Oh Crap, threads of prop screw broke off inside TD
07-01-2016, 04:41 PM
#1
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Oh Crap, threads of prop screw broke off inside TD
I was tightening a Mecoa 049 spinner adapter bolt and the damned thing broke the threaded part in the engine. How do I get this out? (big question, why did they make it so soft)
07-01-2016, 07:35 PM
#2
I stay clear of the silver color soft metals for prop bolts, the soft stuff was made to help
save the engine and let the bolt snap. I always use a bit of oil on the threads to insure
should I snap one it will back out with less fuss. You may use a pointed steel tip and
catch a chance to unscrew it. With a small drill bit and a drill press you can drill a pilot
hole and use a easy out bit to back it out.
save the engine and let the bolt snap. I always use a bit of oil on the threads to insure
should I snap one it will back out with less fuss. You may use a pointed steel tip and
catch a chance to unscrew it. With a small drill bit and a drill press you can drill a pilot
hole and use a easy out bit to back it out.
07-02-2016, 06:43 AM
#6
Left hand drill in a lathe, then an EZ out. Regular drill is ok too. Sometimes you can chase it out with an ice pick too.
Last edited by aspeed; 07-02-2016 at 06:46 AM.
07-02-2016, 07:48 AM
#7
I wouldn't tape working parts [like an assembled engine] to a running sander.
There might be some "science" to the orientation of the part to be loosened to the source of vibration.
Control Line Combat planes that ran for a minute with prop damage could loosen up hardware on the plane like you wouldn't believe.
07-02-2016, 08:26 AM
#8
You can still tap off the prop plate disassemble and get it down to the crank shaft if a sharp steel point wont back it out.
Tampa RC may have already sorted it out since he never came back to the thread.. .
Tampa RC may have already sorted it out since he never came back to the thread.. .
