BXX Posted August 24, 2011 Report Share Posted August 24, 2011 (edited) Well my 284 trans mount I got with my setup from the yard was junk, go figure. And since new ones don't exist anymore, repair is the only way. And me being the mad scientist cooking away in the garage, even if I found a good one, stock is never good enough:D Everyone always wants more rigid mounts, so this is a no brainer. Urethane fill it!! To do this, you will need some patience and time and the material list is actually quite cheap! -Urethane fill kit - http://www.energysuspensionparts.com/proddetail.asp?prod=DIYMMI -Duct Tape -Electrical Tape -Contact Cement -Kitty Litter or Sand -A Box Big Enough To Fit The Mount In Also, good idea to have a die grinder with some rough and smooth discs, a drill, and a torch. Here we go! -A Bad stock mount -Urethane Fill -Start by drilling out the safety pin so you can get the remaining mount out. Grinding the pin down smooth helps and you should be able to wiggle it and pull it out with pliers -Next, start grinding and cleaning up the outside of the mount. This will make a mess and stink to high heaven -Now, torch the inside that's left. This will take a few times, torching, scraping, and so on until you get as much old rubber out. Then hit it with the die grinder to get as much cleaned and clean it with brake clean. -Now it's time to swiss cheap it with a drill. I used a large and small drill bit. This gives cavities for the urethane to fill. -Now plop the inner part into the body, get a new bolt and nut and put through as the safety pin. I welded mine, but you can just bolt it up. It will need cut and grinded down later on. My welding skills arent the best, but damn these are bad but solid. Then I realized I was welding galvanized bolt and nut and ran outta friggen Argon:mad: Oh well, its good enough and solid. It'll get grinded down and cleaned later. -Now its time to start covering it with duct tape, electrical tape, and cardboard to make sides. Use contact cement to bond and seal. We dont want any leaks! This will take some time and patience. Dont be afraid to skimp on the tape!! -Now bust out your box. I used a USPS Flat-Rate box that I cut down:lol: -A true baller like myself uses Cheshire kitty litter:lol: -Fill the box some, then plop the mount in, level it out. Then start filling it up. A small cup helps get the litter where it needs to be. -Now mix up the Urethane per the directions. Pretty simple since it comes premeasured. You will have more than needed but life moves on. -Now fill the mount cavity up a little, wiggle the inner part of the mount a bit to get everything covered and get the holes filled, then add some more, move around and so on until its filled up all the way. Then wiggle it a bit more and get it settled into its final place and walk away. -I used the remaining urethane and filled up the cut can that I was using to pour the litter carefully into place. Figured once hardened I could always work the little block into something useful some day Now, it's just letting it sit and cure. The urethane should be completely dry and hardened in two days, but it's been reported they can be ready to go the next day. Well, hopefully tomorrow night I can remove it from the mold. Then I will hit it with the die grinder to clean it up and cut down the safety pin and grind it down a bit on the sides, then hit it with some good primer and paint and it'll be a badass mount! Then on to the engine mount:D Edited August 24, 2011 by BXX Quote Link to comment Share on other sites More sharing options...
intern8tion9l Posted August 24, 2011 Report Share Posted August 24, 2011 brilliant!! Quote Link to comment Share on other sites More sharing options...
BXX Posted August 24, 2011 Author Report Share Posted August 24, 2011 And a more finished product. Like a kid on christmas, I couldnt wait to open her up:lol: Seems pretty much solid and cured. I dont have my cutoff tool here at home right now, so I can cut off the stud and start grinding it down. I'll tackle that and trim the urethane this weekend. Other than that, here's the 90% finished product! -You can see how the kitty litter clotted a few small leaks. Worked like a charm! -Urethane 284 mount in its glory! You can see how the urethane filled in voids in the mount body which will net a stonger and more rigid mount. Once im done with this, i'm gonna get to work on the engine mount and then dogbone bracket bushing. I recommend having all the mounts done! Quote Link to comment Share on other sites More sharing options...
slick Posted August 24, 2011 Report Share Posted August 24, 2011 I've seen guys do similar, except they didn't re-use any of the old rubber. Basically, they located where the studs needed to be, welded in new studs to the mount, then poured in the urethane. Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted August 24, 2011 Report Share Posted August 24, 2011 Brilliant! I'll have to figure out how to get mine out now Quote Link to comment Share on other sites More sharing options...
BXX Posted August 24, 2011 Author Report Share Posted August 24, 2011 I've seen guys do similar, except they didn't re-use any of the old rubber. Basically, they located where the studs needed to be, welded in new studs to the mount, then poured in the urethane. I reused the original rubber as that portion was still good and it make life easier to locate the studs without me having to make a jig. And of course it will still allow a little compliance to resist tearing. If all goes well, there should be no tearing. This urethane isnt quite the kind you find of energysuspension parts and such. Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted August 24, 2011 Report Share Posted August 24, 2011 How well is this expected to hold up? Doesn't seem like it would, but I also have 0 experience with urethane I imagine if Bxx is doing it, it must be good Quote Link to comment Share on other sites More sharing options...
BXX Posted August 24, 2011 Author Report Share Posted August 24, 2011 How well is this expected to hold up? Doesn't seem like it would, but I also have 0 experience with urethane I imagine if Bxx is doing it, it must be good Im not the first person to do this with this stuff. Quote Link to comment Share on other sites More sharing options...
carkhz316 Posted August 24, 2011 Report Share Posted August 24, 2011 Looks like a badass idea, if I had a 284 in which to service like this. As an alternative, you could scrap your 5 speed and sell it to me???? Quote Link to comment Share on other sites More sharing options...
BXX Posted August 24, 2011 Author Report Share Posted August 24, 2011 I will sell the setup for the right price. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted August 24, 2011 Report Share Posted August 24, 2011 That is awesome! Glad I saved my blown out 284 mounts. I gotta try that. Quote Link to comment Share on other sites More sharing options...
pwmin Posted September 1, 2011 Report Share Posted September 1, 2011 good to know how to actually do this right. I tried filling the front motor mount on the Riviera and failed. Quote Link to comment Share on other sites More sharing options...
Artemis Posted September 1, 2011 Report Share Posted September 1, 2011 This is neat! Thanks BXX Quote Link to comment Share on other sites More sharing options...
BXX Posted September 1, 2011 Author Report Share Posted September 1, 2011 Well, once the Urethane cures for a week, it seems to have much more strength and tear resistance than it did at 2 days of curing. So it should be good to go. I havent mess with cleaning the mount up and cutting off and grinding down the new safety crossbolt cause ive been working on cleaning out my garage and such. Quote Link to comment Share on other sites More sharing options...
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