Could you drill it out bigger and retap as a last resort
|
Originally Posted by 1989mach1
(Post 4817154)
Could you drill it out bigger and retap as a last resort
|
Anybody mention welding ?
|
Originally Posted by getrdunn
(Post 4817156)
might have to do that. Worse case I’ll buy another but have some time so I thought I’d ask. Tks. I have a shelf of old stuff an I do have a 48/40 but not sure that’s close.
|
Originally Posted by getrdunn
(Post 4817127)
Got a sled yesterday with a bad secondary. Got it home and figured out what was wrong. Got everything in good shape now other than extracting the three broken off bolts in the helix. Tried drill-press and with the small bit it just wants to bend the bit. Tried heat with a pick and that’s a no go also. Any ideas. Yeah I know I come across some fked up chit bit Tks in advance.
https://cimg0.ibsrv.net/gimg/www.off...a1c2c6d0b.jpeg https://cimg8.ibsrv.net/gimg/www.off...81e5fd7fb.jpeg Take it a machine shop that has an EDM drill or a sinker/post EDM. They will burn those screws out with zero damage to the part, and they likely won't charge you much. Consider the cost of replacing what would appear to be an unobtainium part. If you get into a bind, we can make arrangements for you to send it to me. I've got a shop around the corner of my building that has the EDM drill, and he would do it for me for nothing. Thanks. Brad. (937)545-8991 |
Soak with 50/50 mix of ATF and acetone.
Then drill center and use EZ out as mentioned. The penetrating solution will help if there is any corrosion or thread locker helping hold the broken pieces in there. |
It is a diamond drive helix off a Firecat. I’ll put the 48/40 on till I get the other one to a shop. Pretty sure the worn rollers put to much strain on it is what caused them to brake. Already replaced those. Pretty small bolts for the purpose. I did soak last night 50/50 and see this afternoon but so damm hard to get a hold of the bolts with anything. I think burning them out be the best solution. Never thought of that!
|
Has anyone mentioned welding ?
|
Originally Posted by getrdunn
(Post 4817198)
It is a diamond drive helix off a Firecat. I’ll put the 48/40 on till I get the other one to a shop. Pretty sure the worn rollers put to much strain on it is what caused them to brake. Already replaced those. Pretty small bolts for the purpose. I did soak last night 50/50 and see this afternoon but so damm hard to get a hold of the bolts with anything. I think burning them out be the best solution. Never thought of that!
I'm a toolmaker. EDM is my first go-to whenever I break a tap/drill/screw. Like I said, I have a couple options for resources on this front. Let me know if you hit a wall. Something else to consider if this is a recurring issue for you... Nitric acid will dissolve steel while leaving the aluminum unscathed. Most lab supply companies sell it. A small QTY will last you quite a while and won't cost much. Just a thought. Thanks. Brad. (937)545-8991 |
Even though the bolts are below the surface, it is a very easy job to build them up with a mig welder and weld a nut to them to remove them.
|
All times are GMT -5. The time now is 08:10 AM. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.