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What Length couplers did you use?
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Originally Posted by class6
(Post 4498996)
What Length couplers did you use?
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Originally Posted by 90profx
(Post 4498990)
Excellent idea, thanks for the tag to the other linked page. I'm still in the concept stage wanting to stay dry "ALL" the way to the end of the tail pipe. I've done a little lay out work where water will feed into the riser but the stock riser water exits would be welded closed. Add a nipple at the top of the riser to have water exit into the tail pipe. Now here's where it gets interesting. The tail pipe: 4" OD SST w/a 3 1/2" ID SST exhaust pipe. What I'm saying here is, its a "TUBE INSIDE A TUBE", welded together (water tight) water dump holes at the end of the tails. Water from the blocked off riser would be fed into a bung welded onto the front section of the tail pipe filling the air space between the two pipes, Silicone coupler to secure tail pipe to riser,.
I'm always open for opinions/thoughts/second guesses etc, etc...................... http://i177.photobucket.com/albums/w...m.jpg~original http://i177.photobucket.com/albums/w...q.jpg~original http://i177.photobucket.com/albums/w...h.jpg~original http://www.offshoreonly.com/forums/g...sor-bungs.html |
Thanks for the link..............I'm very familiar with welding bungs in all sorts of headers, steel and stainless, have done countless bungs. In this case it make sense to weld in the bung prior to having the inner exh tube already welded to the outer tube (closed chamber). This closed chamber would require a gas fill of the internal space (water chamber) while welding the bung to the exterior to ensure a 100% leak proof quality weld.
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Ok, new project while I'm waiting to finish up my Dry Exhaust Mod Project........Transom LED's that'll light up a football field for under $100 (providing you have the ability to machine some aluminum or have a buddy to do it for you). Requires 3 1/2" OD 6061-T6 Round Alum. Bar Stk., some 1/2" aluminum round stk., Ebay 100W LED Chips (color of your choice), 2 12V DC Boost Converters and some wire, Silicone High Temp "O" Rings, Stainless Steel screws and two Ebay 78mm Collimator Lens. I didn't think of mentioning this till after I was done, so I apologize I didn't take pics as I went, but you'll get the idea and I'll try to explain in details in a follow up post if your interested, post up and if there's enough interest I'll put something together.
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A couple of preview pics:
http://i177.photobucket.com/albums/w...b.jpg~original http://i177.photobucket.com/albums/w...k.jpg~original |
MOVING ON: NEXT MOD TO MAKE WINTER GO BY FASTER:
DIY DRY EXHAUST PIPES ON A BUDGET I've already started to assemble the parts and will follow up with details and photos, check back next week as I'll start to take some pics and post'em up !!!!! By the way, LED project is done and on the boat.....BRIGHT AS HELL !!!!!!!!!!!!!!!! I'll follow up with some in water pics this spring. |
Ok folks......................here we go.......................
4" OD & 3 1/2" OD Pipes cut to length: http://i177.photobucket.com/albums/w...l.jpg~original http://i177.photobucket.com/albums/w...e.jpg~original 3 1/2" OD Pipe Flared on both ends: http://i177.photobucket.com/albums/w...x.jpg~original http://i177.photobucket.com/albums/w...v.jpg~original http://i177.photobucket.com/albums/w...e.jpg~original http://i177.photobucket.com/albums/w...v.jpg~original Aft end water exits, top opening is calculated to the exact same size/surface area as to OEM Riser opening, same with the bottom drain: http://i177.photobucket.com/albums/w...b.jpg~original FWD Riser end, I'll need to flare out this end a little more to eliminate the slight gap showing at the top (easier to weld up): http://i177.photobucket.com/albums/w...c.jpg~original Water transfer elbow from OEM Riser to Tail Pipe elbow shown with weld positioning fixture: http://i177.photobucket.com/albums/w...b.jpg~original http://i177.photobucket.com/albums/w...p.jpg~original http://i177.photobucket.com/albums/w...5.jpg~original Elbows are fish mouthed cut w/2" radius for a tight fit on the Risers & Tail Pipes: http://i177.photobucket.com/albums/w...b.jpg~original Stay tuned more to come as time allows.................... |
I pick up the 2 project donor OEM Risers I bought off eBay Monday from chemical striping of the coated material, then mod those to Tig weld on a stainless elbow for water discharge connection to the tail pipe. Risers will be powder coated metallic purple, easier than polishing when they're completed....:cool:...., new exhaust riser flange gaskets showed up to day as well. Pics forth coming upon progress made.
I welcome any and all comments you may have on this exhaust mod project................... |
Originally Posted by 90profx
(Post 4525978)
I pick up the 2 project donor OEM Risers I bought off eBay Monday from chemical striping of the coated material, then mod those to Tig weld on a stainless elbow for water discharge connection to the tail pipe. Risers will be powder coated metallic purple, easier than polishing when they're completed....:cool:...., new exhaust riser flange gaskets showed up to day as well. Pics forth coming upon progress made.
I welcome any and all comments you may have on this exhaust mod project................... |
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