Hello. In 2 days, I plan to have a mechanic
look at this but I would love to hear your thoughts. After smelling exhaust and then seeing a steady drip (/2sec), I pulled the 2.5" hose that goes 2' from engine to Vetus muffler
. The connection at the mixing elbow was at a difficult angle and I was hoping my reinstall with more bendable hose would improve the seal. However, when I pull it I find that previous owners used a 3" section of 2" hose at the Vetus connection to accommodate the smaller fixture. Not only is this dangerous for fumes, it is a reduction.
What gauge hose your Prima engines use?
Also, I considering asking the mechanic to replace the elbow and manifold which look corroded. This may be another opportunity to use a 2" fixture, but it returns to the question of back pressure. Our boat is 32,000 lbs. so we do not wish to reduce our 49 hp anymore.
What are your thoughts?
/Matt Warren, s/v Tashtego (1983 Lord Nelson)