Universal 5411 exhaust elbow

[cooltec]

This original 5411 (1982) raw water cooling has A cast ONAN exhaust elbow with engine cooling water port. The elbow has worn through, and looks like it was brazed/welded, but continued to wear through from the inside. Any ideas on part sources or cost effective replacement/repair? The Westerbeke comparable is listed at about $300. Ron

[Gene T]

Don't know about the Universal, but on my Volvo the elbow screwed into a flange on the back of the manifold. I just made one out of galvanized pipe, black pipe would have been better. I assembled the pieces, 4 90s and a 45 elbow and 5 pieces of pipe. I drilled and tapped in to the down pipe at an angle and screwed in a small inlet water pipe, welded or brazed would have been better. Bought some new insulation wrap at a marine parts store. Cost about 30USD and a few hours of fiddling around. Worked great. It's not really complicated, manufactures just cast a part to save time in assembly and the parts are cheap to them.

[JimsCAL]

As Gene describes for his Volvo, my 5411's exhaust was made up of standard 1 1/4 inch iron pipe fittings. I replaced the system about 15 years ago and it is still OK, but looks like its on its last legs. I just bought new black iron fittings at Home Depot for about $20 and will replace it before my cruise in August. Basically just four 90 degree ells, a tee with reducing bushings for the water inlet, and some nipples.