measur ement of
t he
bi ggest wear i s made i mmedi at el y beneat h t he edge of
t he upper dead cent er and cr osswi se t he engi ne
.
The
mea
sur ement of t he smal l est wear i s made at t he l ower dead
cent er . As t o t he cyl i nder di amet er , see " Techni cal
Dat a" .
Use a mi cr omet er t o measur e t he pi st ons . Pi st on di amet er ,
see under " Techni cal Dat a" .
22 . I nser t a new pi st on r i ng i nt o t he cyl i nder and
measur e
t he pi st on r i ng
gap . As t o t he measur ement , see under
" Techni cal Dat a" . I f necessar y i ncr ease t he
gap,
usi ng
a
speci al f i l e .
23
.
Measur e t he cl ear ance of t he pi st on r i ngs i n t he
pi st on
r i ng gr ooves . Regar di ng
t he measur ement ,
see under
" Techni cal Dat a" .
24 .
Use pi st on
r i ng pl i er s
t o i nst al l t he pi st on r i ngs . The
mar ki ng of t he r i ngs ( TOP or t he mar k of t he
manuf act ur er )
must
be
t ur ned
upwar ds . The hei ght of t he upper com
pr essi on r i ng : 1, 75 mm ( . 068898 i n . ) The hei ght
of t he
l ower compr essi on r i ng ;
2, 00 mm ( . 07874 i n . ) . Tur n t he
pi st on r i ngs so t hat t he gaps ar e t ur ned 120
° f r om each
ot her.
Connect i ng
r ods
25 . Check t he connect i ng r ods f or
st r ai ght ness and
t wi st i ng
.
ProCarManuals.com