I have some tuff turns to make coming off the new engine and into the waterlock. It would certainly be easier to use 1 1/2? Galvanized 90's or 45's coupled with a few nipples to make those turns. Does anyone see any propblems with using pipe. There was pipe there from the prior motor, it looked old but very little corrosion?
- Status
I would use what they call black pipe. You might have a problen with the exaust temp with the Galv pipe. I would hope that you are talking about after the mixing tube...
Black iron/cast iron
I would stay away from galvanized pipe; the pipe is galvanized on the inside too, and the heat and disolved salts can create acids that attack the pipe from the inside. Black iron is better, inasmuch as the zinc is eliminated, and the iron oxide created on the inside of the pipe fitting actually protects to a degree. If cost is not an issue, bronze would be preferable, but the costs can really add up. I used black iron elbows on my h37 exhaust system, and so far, so good.
I would stay away from galvanized pipe; the pipe is galvanized on the inside too, and the heat and disolved salts can create acids that attack the pipe from the inside. Black iron is better, inasmuch as the zinc is eliminated, and the iron oxide created on the inside of the pipe fitting actually protects to a degree. If cost is not an issue, bronze would be preferable, but the costs can really add up. I used black iron elbows on my h37 exhaust system, and so far, so good.
Dave, is that you?
Have you been away? The "avalonduet" caught my attention. I cannot remember the last post that we saw from you. Still on Duet in Catalina from the looks of your new handle. Where do you have black pipe and how is it attached? I assume we are talking about after the mixing elbow. Between there and the muffler?
Have you been away? The "avalonduet" caught my attention. I cannot remember the last post that we saw from you. Still on Duet in Catalina from the looks of your new handle. Where do you have black pipe and how is it attached? I assume we are talking about after the mixing elbow. Between there and the muffler?
Black pipe and no teflon tape
Use high temperature antiseize to seal the threads. Heated teflon is a bad thing to breathe as I am told. My latest mixing elbow is made this way and cost less than $20. I carry spares of each fitting just in case. This elbow does get a little hotter on the outside than the stock one but that may be an advantage.
Use high temperature antiseize to seal the threads. Heated teflon is a bad thing to breathe as I am told. My latest mixing elbow is made this way and cost less than $20. I carry spares of each fitting just in case. This elbow does get a little hotter on the outside than the stock one but that may be an advantage.
Hi Ed, you ol' dog!
Yep...Still bobbin' here in Avalon (get it? aval-on-Duet...).Had to change the handle when I changed ISP's. Being on the hook or on a mooring, wireless service here was just abysmal...at $40 per mo., so bit the bullet and went for the only alternative; Verizon Broadband/National Access. It costs a bunch ($80/mo) but at least I can keep my eye on you buzzards....at broadband speed! I've been watching you guys, and I'm indeed inspired by your ingenious projects. Keep it up. Dave PS. Duet continues to amaze me at the comfort and quality she affords us, her unworthy crew! PPS. I use the black iron to make tight turns after the elbow, especially a high loop in the aft lazarette just before the exhaust exit. If I recall correctly, the 1-1/2" hose fits nicely over 1" fittings....??....1-1/4"???.... Dave
Yep...Still bobbin' here in Avalon (get it? aval-on-Duet...).Had to change the handle when I changed ISP's. Being on the hook or on a mooring, wireless service here was just abysmal...at $40 per mo., so bit the bullet and went for the only alternative; Verizon Broadband/National Access. It costs a bunch ($80/mo) but at least I can keep my eye on you buzzards....at broadband speed! I've been watching you guys, and I'm indeed inspired by your ingenious projects. Keep it up. Dave PS. Duet continues to amaze me at the comfort and quality she affords us, her unworthy crew! PPS. I use the black iron to make tight turns after the elbow, especially a high loop in the aft lazarette just before the exhaust exit. If I recall correctly, the 1-1/2" hose fits nicely over 1" fittings....??....1-1/4"???.... Dave
Hi Ed (and Others, of course).............
I don't know what happened to my original response to this thread, nor my grizzled :{ reply to your kind inquiry. Anyway, I used black iron pipe and couplings for my 1-1/2" exhaust line, especially in tight corners, like the loop up inside the aft lazarette. Used pipe clamps for the hose connections. It seems to hold up well; I used common antisieze for the threaded joints. Your kind inquiry: Yeah, it's me, and yeah, we're still bobbin' on a mooring here in Avalon (read: Paradise) during most of the year, but in the Summertime, it gets pretty crowded hedre in the Harbor, so we go up-island to one of the quieter coves to anchor in peace and quiet. I'm not driving the tour bus any longer, got myself set up here doing my real work; general contracting. I've been here long enough now that the local folks know and trust me, and the word-of-mouth has gotten me more work than I can handle. Yikes! Too much? No, just right! I'll bet you're gonna have a great summer, and here's to Fair Winds to you all. Dave
I don't know what happened to my original response to this thread, nor my grizzled :{ reply to your kind inquiry. Anyway, I used black iron pipe and couplings for my 1-1/2" exhaust line, especially in tight corners, like the loop up inside the aft lazarette. Used pipe clamps for the hose connections. It seems to hold up well; I used common antisieze for the threaded joints. Your kind inquiry: Yeah, it's me, and yeah, we're still bobbin' on a mooring here in Avalon (read: Paradise) during most of the year, but in the Summertime, it gets pretty crowded hedre in the Harbor, so we go up-island to one of the quieter coves to anchor in peace and quiet. I'm not driving the tour bus any longer, got myself set up here doing my real work; general contracting. I've been here long enough now that the local folks know and trust me, and the word-of-mouth has gotten me more work than I can handle. Yikes! Too much? No, just right! I'll bet you're gonna have a great summer, and here's to Fair Winds to you all. Dave
- Status