Quote:
Originally Posted by Bermuda Forte
I understand black iron pipe fittings are the way to go when replacing the elbow. There was a loose connection causing a leak so I’ve pulled it all apart and ‘can see it’s time for a bit of a rebuild. Recommendations? Many thanks, Q |
Funny you mentioned this, I just am in the process of prepping my recently rebuilt
engine for re-installation into my
boat, as part of this I'm inspecting all the supporting
parts for it. I took apart the
exhaust elbow I built five years ago to inspect it, it was built from black iron
parts purchased from the local piping supplier. All the parts are in good shape and should last at least five more.
But, I'm prepping this
boat for an extended
cruise so I'll replace the
salt water injection section for good luck, it's just a 1-1/2 inch X 9 inch nipple with a 3/4" pipe nipple (3/4" X 3") welded into it on a 45 deg angle to accept a 3/4" hose barb for the
raw water discharge. It was previously done with a 1-1/2" tee, a 45deg elbow, a couple close nipples and a 3/4"straight nipple, this worked fine and showed very little
corrosion loss in the 5 years it was used.
A total of about $35.00 in parts, to do the whole assembly, about $12.00 in parts to replace the mixing section, and about 1-1/2 hours
work.
The beauty of using black iron pipe parts for your
exhaust mixing elbow is that you can replace a part that may fail prematurely a piece at a time, without having to wait for an expensive proprietary part that may not ship quickly to the part of the world you happen to be in at that time.
Also, in the world of sacrificial metals, you want the cheapest and easiest parts to be the sacrificial ones.
I'll send a picture of the original assembly tomorrow.
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