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Long story, but the end cap in my Dura Ace 7800 cranks was rather stuck, it was greased when it went in but that was several years and about 15000 miles ago, so I wasn't too surprised when it wouldn't budge.
Eventually got it out by putting tool in the vice and turning the frame, unsurprisingly it left a significant amount of thread in the axle, boo hiss.
It's an alu end cap, and the axle's steel, so I'm sure it'll clean up alright, but has anyone had to chase one of these with a tap before? Looks like an M20, not sure of the pitch though, thinking 1mm. Don't much fancy new cranks, and not being open at the other end like an MTB one I can't preload it any other way.
what about a big F-clamp across it to "preload" it before you tighten the crank bolts?
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Not sure of the pitch, but you may find a 32tpi hacksaw blade will work to scrape around the threads.A scriber with an angled end can also be used to clean it up too.
WCS - clean it with a stanley knife.
TYPICAL ROADIE PANIC!
Oh and use lanolin on m & f threads next time.
"Noobs" 🙄
I know it doesn't help now, but one of [url= http://www.fatspanneruk.com/product_details.aspx?Product=Portable-X-Type-BB-tool ]these[/url] could be helpful for next time.
Tried a new Stanley knife blade, couldn't get in there properly, I'm sure a tap would clean it out in a few seconds, just wondering if anyone else had tried it!
G-clamp could work though, good shout, that's certainly preferable to new cranks!
How would that help Schmiken? I used a similar tool, but the end cap just left the thread behind!