Another fix with JB weld

Mopar General Discussions

  1. moparmat2000

    moparmat2000 FABO Gold Member FABO Gold Member

    Messages:
    16,313
    Likes Received:
    5458
    Joined:
    May 13, 2010
    Location:
    Grand Tetons
    Local Time:
    12:30 AM
    I use JB weld for quite a bit of potmetal repair. If the parts are prepped good it works very well. I had a thermostat housing that was corroded to shit, but solid enough to fix. Thinking this is a great idea in a pinch, especially for our overseas members who may not have access to a replacement cheaply and easily.

    I wanted to see if i could actually repair it. Now i know i can just buy another, and was able to secure a good used one from another Fabo member for not too much coin, but i still wanted to see if i could actually fix this one. I feel this thread can be used for a lot of different stuff thats pitted.

    After sandblasting the part to pitted clean metal, i mixed up the JB weld epoxy and applied it. Once dry, i sanded it to shape, and applied more to the low spots, cured, and sanded it smooth again, then sprayed the end result inside and out with multiple coats of a fluid resistant epoxy primer made by Akzo Noble. This stuff is tough as nails and its really doubtful this thermostat housing will corrode any further after this. All it needs now is a scuff, and some engine enamel. I will keep this as a spare in case needed.

    I can also see the value in this being used to repair corroded and pitted thermostat housing mating flanges on aluminum intake manifolds once they are sandblasted clean.

    Hope this helps
    Matt

    20181220_074332.jpg

    20181220_074320.jpg

    20181220_083837.jpg

    20181220_083844.jpg

    20181225_183920.jpg

    20181226_110619.jpg

    20181226_140604.jpg

    20181226_153148.jpg

    20181226_153203.jpg
     
    Last edited: Dec 28, 2018
    • Like Like x 10
    • 89on35s

      89on35s Inferno Red Duster FABO Gold Member

      Messages:
      1,713
      Likes Received:
      1660
      Joined:
      May 11, 2006
      Location:
      Martensville Sask. Can.
      Local Time:
      11:30 PM
      Nice repair! Doesn't JB Weld get soft when heated up?

      Cley
       
    • Tooljunkie

      Tooljunkie King of cobble/master of the broken bolt FABO Gold Member

      Messages:
      14,848
      Likes Received:
      14004
      Joined:
      Jul 22, 2017
      Location:
      Manitoba
      Local Time:
      12:30 AM
      I have seen water pumps,rebuilt new in the box,with body filler on the hose connections.
       
    • dibbons

      dibbons FABO Gold Member FABO Gold Member

      Messages:
      4,071
      Likes Received:
      2277
      Joined:
      Nov 6, 2009
      Location:
      La Paz, B.C.S., Mexico
      Local Time:
      10:30 PM
      I used it on a small block timing cover once (back in the day).
       
    • moparmat2000

      moparmat2000 FABO Gold Member FABO Gold Member

      Messages:
      16,313
      Likes Received:
      5458
      Joined:
      May 13, 2010
      Location:
      Grand Tetons
      Local Time:
      12:30 AM
      I dunno, i put it under a heat lamp to dry it quickly. It seemed pretty hard to me. Heck farmers glue tractor blocks back together with it lol. On a mating flange area with a gasket and sealant, it will probably hold up a long time.
       
      • Like Like x 1
      • moparmat2000

        moparmat2000 FABO Gold Member FABO Gold Member

        Messages:
        16,313
        Likes Received:
        5458
        Joined:
        May 13, 2010
        Location:
        Grand Tetons
        Local Time:
        12:30 AM
        The other key to making this stuff hard as a rock is making sure you have an exact even mixture of the base and the hardener. If you use a small digital scale and weigh just the contents and not the little square of cardboard on the scale that you intend to mix it on, you can get an exact 1 to 1 mix. Sometimes when this stuff gets soft its because the initial mix ratio is not correct. Too much hardener or base will do that to it.
         
        • Thanks! Thanks! x 1
        • Agree Agree x 1
        • billccm

          billccm Well-Known Member

          Messages:
          127
          Likes Received:
          95
          Joined:
          May 13, 2018
          Location:
          Tucson
          Local Time:
          10:30 PM
          I could write a book on what I've repaired with just two products. One is JBWeld and the other deoxit.
           
          • Like Like x 1
          • rumblefish360

            rumblefish360 So close, yet so far away FABO Gold Member

            Messages:
            38,278
            Likes Received:
            9929
            Joined:
            Jun 21, 2005
            Location:
            New York, on a Island
            Local Time:
            1:30 AM
            LMAO!

            Great job! Dang!
             
          • TrailBeast

            TrailBeast AKA Mopars4us on Youtube

            Messages:
            21,356
            Likes Received:
            8897
            Joined:
            Mar 11, 2011
            Location:
            Arizona
            Local Time:
            10:30 PM
            It's lasted for 5 years on mine so far without a problem, as I really wanted to use an aluminum water neck I had that was pitted like that.
            When it gets hot it just gets harder from what I have noticed, and I only use sealer with no gasket.
            Gaskets eventually seep.
             
            • Like Like x 2
            • moparmat2000

              moparmat2000 FABO Gold Member FABO Gold Member

              Messages:
              16,313
              Likes Received:
              5458
              Joined:
              May 13, 2010
              Location:
              Grand Tetons
              Local Time:
              12:30 AM
              I am a big fan of the paper gasket and indian head shellac on this area. Plus its paintable.
               
              Last edited: Dec 28, 2018
              • Like Like x 1
              • Thanks! Thanks! x 1
              • hemi71x

                hemi71x FABO Gold Member FABO Gold Member

                Messages:
                5,605
                Likes Received:
                2072
                Joined:
                Dec 22, 2009
                Location:
                Rancho Cordova, CA
                Local Time:
                10:30 PM
                I'me with you there, on that one.
                All the things repaired with JB Weld, in my automobile mechanics world.
                Great product.
                 
                • Thanks! Thanks! x 1
                • diymirage

                  diymirage HP@idle > hondaHP@redline

                  Messages:
                  19,376
                  Likes Received:
                  13336
                  Joined:
                  Oct 12, 2012
                  Location:
                  michigan
                  Local Time:
                  1:30 AM
                  I got a dirt bike with that stuff slathered on the bottom of the case
                  Doesn't leak a drop though, and hasn't in the 5 plus years I've owned it
                   
                  • Like Like x 3
                  • Agree Agree x 1
                  • Rick@Laysons

                    Rick@Laysons FABO Vendor FABO Vendor

                    Messages:
                    1,704
                    Likes Received:
                    669
                    Joined:
                    Apr 25, 2005
                    Location:
                    Lakewood, WA
                    Local Time:
                    10:30 PM
                    JBWeld is the shiznit!!!!!

                    When I was working ammonia refrigeration, I used it to "fix" a stripped out head-bolt on an old Vilter piston-type ammonia compressor. Bolt size was 1 1/8", hole in the block was stripped out....drilled the hole out to remove all remaining threads, cleaned the hole with solvent and blown out with air gun, then completely filled the hole with JBWeld and let it set and cure for three days. Came back, marked the center of the hole and re-drilled and tapped it out. Re-installed the head and torqued the bolts down to 195 lbs....and that compressor is still running to this day.
                     
                    • Like Like x 9
                    • 72Dart6pack

                      72Dart6pack Harder Better Faster Stronger.

                      Messages:
                      3,624
                      Likes Received:
                      3282
                      Joined:
                      Feb 1, 2016
                      Location:
                      Roseville Michigan
                      Local Time:
                      1:30 AM
                      JB weld for old crusty motor mounts. They came out perfectly

                      20180420_114408.jpg

                      20180422_164319.jpg
                       
                      • Like Like x 4
                      • billccm

                        billccm Well-Known Member

                        Messages:
                        127
                        Likes Received:
                        95
                        Joined:
                        May 13, 2018
                        Location:
                        Tucson
                        Local Time:
                        10:30 PM
                        My friend had a 200 straight 6 maverick that kept blowing the #2 plug out. I put some JBWeld on my pinky, squished it on the spark plug threads, put the plug in and torqued. Sit overnight and he drove that car another 30k miles before the gas tank fell out due to a severe rusted trunk. The days of trying to keep a beater on the road.
                         
                        • Like Like x 3
                        • Agree Agree x 1
                        • 72Dart6pack

                          72Dart6pack Harder Better Faster Stronger.

                          Messages:
                          3,624
                          Likes Received:
                          3282
                          Joined:
                          Feb 1, 2016
                          Location:
                          Roseville Michigan
                          Local Time:
                          1:30 AM
                          Filled it the welding with JB weld on the other side.

                          20180424_122607.jpg

                          20180427_132051.jpg
                           
                          • Like Like x 4
                          • circlepilot

                            circlepilot FABO Gold Member FABO Gold Member

                            Messages:
                            695
                            Likes Received:
                            454
                            Joined:
                            Nov 15, 2014
                            Location:
                            El Dorado, Arkansas
                            Local Time:
                            12:30 AM
                            Angel II Tulsa.jpg Nicely done repair...I'll add my little testament...I build, fly and compete with control line stunt model airplanes. One of my planes has an engine exhaust muffler with a modified pipe. I reamed the pipe (a bunch) to decrease unwanted back pressure, however the pipe (which is part of the muffler and not removable) was almost a thin as foil. I built it up with JB and baked it in the oven. I've lost count of the total engines runs over the past ten years and the muffler and pipe are still truckin.
                            Norm
                             
                            Last edited: Dec 27, 2018
                            • Like Like x 5
                            • moparmat2000

                              moparmat2000 FABO Gold Member FABO Gold Member

                              Messages:
                              16,313
                              Likes Received:
                              5458
                              Joined:
                              May 13, 2010
                              Location:
                              Grand Tetons
                              Local Time:
                              12:30 AM
                              Just like the package says.
                              Dont scrap it, JB it !!
                               
                              • Agree Agree x 2
                              • dibbons

                                dibbons FABO Gold Member FABO Gold Member

                                Messages:
                                4,071
                                Likes Received:
                                2277
                                Joined:
                                Nov 6, 2009
                                Location:
                                La Paz, B.C.S., Mexico
                                Local Time:
                                10:30 PM
                                I'm still waiting to hear from the member who has made the nitromethane burning Hemi block repair (lol).

                                nitro.jpg
                                 
                                • Like Like x 5
                                • moparmat2000

                                  moparmat2000 FABO Gold Member FABO Gold Member

                                  Messages:
                                  16,313
                                  Likes Received:
                                  5458
                                  Joined:
                                  May 13, 2010
                                  Location:
                                  Grand Tetons
                                  Local Time:
                                  12:30 AM
                                  I have done other repairs to potmetal pieces. After that you can either monochrome them (paint body color) or get them done with spray on silver nitrate (spectrachrome) you can salvage a lot of stuff that would otherwise be junk.

                                  Keep em coming, what else have you JB welded on your ride ??
                                   
                                • moparmat2000

                                  moparmat2000 FABO Gold Member FABO Gold Member

                                  Messages:
                                  16,313
                                  Likes Received:
                                  5458
                                  Joined:
                                  May 13, 2010
                                  Location:
                                  Grand Tetons
                                  Local Time:
                                  12:30 AM
                                  I remember the old corner auto parts store i used to go to back when i was in my teens and early 20s had a display for JB weld. It was a glass soda bottle with red liquid in it, had a golf ball jb welded to the top to hold the liquid inside, and was glued to a wooden base with it, and had a peg hook glued to the side of it. The little jb weld packages hung on the peg hook. Then the advertisement on the package was over the top.

                                  Glues, glass. Aluminum, steel, plastic, wood, ceramic. Can be drilled, tapped, sanded, and machined to a feather. Then the product review on the package. The guy in Nebraska or somewhere else in the midwest talking about how he glued his tractor engine block with it. Well as a teenager, that made a believer out of me. I bought my first package of JB back then. Been finding uses for that shit since.

                                  So i go into oriellys and now they have it in toothpaste sized tubes lol. This stuff is magic shit. I find uses for it all the time. Had a rearview mirror base thats glued to a windshield that wouldent stay on even with the special glue kit your supposed to use. I JB welded that mirror mount. Worked like a charm lol.
                                   
                                  Last edited: Dec 28, 2018
                                  • Like Like x 1
                                  • halifaxhops

                                    halifaxhops It's going to get stupid around here! FABO Gold Member

                                    Messages:
                                    59,714
                                    Likes Received:
                                    28046
                                    Joined:
                                    Jan 20, 2014
                                    Location:
                                    CENTRURAL, PA
                                    Local Time:
                                    1:30 AM
                                    Stuff is great. Been using PC-6 a lot lately It is good when you need a really solid repair. You can drill and tap it if needed.
                                     
                                  • TrailBeast

                                    TrailBeast AKA Mopars4us on Youtube

                                    Messages:
                                    21,356
                                    Likes Received:
                                    8897
                                    Joined:
                                    Mar 11, 2011
                                    Location:
                                    Arizona
                                    Local Time:
                                    10:30 PM
                                    When I made the dock for my phone I covered the bottom of the phone with saran wrap then plugged the charging cord and headphones into the phone through the plastic.
                                    Then filled the bottom of an extra phone case with JB and let it sit over night to set up and pulled the phone out leaving both cable ends.
                                    Then I wired the other ends into the car.
                                    Now I get in the car and pop my phone into the new base and it connects the charger built into the car as well as the audio out at the same time.

                                    Basically made a phone dock that no one makes with JB weld.
                                    (I couldn't find one like this for sale anywhere, so I made one)

                                    That 15 minute set up time stuff by Loctite is just as good, and sets up WAY faster.
                                    I use that quite a bit.
                                     
                                    • Like Like x 1
                                    • dibbons

                                      dibbons FABO Gold Member FABO Gold Member

                                      Messages:
                                      4,071
                                      Likes Received:
                                      2277
                                      Joined:
                                      Nov 6, 2009
                                      Location:
                                      La Paz, B.C.S., Mexico
                                      Local Time:
                                      10:30 PM
                                      Repaired the hard plastic cover where the release button goes in my Dodge Dakota driver's side seat belt a couple of years ago now.
                                       
                                      • Like Like x 1
                                      • Slantvaliant

                                        Slantvaliant Active Member

                                        Messages:
                                        39
                                        Likes Received:
                                        17
                                        Joined:
                                        Apr 6, 2005
                                        Location:
                                        Lubbock, Texas
                                        Local Time:
                                        6:30 AM
                                        • Like Like x 2
                                        1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
                                          By continuing to use this site, you are consenting to our use of cookies.