Volvo Penta 2002 - Page 25

Remove t he packi ng r i ng ( 12) on t he t ur bi ne shaf t and t he
t wo packi ng
r i ngs
( 13) on
t he oi l def l ect or . Cl ean t he par t s
car ef ul l y .
Measur i ng
and I nspect i on
Tur bi ne Wheel
and Shaf t
Unf ast en t he f our scr ews whi ch hol d t he compr essi on
bear i ng ( 8) . Usi ng a smal l copper
mandr el ,
t ap
out t he
compr essi on bear i ng and t he bushi ng ( 9) . Then r emove
t he ci r cl i ps ( 10) i nsi de t he bear i ng
housi ng and r emove t he
t wo bear i ngs ( 11) .
Check t hat t he
t ur bi ne wheel and shaf t ar e f r ee
f r om
mechani cal damage . The vanes must
not be wor n or out of
shape . Do not
t r y t o r eal i gn t he vanes . Damaged
par t s
shoul d
be r epl aced .
Pl ace t he shaf t on t wo suppor t s, whi ch shoul d be under t he
bear i ng r ecesses, and check t he t hr ow at t he end of t he
shaf t . The maxi mum per mi ssi bl e t hr ow i s 0 . 011
mm .
Check t he di amet er of t he shaf t bear i ng r ecesses . The
mi ni mum per mi ssi bl e di amet er
i s 7 . 98
mm
.
Check t he wi dt h of
t he shaf t pi st on r i ng gr oove .
Maxi mum per mi ssi bl e wi dt h
i s 1 . 29 mm .
Compr essor Housi ng, Tur bi ne Housi ng
Check t hat t he housi ngs ar e f r ee f r om cr acks or ot her
damage caused by excessi ve wear
and
t ear
.
Damaged par t s
shoul d be r epl aced .
Heat Shi el d
Check t hat t he heat shi el d i s f r ee f r om damage caused by
wear and t ear , heat or cor r osi on, and r epl ace i t i f necessar y
.
Bushi ng, Oi l Def l ect or , Compr essor
Bear i ng
Check t hat t he
par t s ar e f r ee f r om wear and t ear and
di scol our at i on . Damaged par t s shoul d be r epl aced even
i f t he
amount of
wear and t ear i s wi t hi n t he per mi t t ed
t ol er ances .
Bushi ng
Oi l
Def l ect or
Bear i ngs
Check measur ement ( A) , whi ch shoul d not be l ess
t han
4 . 07 mm .
Check measur ement s
( B) and ( C) . ( B) shoul d not be mor e
t han 1 . 31
mm, ( C) shoul d not be mor e t han 1 . 11 mm .
Compr essor Bear i ng
Check t he
wi dt h
of
t he bear i ng, and r epl ace i t i f t he amount
of wear and t ear i s i n excess of t he per mi t t ed t ol er ance
.
Mi ni mum per mi ssi bl e wi dt h i s 3 . 98 mm .
Check t he bear i ngs f or abnor mal wear
and t ear or
di scol our at i on, and r epl acet hem wher e necessar y.Check t he
i nt er nal and ext er nal
di amet er s of al l bear i ngs . The ext er nal
di amet er shoul d not be l ess t han
12 . 31 mm, t he i nt er nal
di amet er shoul d
not
be
mor e t han 8 . 04 mm .
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