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Old 08-12-2017, 05:37 PM   #21
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Greetings,
Mr. PM. Given the pipe is before the water injection, I fear, #14 is your only option unless you can find a heat/fireproof coupling. Dang! So close...

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Old 08-13-2017, 06:51 AM   #22
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Another issue that kept me awake last night . I don't have enough room to turn the new 90 degree elbow because of a deck beam . Can I use a union here ? It would before the elbow .
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Old 08-13-2017, 07:55 AM   #23
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Yes, you can use an iron or steel union. Just wrap it with insulation as it will not be cooled. 2" fiberglass tape will work as insul.

Another option is to put a 90deg elbow on outlet pipe, then a short nipple, then screw on mixer. It will rotate in a different plane and you might have clearance there.

Worst case would be to unbolt the manifold from cylinder head and then you can screw on the mixer on the bench.
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Old 08-13-2017, 07:58 AM   #24
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Greetings,
Mr. PM. Union? Now you're back to where you started trying to get that bent section of pipe out...I know there's a heat proof coupling out there. I just don't know what to call it or where to find it. Surely a member with industrial experience can say...."This is what will work". Alas, it's not me....
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Old 08-13-2017, 09:16 AM   #25
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There certainly are bolted, flanged connections for exhaust systems. The Perkins 6.354's and the Northern Lights genset have exhaust elbows bolted to the heat exchanger so bolts and gaskets are doable.

It's cheaper for the mfr to thread the exhaust elbow to a pipe nipple and then to the heat exchanger, and gives the installer flexibility to mount the exhaust system in various ways. My Yanmar 3GM30 in the sailboat had the exhaust elbow mounted well above the engine since the engine was so low within the boat. (My nipple broke and I had to peel the remains out of the elbow.)

I fear you'd be hard pressed to have a flange welded to your broken pipe nipple while in the boat, and you said the nipple was in poor shape.

To get room to work, can you not unbolt the genset from its mounting and turn it in place? (Our genset sits on a flat plywood base and it would be possible to turn it.)
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Old 08-13-2017, 01:07 PM   #26
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I've got about 5 hrs in this piece of pipe , but it's out now and I can fix it right .
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Old 08-13-2017, 03:52 PM   #27
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Beer time!
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Old 08-13-2017, 04:19 PM   #28
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Dang! Sometimes we kick butt....sometimes we get our butts kicked.

Either way, it beats not having a boat! Nice work! You're halfway there.

Cheers!
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Old 08-13-2017, 04:29 PM   #29
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Well done. Take the rest of the day off.
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Old 08-14-2017, 02:59 PM   #30
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1. Pipe wrench
2. PB blaster
3. Pipe wrench with 2ft cheater pipe
4. Sawzall (cut off pipe and cut two grooves in pipe)
5 . Cold chisel and 4 pound persuader ( busted out the piece)
6 . Two crescent wrenches ( one to grip the pipe the other to lock onto the other to bend pipe inwards ) .
7 . Two pairs vice grips one large one small to grip what was left of the pipe and twist it out.
8 . Six pack beer between Joy and I
9 . Filets on grill later with full bottle of La Crema Pinot Noir .
10. Lights out 8:00 pm
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Old 08-14-2017, 03:26 PM   #31
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I bet you slept well!
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Old 08-14-2017, 04:04 PM   #32
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Well done!
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Old 08-14-2017, 04:06 PM   #33
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That La Crema is a pretty darn good bottle of Pinot IMO !
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Old 08-16-2017, 09:03 AM   #34
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Just ordered the Westerbeke parts I needed , mixer elbow, switch, gaskets and zinc. I ordered them through Diesel Specialist in Baton Rouge. Nice guys very helpful and they worked with me on pricing. Just thought I would pass this along .
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Old 08-17-2017, 10:59 AM   #35
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Forgot to add that because of space constraints it took two of us on a sawzall to get this cut out . One above deck and through a hatch ( Joy ) to pull the trigger and me below deck to control the cut. This takes a lot of communication and trust , you know like don't pull that trigger yet !
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Old 08-17-2017, 11:34 AM   #36
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Joy sounds like a trooper!

Will the new part be hard to install?
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Old 08-17-2017, 12:16 PM   #37
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Quote:
Originally Posted by cardude01 View Post
Joy sounds like a trooper!

Will the new part be hard to install?
Yes she is . Always ready to help and I'm too cheap to pay anybody.
It 's always harder to put back together than you think, but if I have the room I'm going to add a union between the exhaust pipe and water injection elbow.I don't have room to rotate the new elbow. I broke apart the cracked elbow and took it out in pieces.
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Old 08-24-2017, 09:02 PM   #38
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Starting putting this back together yesterday after work. Worked on it again today after work. Man this has been a real PITA. All that's left to do is install the muffler hose , the hose from heat exchanger to elbow and add coolent . The older I get the tougher this stuff is to do. When I can't do the work anymore I'll have to sell it .
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Old 08-27-2017, 09:55 PM   #39
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Finally finished this up today .New water injection elbow , new exhaust piping to the elbow , new 2" wet exhaust hose from injection elbow to muffler, new 7/8" wet exhaust hose from heat exchanger to elbow , all new clamps and temperature switch. Total for parts plus odds and ends $425
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Old 08-28-2017, 07:15 AM   #40
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What helps the pain is when you think about what a project like this would have cost if it was hired out.
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