Volvo EPA2007 D13F - Piston and Connecting Rods

86ENGINECOMPONENTANDLOCATION
PistonandConnectingRods
W2033314
1.PistonRingSet5.UpperandLowerConnectingRod
Bearings
2.Piston6.ConnectingRodBearingCap
3.WristPin7.PistonCoolingNozzle
4.ConnectingRod8.AssemblyMatchingMarks
Connectingrodsareforgedsteelandareusedincombinationwithone-piece
Monosteelsteelpistons.ThebearingcapsareattachedwithfourM12capscrews
spacedtopreventmisalignment.Therodsandcapsaremadebya"fracture"
processthatrequiresacapbeassembledwithitsoriginalrod.Neverattempttouse
mismatchedrodsandcaps.
Thepistonisttedwiththreerings.Inthetopgrooveisacompressionringwitha
"keystone"crosssection.Inthesecondgroove,thecompressionringhasarectangular
crosssection.Inthethirdgrooveisaspring-loadedoilscraperring.