repairing engine mount flanges
03-13-2003, 10:39 AM
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repairing engine mount flanges
I have an engine with the holes drilled out on two of the four holes of the engine mounting flange. Some idiot before me drilled them out to the point where the hole is broke all the way out. Does anybody weld this flange shut and re-drill the holes? Is it possible to do without ruining the motor? Is Tig welding possible? How about Mig? Shown in picture. Mike
03-13-2003, 05:52 PM
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repairing engine mount flanges
Another option is to get with the quickee guys in your area and find out about back plate engine mounts that bolt directly to the firewall. Pretty slick.
If it was my engine, I'd just drill another mount hole in clean metel next to the old busted out hole.
If it was my engine, I'd just drill another mount hole in clean metel next to the old busted out hole.
03-13-2003, 06:12 PM
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repairing engine mount flanges
This looks like a fairly small engine. Your LHS should have universal mounts that don't use bolts to attach the engine to the mount rails. Rather, a strap is used to hold the flange against the mount rails. I've seen this on a couple of trainer ARFs, and it seems to work well.
Just another option.
- George
http://www2.towerhobbies.com/cgi-bin...?&I=LXL207&P=7
Just another option.
- George
http://www2.towerhobbies.com/cgi-bin...?&I=LXL207&P=7
03-13-2003, 06:35 PM
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aluminum solder
there is an aluminum solder availabe,got mine one ebay a few years ago that melts at about 700 degrees so you use a propane torch and a stainless brush to clean the part being soldered.remove all parts from case and solder all broken holes closed.file the solder down to the flange to provide a good level/smooth mounting surface after drilling new mounting holes.
03-13-2003, 07:47 PM
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repairing engine mount flanges
OK, I'm guessing here but the engine in question is an old McCoy control line engine. That said I suspect it's more of a restoration project the a I wan to use it project.
As I noted earlier take it to a professional welder and see what they think. I have a TIG welder and have good success welding stuff with it, including cast aluminum. Techniques and knowledge is were it's at and what your after.
As I noted earlier take it to a professional welder and see what they think. I have a TIG welder and have good success welding stuff with it, including cast aluminum. Techniques and knowledge is were it's at and what your after.
