Last week, heading out of the marina, the cabin started to fill with exhaust. Turns out the mixing elbow cracked (just a matter of time). Anyway, the pipe was easy enough to remove and I have a few questions about fabricating a new one. I've read in the archive that quite a few folks just use pipe fittings to replace their elbow. Mine apparently was also replaced by the previous owner by just using pipe fittings. My question is concerning the shape of the elbow. My Catalina manual shows the pipe as a high rise elbow, meaning it exits the manifold, makes a 90 degree turn up then a 90 degree turn aft followd by a 90 degree turn down and finally a 90 degree turn aft and exhaust hose out to the transom. In my application, I basically had just a few 45 degree fittings and a few straight fittings and the general direction of the pipe from the exhaust manifold was sloping downward to a short section of exhaust hose. The short section of hose was attached to a waterlock (see link to picture of a waterlock I found on the net). From the waterlock the exhaust hose ran to the transom. Questions: Does anyone know the best shape for this exhaust elbow? Does the water lock eliminate the need for a high rise elbow? Does anyone have any general suggestions regarding changing a mixing elbow? Thanks!
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MIxing Elbow
I would keep to the highrise design to keep seawater out of the engine. I suggest you contact Torresen Marine (231-759-8596)for a stainless steel replacement. I think they run under $200 should last for many years. Exhaust leaks in the cabin could be dangerous.
I would keep to the highrise design to keep seawater out of the engine. I suggest you contact Torresen Marine (231-759-8596)for a stainless steel replacement. I think they run under $200 should last for many years. Exhaust leaks in the cabin could be dangerous.
Exhaust Riser
Don's right about the price - $165 last year, and includes insulation. You'll need to buy a new flange gasket. Buying from Catalina obviates the issue about the shape, but that's not the story. Even if the new riser was lower, it wouldn't matter because the water comes in from the riser into the nipple and that hose should have a vented loop to avoid the water entering when the engine's off. When the engine's running, the exhaust riser is putting out the hot gas into the muffler anyway. Call Catalina and buy the new riser from them. Stu
Don's right about the price - $165 last year, and includes insulation. You'll need to buy a new flange gasket. Buying from Catalina obviates the issue about the shape, but that's not the story. Even if the new riser was lower, it wouldn't matter because the water comes in from the riser into the nipple and that hose should have a vented loop to avoid the water entering when the engine's off. When the engine's running, the exhaust riser is putting out the hot gas into the muffler anyway. Call Catalina and buy the new riser from them. Stu
Stu, Catalina or Catalina Direct?
I've ordered items from Catalina Direct before but not from Catalina (I assume the factory, right?). Do you happen to have the number handy for Catalina? Thanks for the advise. BTW Stu, do you have a job or do you just moderate this board for a living?
I think you replied to almost everyone of my posts here! Many thanks again!
I've ordered items from Catalina Direct before but not from Catalina (I assume the factory, right?). Do you happen to have the number handy for Catalina? Thanks for the advise. BTW Stu, do you have a job or do you just moderate this board for a living?
I think you replied to almost everyone of my posts here! Many thanks again!
try www.catalinayachts.com
the phone # is there. Yes, Greg, I do have a job (darn it!). I'm a building systems integration specialist in private practice and I love boats. I'm the secretary of the C34 International Association and spent so much of my own time trying to figure things out when we first bought Aquavite in 1998, I like to try to help other folks out and point them in the right direction. I'm also active on the C34 'site and lurk on the C25 site because I had #2459, a 1981 SRFK for 12 years before we got our C34. Before that was a C22. I keep reminding people of the Association websites, and the fact that C30s, C34s and C36s are very similar in systems. So, I read all of Mainsheet, and refer folks to the Association sites. Electrical systems are the same for all boats and have many variations. Lotsa your own reading is required on that subject. You can get to some of the Association links directly on this board under the Owner Directory Tab on the main page. I just found that yesterday and I've been here for 6 1/2 years! Fair Winds, Stu PS ...sometimes I get cranky, so Fred, Trevor and the rest of the gang straighten me out...
the phone # is there. Yes, Greg, I do have a job (darn it!). I'm a building systems integration specialist in private practice and I love boats. I'm the secretary of the C34 International Association and spent so much of my own time trying to figure things out when we first bought Aquavite in 1998, I like to try to help other folks out and point them in the right direction. I'm also active on the C34 'site and lurk on the C25 site because I had #2459, a 1981 SRFK for 12 years before we got our C34. Before that was a C22. I keep reminding people of the Association websites, and the fact that C30s, C34s and C36s are very similar in systems. So, I read all of Mainsheet, and refer folks to the Association sites. Electrical systems are the same for all boats and have many variations. Lotsa your own reading is required on that subject. You can get to some of the Association links directly on this board under the Owner Directory Tab on the main page. I just found that yesterday and I've been here for 6 1/2 years! Fair Winds, Stu PS ...sometimes I get cranky, so Fred, Trevor and the rest of the gang straighten me out...
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