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06-11-2008, 02:32 PM
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#1
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Established Member
Join Date: Sep 2007
Location: woodbridge
Posts: 10
M.O.C. #7685
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black tank repair
Hello everyone.I have a 2005 3475 Montana that has a black tank leak.Has anybody tried to repair the tank themselves? I removed the bottom and found a crack about three inches long. I would like to repair it myself without replacing it.It looks like a job to get it out.I was thinking of using a airless plastic welder like I used to fix car bumpers with. Do you think I am wasting my time? Should I just replace the tank? Thanks in advance.
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06-11-2008, 02:41 PM
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#2
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Established Member
Join Date: Sep 2007
Location: woodbridge
Posts: 10
M.O.C. #7685
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Im sorry I just saw the same question asked earlier. I think I am going to try it anyway. Got nothing to loose. Thanks again. I am so glad I found this site. The last owner left his sticker on it!
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06-12-2008, 11:26 AM
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#3
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Established Member
Join Date: Mar 2005
Location:
Posts: 12
M.O.C. #3292
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Quote:
quote:Originally posted by muzz
Hello everyone.I have a 2005 3475 Montana that has a black tank leak.Has anybody tried to repair the tank themselves? I removed the bottom and found a crack about three inches long. I would like to repair it myself without replacing it.It looks like a job to get it out.I was thinking of using a airless plastic welder like I used to fix car bumpers with. Do you think I am wasting my time? Should I just replace the tank? Thanks in advance.
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We have a 2005 Montana also and had a leak in the black tank.
Clean it and dry it real good. Use ABS glue and Fiberglass tape and keep putting layers on. We had the leak a couple of years ago- so it is still holding.
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06-12-2008, 11:51 AM
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#4
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Montana Master
Join Date: Nov 2002
Location: Bakersfield
Posts: 5,316
M.O.C. #15
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Muzz,
Welcome to the MOC. We're glad the previous owner left the sticker on so you'd know where to log on.
Why not give the "welder" a shot. If it doesn't work you can always still use the patch. I've not tried the welder yet but have it on hand. I would think it would be at least as strong or even stronger than the patch.
Let us know what you end up trying and good luck.
HamRad
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07-19-2008, 04:24 PM
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#5
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Established Member
Join Date: Sep 2007
Location: woodbridge
Posts: 10
M.O.C. #7685
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I was able to plastic weld the tank after three tries. Polypropelyne plastic is one of the hardest types to repair.I went over the repair with two part epoxy just to be safe.I am going to make a support for the drain pipe because it is a lot of weight pulling down on the tanks. Hopefully I will never have to do this again! Thanks again.
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07-20-2008, 01:46 PM
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#6
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Montana Master
Join Date: Sep 2007
Location: Texas City
Posts: 5,736
M.O.C. #7673
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I have read that there is supposed to be a strap from frame to frame, relieving some of the downward pressure. You may want to do a search on that, or ask Keystone.
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07-20-2008, 02:57 PM
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#7
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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There is no straping.. The tank manufacturer recommends that there be one but Keystone thinks otherwise.
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