Status Report on SD/I Saltwater Test Program NMMA/EPA Meeting January 24, 2006.
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Transcript of Status Report on SD/I Saltwater Test Program NMMA/EPA Meeting January 24, 2006.
Status Report on SD/I Saltwater Test Program
NMMA/EPA Meeting
January 24, 2006
• Status of program– Short of targeted hours of operation– Issues with exhaust manifolds on two of the
three boats– Additional funding needed
• Planned next steps– Resolution of issues– Continued testing
Overview
Maxum
Malibu
Sea Ray
No emission data taken on in-use engines
21 ft sterndrive4.3 L V637 hours accumulatedNo apparent problems
19 ft inboard straight-drive5.7 L V8100 hours accumulatedWater leaks at thermocouples upstream of catalyst
22 ft sterndrive5.7 L V8OBD-M system55 hours accumulatedCatalyst positioned too close to water mixing point
Status Summary
Maxum
Catalyst location close to engine (away from water mixing point)
No visible deterioration of catalysts
PPM testing shows good test results
Next Steps: Continue to operate in existing configuration
Next Steps: Replace parts of manifold that have developed risks of leaks Keep same manifold design
(except no through-jacket thermocouples upstream of catalysts) Put boat back in service with new catalysts
Malibu Water leaks at thermocouple fittings upstream of catalysts
Damage through the catalyst
inlet
exit
Sea Ray
Next Steps: Redesign manifold to move catalysts closer to engine/add baffles Put boat back in service with new catalysts/manifolds
Catalysts very close to water mixing point
Oxygen sensor still operational
Salt deposits on catalyst exit
inlet
exit
Planned Next Steps• Rebuild manifolds for Malibu and Sea Ray
– Modify catalyst location on Sea Ray– Re-baseline emissions– Begin operation from zero hours
• Continue operation with Texas Parks & Wildlife– Boating season coming up soon– Evaluate hour accumulation at end of season
• Other modifications– Better maintenance of engines (flushing)– Modify thermostat housings
• Work out funding for additional operation