AMC RULES 37,153 #1 Posted October 1, 2017 (edited) Got this original shower cap muffler hanging around here... has zip, zero, nada for internals to muffle any of the exhaust passing through it. Weird thing is the outside is solid, virtually perfect, but on the inside...it's down to the very last thread remaining to hold it onto a 3/4" nipple. Was looking for some good ideas that will enable it to stay in service, they're getting so hard to come by these days... I'd really hate to see it become just another dust collector. Edited October 1, 2017 by AMC RULES Share this post Link to post Share on other sites
FatJackDurham 318 #2 Posted October 1, 2017 Turn a threaded adapter and weld it in 2 Share this post Link to post Share on other sites
prondzy 3,884 #3 Posted October 1, 2017 I know that it is perfect original patina but send it to buckrancher have him put a new face and internals in it. As far as the one thread i could only recommend an electrical conduit locking nut for 3/4 metal conduit? Hope it works out for you 5 1 Share this post Link to post Share on other sites
953 nut 58,277 #4 Posted October 1, 2017 58 minutes ago, prondzy said: electrical conduit locking nut for 3/4 metal conduit I agree, be sure you go to a good electrical supply house rather than the big box store, not all locking nuts are created equally. Another option would be to build it up with a bit of silver solder and then tap it with a pipe tap. 1 Share this post Link to post Share on other sites
buckrancher 2,694 #5 Posted October 2, 2017 bring it to Steve's I fixed one like that for Jake Brian 1 4 Share this post Link to post Share on other sites
Cvans 1,009 #6 Posted October 2, 2017 How original do you want to keep it? Take a short piece of pipe that has pipe threads on one end. Cut it off so it is 3/4" longer than the threads. Turn or grind down the last 3/8" so it will slide inside the muffler. Weld or braze it in place and your done. The male threads on the pipe will take a lot of abuse. 1 Share this post Link to post Share on other sites
ACman 7,630 #7 Posted October 2, 2017 You could just send it to me but I don't know if you'd get it back... ! 2 Share this post Link to post Share on other sites
dells68 7,498 #8 Posted October 2, 2017 18 hours ago, buckrancher said: bring it to Steve's I fixed one like that for Jake Brian Best thing to do! Brian fixed one for Emory and it turned out awesome! You'd never know anything had been done to it unless you put an original next to it to compare the hole pattern! 1 1 Share this post Link to post Share on other sites
AMC RULES 37,153 #9 Posted October 2, 2017 I'm not open to modifying the exterior of this muffler in any way. 1 Share this post Link to post Share on other sites
formariz 11,995 #10 Posted October 2, 2017 Use it as a shower head?. 1 4 Share this post Link to post Share on other sites
ACman 7,630 #11 Posted October 2, 2017 How about using one or two steel pipe couples welded together and cut to length . Weld a cap on end , drill a bunch of holes in pipe . Grind the threads back on the muffler until the couple slides in so that the couplers threads are just sticking out . Weld the coupler and muffler together . Grind down weld and make it look pretty . Hope this makes sense . 4 Share this post Link to post Share on other sites
AMC RULES 37,153 #12 Posted October 2, 2017 Makes perfect sense Jeff...cut the threads off, and cap that end. Drill it full of holes, insert into muffler, weld around exposed threads. Share this post Link to post Share on other sites
ACman 7,630 #13 Posted October 2, 2017 (edited) Didn't the original muffler have internal threads ? If you want internal threads use this. That's why I thought welding two together and cut to length if it was longer than one coupler . Use a pipe nipple to position it and hold into place for welding . Edited October 2, 2017 by ACman 2 Share this post Link to post Share on other sites
squonk 42,789 #14 Posted October 2, 2017 You're better off having Brian fix it. IMHO 1 Share this post Link to post Share on other sites
buckrancher 2,694 #15 Posted October 2, 2017 3 hours ago, AMC RULES said: I'm not open to modifying the exterior of this muffler in any way. it will look just as it is but with a baffle on the inside brian 1 1 Share this post Link to post Share on other sites
AMC RULES 37,153 #16 Posted October 3, 2017 I will have it with me Brian. Share this post Link to post Share on other sites
Sarge 3,464 #17 Posted October 4, 2017 Is there a need to fabricate these mufflers , or at least some sort of a market ? I may be open to a winter project if I can get caught up... Sarge 2 1 Share this post Link to post Share on other sites
AMC RULES 37,153 #18 Posted October 4, 2017 You could retire...selling these things. Especially, once you list them on Ebay. 1 1 Share this post Link to post Share on other sites
RedRanger 1,469 #19 Posted October 4, 2017 On 10/2/2017 at 4:32 PM, ACman said: Didn't the original muffler have internal threads ? If you want internal threads use this. That's why I thought welding two together and cut to length if it was longer than one coupler . Use a pipe nipple to position it and hold into place for welding . Hey! That's my hand! 2 Share this post Link to post Share on other sites
953 nut 58,277 #20 Posted October 4, 2017 7 hours ago, Sarge said: Is there a need to fabricate these mufflers , or at least some sort of a market ? I may be open to a winter project if I can get caught up... Sarge You would become very popular with RJ and Suburban owners as well as lots of other brands from the '50s. 2 Share this post Link to post Share on other sites
Sarge 3,464 #21 Posted October 5, 2017 The only real way I could do them here is to use flat sheet metal and build a tapered press die set to make the shape correctly - it would take two pairs of dies since the outside cover is a different shape , not to mention the holes would be a problem . This would really drive the cost per unit up just due to the time involved to get them right and look correct . I'm sure the crowd that wants them would want one that is very hard to tell if it's not an OEM part - which makes the price point even tougher . I finally found a picture of the side profile - that's a rolled crimp between the two parts of the body - mine would have to be a welded joint and I doubt that would be acceptable by a collector market as far as the looks go...? Looks like these were made with at least 4-5 steps to punch/form/crimp that into the shape - not easily reproduced unless you have the original machines made to do them - or invest the money to have dies cut to form the parts - which is out of the question of course . The initial pics I saw made it look simple enough , but further investigation proves it's really beyond what I have here to work with - unless I invest a serious amount of time , possibly weeks or even months .... Sarge 1 Share this post Link to post Share on other sites
AMC RULES 37,153 #22 Posted November 10, 2017 On 10/2/2017 at 9:00 PM, AMC RULES said: I will have it with me Brian. Returned from the master... with nary a scratch. @buckrancher Brian. 2 6 Share this post Link to post Share on other sites
19richie66 17,583 #23 Posted November 11, 2017 Nice! Share this post Link to post Share on other sites
squonk 42,789 #24 Posted November 11, 2017 On 11/10/2017 at 10:06 AM, AMC RULES said: Returned from the master... with nary a scratch. @buckrancher Brian. Told Ya! 1 Share this post Link to post Share on other sites
953 nut 58,277 #25 Posted November 11, 2017 Craig @AMC RULES, Don't you just hate it when someone says that! 5 minutes ago, squonk said: Told Ya! Share this post Link to post Share on other sites