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Aluminum repair using Dura Fix brazing rods

Discussion in 'Boating and Boat Rigging' started by jpollman, Aug 17, 2008.

  1. jpollman

    jpollman Premium Member

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    Howdy all!

    Over the years we've had a lot of threads asking about aluminum repair or welding. It's a long story but the other day my tractor engine died because of something I did. It ended up with about a half inch hole in the bottom of the case. I could have bought a new part for $89 plus shipping but I remembered that my step father told me he had some of those Dura Fix aluminum brazing rods. This morning he brought some over and I got to work. It only took me a few minutes to clean up the area and prep it. Then about 10 minutes of work with my acetylene torch and the rods and it looks like I just saved myself at least $100. Here are some pictures of the project.

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    Just thought I'd share my experience with this stuff. It looks pretty good so far and well worth trying if you have an aluminum repair to be done.

    http://www.durafix.com/

    Take care

    John
     
    Last edited: Aug 17, 2008
  2. Priority1

    Priority1

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    Is that an oil sump from a Briggs and Stratton engine??. I had mine off this Spring for a gasket leak. Glad you was able to fix it. I hope you bit the bullet and replaced all the seals.:)
     

  3. jpollman

    jpollman Premium Member

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    Yep it's a B&S 18.5 Intek. I'll be going out today and either picking up or ordering new gaskets and a lower seal. It won't take too long to put back together and see how it runs. Once I know it runs I'll order a new clutch and be ready for the fall leave cleanup which is right around the corner.

    John
     
  4. Priority1

    Priority1

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    It looks good, but before putting it back together put some gasoline in the sump and make sure it doesn't leak out near the repair. It would be a bummer to get it back together and find it leaks oil.:) I saw the ads for the aluminum brazing rod before, but never knew anyone that tried it. I may get some. I have an aluminum boat, props, etc. etc. Thanks for posting this.
     
  5. jpollman

    jpollman Premium Member

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    It worked!

    Yesterday morning I looked over the repair very closely and it looked good. It would probably have been fine to just put it back together and call it good. But I decided to play it safe so I put a good coat of JB Weld over the inside and outside of the repair. I let is set up for about 6-7 hours then decided to reassemble the engine. I got it all reassembled and installed last night but decided to leave it sit until this evening so it could completely cure. A little while ago I went out and installed the oil filter and filled her up. Reconnected the battery and double checked things and everything looked fine so I turned the key. It cranked for a few seconds to fill the bowl and she fired right up! She's running just fine. I pushed it out into the driveway and let it run for about twenty minutes and it's still running fine so I think I'll order a new electric clutch and she's back in business. I ended up doing the sump repair for less than $20 including the new gasket and seal. If you ever end up with a broken aluminum casting, give this stuff a shot. It can save you a bunch of cash!

    John
     
  6. TONGA

    TONGA Mods

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  7. k8vol

    k8vol

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    Late model B&S 31CU. ohv base . steve k8vol
     
  8. jpollman

    jpollman Premium Member

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    Working great so far!

    Tuesday afternoon the new electric clutch came in. I mounted it and finished putting the tractor back together and mounted the mower. I fired her up and was able to get the grass cut. I had to spend a few bucks for a new electric clutch but it only cost me about $20 to repair the hole in the engine base plate. Overall it was much cheaper than a new tractor! ;)

    John