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RUBBER VALVE 330273
Description
Function and Technical Context
The valve seal is the sealing element responsible for properly sealing the valve stem in two-stroke outboard engines with a loop-charged scavenging chamber, preventing the leakage of combustion gases and the uncontrolled flow of fuel-air mixture between the crankcase and the transfer port. It operates within the engine’s gas distribution and fuel supply system, acting as a flexible barrier between the pressure and vacuum zones generated during each power stroke. When this rubber deteriorates, hardens, or loses elasticity, the engine may experience loss of compression, starting difficulties, and irregular fuel consumption, compromising overall propulsion performance. Its proper installation is essential to maintain the volumetric efficiency characteristic of Johnson and Evinrude V4 and V6 loop-charged engines.
When should this part be replaced?
The most common symptoms indicating valve rubber wear include difficult cold starts, unstable idle, noticeable power loss under full load, and the presence of blue smoke or irregularities in the exhaust gas mixture. It is recommended to inspect and replace this component during every seasonal service or whenever the valve assembly is disassembled during major maintenance, as the rubber degrades with thermal cycles even if there is no visible breakage. Replacing this seal as a preventive measure whenever the engine is opened prevents more costly secondary failures and ensures the system’s tightness on every trip out to sea.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| CE275 | CE275TLCDC 1986, CE275TLCOS 1985, CE275TXCDC 1986, CE275TXCOS 1985 |
| CE300 | CE300TLCDC 1986, CE300TLCOS 1985, CE300TXCDC 1986, CE300TXCOS 1985 |
| CJ275 | CJ275TLCDC 1986, CJ275TLCOS 1985, CJ275TXCDC 1986, CJ275TXCOS 1985 |
| CJ300 | CJ300TLCDC 1986, CJ300TLCOS 1985, CJ300TXCDC 1986, CJ300TXCOS 1985 |
| E60 | E60ELCEA 1989, E60ELESM 1990, E60TLCEA 1989, E60TLESM 1990, E60TTLCEA 1989, E60TTLESM 1990 |
| E65 | E65WMLCUA 1987, E65WMLESM 1990, E65WMLZ 1989 |
| E70 | E70ELCCA 1988, E70ELCDC 1986, E70ELCEM 1989, E70ELCUR 1987, E70ELESB 1990, E70TLCCA 1988, E70TLCDC 1986, E70TLCEM 1989, E70TLCUR 1987, E70TLESB 1990 |
| E120 | E120TLCCA 1988, E120TLCDC 1986, E120TLCEM 1989, E120TLCOS 1985, E120TLCUR 1987, E120TLEND 1992, E120TLESB 1990, E120TLETF 1993, E120TLETS 1993, E120TXATF 1993, E120TXATS 1993, E120TXCCA 1988, E120TXCDC 1986, E120TXCEM 1989, E120TXCOS 1985, E120TXCUR 1987, E120TXEND 1992, E120TXESB 1990, E120TXETF 1993, E120TXETS 1993 |
| E125 | E125ESXENR 1992, E125ESXESS 1990, E125ESXETA 1993, E125ESXETF 1993, E125ESXW 1989 |
| E140 | E140CXATF 1993, E140CXATS 1993, E140CXCCS 1988, E140CXCEC 1989, E140CXENM 1992, E140CXESR 1990, E140CXETB 1993, E140CXETF 1993, E140TLATC 1993, E140TLATF 1993, E140TLCCM 1988, E140TLCDC 1986, E140TLCEB 1989, E140TLCOS 1985, E140TLCUA 1987, E140TLENS 1992, E140TLESE 1990, E140TLETC 1993, E140TLETF 1993, E140TXATF 1993, E140TXATS 1993, E140TXCCM 1988, E140TXCDC 1986, E140TXCEB 1989, E140TXCOS 1985, E140TXCUA 1987, E140TXENS 1992, E140TXESE 1990, E140TXETC 1993, E140TXETF 1993 |
| E185 | E185ESXESS 1990, E185ESXW 1989 |
| E200 | E200CXCCR 1988, E200CXCEA 1989, E200CXESM 1990, E200STLCCM 1988, E200STLCDR 1986, E200STLCEB 1989, E200STLCUA 1987, E200STLESE 1990, E200TXCCR 1988, E200TXCDS 1986, E200TXCEA 1989, E200TXCUC 1987, E200TXESM 1990 |
| E225 | E225CLCUB 1987, E225CXCCE 1988, E225CXCED 1989, E225CXCUB 1987, E225CXESS 1990, E225PLCCE 1988, E225PLCED 1989, E225PLCUB 1987, E225PLESS 1990, E225PTLCDA 1986, E225PTXCDA 1986, E225PXCCE 1988, E225PXCED 1989, E225PXCUB 1987, E225PXESS 1990, E225TLCCE 1988, E225TLCDA 1986, E225TLCED 1989, E225TLCUB 1987, E225TLESS 1990, E225TXCCE 1988, E225TXCDA 1986, E225TXCED 1989, E225TXCUB 1987, E225TXESS 1990 |
| E250 | E250CXATF 1993, E250CXATS 1993, E250CXEND 1992, E250CXETF 1993, E250CXETS 1993, E250CZATF 1993, E250CZATS 1993, E250CZEND 1992, E250CZETF 1993, E250CZETS 1993, E250TXATF 1993, E250TXATS 1993, E250TXEND 1992, E250TXETF 1993, E250TXETS 1993, E250TZATF 1993, E250TZATS 1993, E250TZEND 1992, E250TZETF 1993, E250TZETS 1993 |
| E275 | E275CLCUR 1987, E275CXCCA 1988, E275CXCUR 1987, E275PLCCA 1988, E275PLCUR 1987, E275PTLCDC 1986, E275PTXCDC 1986, E275PXCCA 1988, E275PXCUR 1987, E275TLCOS 1985, E275TXCOS 1985 |
| E300 | E300CLCUR 1987, E300CXCCA 1988, E300CXCEM 1989, E300CXCUR 1987, E300CXEND 1992, E300CXESB 1990, E300CXETF 1993, E300CXETS 1993, E300PLCCA 1988, E300PLCEM 1989, E300PLCUR 1987, E300PLEND 1992, E300PLESB 1990, E300PLETF 1993, E300PLETS 1993, E300PXCCA 1988, E300PXCEM 1989, E300PXCUR 1987, E300PXEND 1992, E300PXESB 1990, E300PXETF 1993, E300PXETS 1993, E300TLCDC 1986, E300TLCOS 1985, E300TXCDC 1986, E300TXCOS 1985 |
| J60 | J60ELCEA 1989, J60ELESM 1990, J60TLCEA 1989, J60TLESM 1990, J60TTLCEA 1989, J60TTLESM 1990 |
| J65 | J65WMLCUA 1987, J65WMLESM 1990, J65WMLZ 1989 |
| J70 | J70ELCCA 1988, J70ELCDC 1986, J70ELCEM 1989, J70ELCUR 1987, J70ELESB 1990, J70TLCCA 1988, J70TLCDC 1986, J70TLCEM 1989, J70TLCUR 1987, J70TLESB 1990 |
| J120 | J120TLAEM 1989, J120TLAND 1992, J120TLASB 1990, J120TLATF 1993, J120TLATS 1993, J120TLCCA 1988, J120TLCDC 1986, J120TLCEM 1989, J120TLCOS 1985, J120TLCUR 1987, J120TLEND 1992, J120TLESB 1990, J120TLETF 1993, J120TLETS 1993, J120TXATF 1993, J120TXATS 1993, J120TXCCA 1988, J120TXCDC 1986, J120TXCEM 1989, J120TXCOS 1985, J120TXCUR 1987, J120TXEND 1992, J120TXESB 1990, J120TXETF 1993, J120TXETS 1993 |
| J125 | J125ESXENR 1992, J125ESXESS 1990, J125ESXETA 1993, J125ESXETF 1993, J125ESXW 1989 |
| J140 | J140CXATF 1993, J140CXATS 1993, J140CXCCS 1988, J140CXCEC 1989, J140CXENM 1992, J140CXESR 1990, J140CXETB 1993, J140CXETF 1993, J140TLAEB 1989, J140TLANS 1992, J140TLASE 1990, J140TLATC 1993, J140TLATF 1993, J140TLCCM 1988, J140TLCDC 1986, J140TLCEB 1989, J140TLCOS 1985, J140TLCUA 1987, J140TLENS 1992, J140TLESE 1990, J140TLETC 1993, J140TLETF 1993, J140TXATF 1993, J140TXATS 1993, J140TXCCM 1988, J140TXCDC 1986, J140TXCEB 1989, J140TXCOS 1985, J140TXCUA 1987, J140TXENS 1992, J140TXESE 1990, J140TXETC 1993, J140TXETF 1993 |
| J185 | J185ESXESS 1990, J185ESXW 1989 |
| J200 | J200CXCCR 1988, J200CXCEA 1989, J200CXESM 1990, J200STLACM 1988, J200STLCCM 1988, J200STLCDR 1986, J200STLCEB 1989, J200STLCUA 1987, J200STLESE 1990, J200TXCCR 1988, J200TXCDS 1986, J200TXCEA 1989, J200TXCUC 1987, J200TXESM 1990 |
| J225 | J225CLCUB 1987, J225CXCCE 1988, J225CXCED 1989, J225CXCUB 1987, J225CXESS 1990, J225PLAED 1989, J225PLASS 1990, J225PLCCE 1988, J225PLCED 1989, J225PLCUB 1987, J225PLESS 1990, J225PTLCDA 1986, J225PTXCDA 1986, J225PXCCE 1988, J225PXCED 1989, J225PXCUB 1987, J225PXESS 1990, J225TLAED 1989, J225TLASS 1990, J225TLCCE 1988, J225TLCDA 1986, J225TLCED 1989, J225TLCUB 1987, J225TLESS 1990, J225TXCCE 1988, J225TXCDA 1986, J225TXCED 1989, J225TXCUB 1987, J225TXESS 1990 |
| J250 | J250CXATF 1993, J250CXATS 1993, J250CXEND 1992, J250CXETF 1993, J250CXETS 1993, J250CZATF 1993, J250CZATS 1993, J250CZEND 1992, J250CZETF 1993, J250CZETS 1993, J250TXATF 1993, J250TXATS 1993, J250TXEND 1992, J250TXETF 1993, J250TXETS 1993, J250TZATF 1993, J250TZATS 1993, J250TZEND 1992, J250TZETF 1993, J250TZETS 1993 |
| J275 | J275CLCUR 1987, J275CXCCA 1988, J275CXCUR 1987, J275PLCCA 1988, J275PLCUR 1987, J275PTLCDC 1986, J275PTXCDC 1986, J275PXCCA 1988, J275PXCUR 1987, J275TLCOS 1985, J275TXCOS 1985 |
| J300 | J300CLCUR 1987, J300CXCCA 1988, J300CXCEM 1989, J300CXCUR 1987, J300CXEND 1992, J300CXESB 1990, J300CXETF 1993, J300CXETS 1993, J300PLCCA 1988, J300PLCEM 1989, J300PLCUR 1987, J300PLEND 1992, J300PLESB 1990, J300PLETF 1993, J300PLETS 1993, J300PXCCA 1988, J300PXCEM 1989, J300PXCUR 1987, J300PXEND 1992, J300PXESB 1990, J300PXETF 1993, J300PXETS 1993, J300TLCDC 1986, J300TLCOS 1985, J300TXCDC 1986, J300TXCOS 1985 |
| N65 | N65WMLM 1988 |
| Otros | MISCELLANEOUS 1986, MISCELLANEOUS 1987 |
| T65 | T65WMLM 1988 |
| TE60 | TE60TLCEA 1989, TE60TLESF 1989, TE60TLESF 1990, TE60TLESM 1990 |
| TE70 | TE70TLCEM 1989, TE70TLESB 1990, TE70TLESF 1989, TE70TLESF 1990 |
| TE120 | TE120TXCEM 1989 |
| TE200 | TE200TXCEA 1989 |
| TJ60 | TJ60TLCEA 1989, TJ60TLESF 1989, TJ60TLESF 1990, TJ60TLESM 1990 |
| TJ70 | TJ70TLCEM 1989, TJ70TLESB 1990, TJ70TLESF 1989, TJ70TLESF 1990 |
| TJ120 | TJ120TXCEM 1989 |
| TJ200 | TJ200TXCEA 1989 |
| VE60 | VE60ELESM 1990, VE60TLESM 1990 |
| VE70 | VE70ELESB 1990, VE70TLESB 1990 |
| VE120 | VE120TLEND 1992, VE120TLESB 1990, VE120TLETF 1993, VE120TLETS 1993, VE120TXEND 1992, VE120TXESB 1990, VE120TXETF 1993, VE120TXETS 1993 |
| VE140 | VE140TLENS 1992, VE140TLESE 1990, VE140TLETC 1993, VE140TLETF 1993, VE140TXENS 1992, VE140TXESE 1990, VE140TXETC 1993, VE140TXETF 1993 |
| VE200 | VE200SLESE 1990, VE200TXESM 1990 |
| VE225 | VE225PLESS 1990, VE225PXESS 1990, VE225TLESS 1990, VE225TXESS 1990 |
| VJ60 | VJ60ELESM 1990, VJ60TLESM 1990 |
| VJ70 | VJ70ELESB 1990, VJ70TLESB 1990 |
| VJ120 | VJ120TLAND 1992, VJ120TLASB 1990, VJ120TLATF 1993, VJ120TLATS 1993, VJ120TLEND 1992, VJ120TLESB 1990, VJ120TLETF 1993, VJ120TLETS 1993, VJ120TXEND 1992, VJ120TXESB 1990, VJ120TXETF 1993, VJ120TXETS 1993 |
| VJ140 | VJ140TLANS 1992, VJ140TLASE 1990, VJ140TLENS 1992, VJ140TLESE 1990, VJ140TLETC 1993, VJ140TLETF 1993, VJ140TXENS 1992, VJ140TXESE 1990, VJ140TXETC 1993, VJ140TXETF 1993 |
| VJ200 | VJ200SLESE 1990, VJ200TXESM 1990 |
| VJ225 | VJ225PLESS 1990, VJ225PXESS 1990, VJ225TLASS 1990, VJ225TLESS 1990, VJ225TXESS 1990 |
Equivalent Manufacturer Part Numbers
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury/Mariner/Mercruiser | 878745 |
| OMC | 0330273, 330273 |
Related Johnson/Evinrude Spare Parts
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