Gary Murphy 1 Posted September 26, 2020 Share Posted September 26, 2020 I am building a modified RC monster truck in my spare time. I have to use parts made for other models which I can adapt or luckily fit! The part this is about is a sway bar arm. All the accompanying parts will work a treat apart from the arm. Its too long. If the 3 holes had another hole inboard making 4 so I could remove the 3 holes it would be perfect , 25mm to 38mm too long. Now here is the problem,did not see this side of the part when I bought it. The part is beyond my skill level to make , The hole to the right on the picture needs to be drilled upright because a rod passes through this and into another arm. This hole also has a thread hole for a grub screw to lock the rod. Any ideas on how to fill the void? not sure it will be possible,as soon as the length is cut the wall will be lost at the end. Quote Link to comment Share on other sites More sharing options...
Robin Colbourne Posted September 26, 2020 Share Posted September 26, 2020 Metal-loaded epoxy? Of file a piece of metal to the shape of the recess and epoxy it in (after thoroughly roughening and cleaning both parts. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted September 26, 2020 Share Posted September 26, 2020 Could you fashion a completely new part from epoxy sheet and attach a metal collar at the end where you need to attach a grub screw either mechanically (small piano wire pins) or using epoxy (JB Weld) or, perhaps best, a combination of both? Geoff Quote Link to comment Share on other sites More sharing options...
Former Member Posted September 26, 2020 Share Posted September 26, 2020 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
J D 8 Posted September 26, 2020 Share Posted September 26, 2020 One for some JB weld. Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted September 26, 2020 Share Posted September 26, 2020 As per Doc Marten suggests ,fill void with low temp alloy brazing then reshape and drill new hole. Plenty available on eBay for little money . Or start a- fresh with a strip of hard alloy. I guess that being on a car that weight won't be too much of an issue ? Edited By Engine Doctor on 26/09/2020 14:08:59 Quote Link to comment Share on other sites More sharing options...
Gary Murphy 1 Posted September 26, 2020 Author Share Posted September 26, 2020 Thanks for the ideas. I can see the Epoxy sheet and metal collet being the easiest, wont look as good. Would like to keep the metal. The low temp brazing rod method will prob look the best when reshaped. Is this just a case of welting into the voids with mini gas torch or soldering iron? Will the heat effect the ally,its very light and from china? Quote Link to comment Share on other sites More sharing options...
Martian Posted September 26, 2020 Share Posted September 26, 2020 Plus for JB weld ,use the appropriate one thoroughly clean the recess with alcohol when hardened drill out the hole oversize to take a section of brass rude with the right internal size for the fixing bond tube in place clean and good to go . The reason I suggest brass tube is to give a bearing surface Quote Link to comment Share on other sites More sharing options...
Former Member Posted September 26, 2020 Share Posted September 26, 2020 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Gary Murphy 1 Posted September 26, 2020 Author Share Posted September 26, 2020 After reading DM`s mention about lurking too long could melt the arm,which has got thin edging,wary. Think I will have to go the way of epoxy to fill the void and use I brass bushing to take the steel rod. This might sound silly but as anyone got any experience of the colours various "metal" epoxies dry? Quote Link to comment Share on other sites More sharing options...
Ben B Posted September 26, 2020 Share Posted September 26, 2020 Milliput or epoxy repair putty would do it. Easier to control than jb weld. Milliput do a nice white version that should do the job. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.