As part of my Winter refit
, I removed the Wet Exhaust
. It is made (according to the survey) of copper tubing, approx. 2 1/2" OD.
It came out in 2 pieces. The first piece consists of: 1. a nipple connecting the manifold mounting flange to the water elbow
; 2. The water Elbow
, which descends at 45Degrees and has an 1 1/2" nipple for the water injection; 3. A 90 degree elbow to Strb and a 28" run to the outboard
bottom of the cockpit
locker; 4. Another elbow, with a 30" run to the top of the locker; and 4. A an elbow turning aft with a 12" run to a threaded union. The second piece is: 1. A threaded union that connects to the first piece and a 24" run to; 2.the muffler
, which has a nipple on its aft end for a flexible hose to the thru hull
There are 2 other 1 1/2" nipples, one on each side of the union, which leads me to believe there is an interior
water jacket and water doesn't mix with the gasses until they all reach the muffler
My problem is that all the bends and tubing are welded together, which prevents me from cleaning
the accumulated soot inside or inspecting the water jacket. Looking through the ends of each piece with a flashlight, I notice a considerable accumulation of soot.
Does anyone know of a solution I could pour into these two pieces that would dissolve the soot, without damaging the copper? What about corrosion
in the water jacket?
Any response would be welcome. Time is getting short! Thanks