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Volvo Penta MD22 User Manual

Volvo Penta MD22
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39
Piston and connecting rod
Piston rings, replacement
(13A-04)
Remove the piston rings with an appropriate piston
ring pliers Separate the ring gap just sufficiently
that the ring ends do not damage the piston. Keep
the rings together with the relevant piston.
Install the piston rings with an appropriate piston
ring pliers Separate the ring gap just sufficiently
that the ring ends do not damage the piston.
1
3
Insert the expander ring for the oil scraper ring in
the lower piston ring groove with the catch through
both end of the rings (A). Install the oil scraper ring
over the spring (B). Ensure that the ring gap is lo-
cated with a 180° offset to the catch.
2
Install the cast iron rings with the conical surface in
the second piston ring groove with the word “TOP”
or the manufacturers symbol towards the top. The
new piston rings have a green identification mark.
This must lie to the left of the ring gap when the ring
is installed and the piston is raised.
Install the “barrel face” ring with the molybdenum in-
sert in the upper piston ring groove (TMD22P,
TAMD22 Keystone ring). The word “TOP”, the man-
ufacturers mark or the internal milling must face the
top of the piston. The new piston rings have a red
identification mark. This must lie to the left of the
ring gap when the ring is installed and the piston is
raised.
4
Ensure that the ring gaps are offset 120° internally.
MD22L, MD22, TMD22
TMD22P, TAMD22

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Volvo Penta MD22 Specifications

General IconGeneral
BrandVolvo Penta
ModelMD22
CategoryEngine
LanguageEnglish

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