Page 251 - Peterson 85 Years and Going Strong

engines. Once the new rule is officially released, we’ll probably start seeing a lot more Tier 3 and Tier 4 engine orders.”
EMISSIONS UPGRADE KITS
Under the initial wave of upgrades, Caterpillar de- veloped retrofit kits for their large 3512 and 3516 commercial engines. “The engines in tugs are built so deep inside the boat that it’s almost impossible to do a repower,” explains Barry Kreuzer, Peterson Power’s product support GM. “You have to either cut the side of the boat open or remove part of the deck to gain access. Repowers just weren’t practi- cal.” Instead, Caterpillar came up with emissions retrofit kits (EUG) to overhaul large engines with components from a newer, tier-compliant engine, using the old engine block. No other Cat product has an emissions kit—nor does any other marine engine manufacturer offer one.
To get ahead of the next round of regulations, Pe- terson Power hosted a joint CARB / Bay Area Air Quality Management District (BAAQMD) event in April 2019. It was held at KKMI’s conference room adjacent to Peterson’s dock at Point Rich- mond. “Both CARB and the BAAQMD present- ed their ideas and wanted industry feedback on the revisions they were considering. They’re raising the bar again—going from Tier 2 to Tier 3,” says Kreuzer. “All the big boat owners were there— Starlight, AmNav, Foss, Baydelta. People flew down from Seattle and from all over California to be a part of this event. It was a heads-up meeting where they could influence the new rule and up- date their fleets with Carl Moyer funds, ahead of the new mandate.”
In the months to follow, one of the large tugboat companies in attendance, AmNav, worked with Peterson and Caterpillar to design a new EUG kit for Tier 2 to Tier 3 upgrades. And in June 2020, their Carl Moyer-approved $1.2 million job be- gan. Peterson technicians worked out at the KKMI
AmNav repower converted two 3516 Tier 2 engines to Tier 3 in 2020
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