David Cheng
@dcheng · Pacific Northwest · sample member since March 2024
Identity verifiedVerified former ownerMarine engineerFounding contributor
18 years commissioning and servicing MTU and CAT propulsion on 80-130ft motoryachts. I focus on machinery access, serviceability, and honest pre-purchase guidance for owners.
Affiliation disclosure: Independent marine engineer. No sample OEM, dealer, brokerage, or yard affiliation. This contributor is not compensated by any manufacturer.
Experience Reports
Verified firsthand
Six years running a Westport 112 in the Pacific Northwest
Westport 112 · 2015 · published Mar 2024 · revised Jun 2024
Verified firsthandCommissioning notes: MTU 12V4000 raw-water service on early hulls
Westport 112 · engineer report · published Apr 2024
Questions answered
Most usefulWhat should a buyer inspect on an early Westport 112?AnsweredBest practice for the stabilizer service interval?