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-   -   Drilling out Arctic Cat helix bolts Help (https://www.offshoreonly.com/forums/general-q/374407-drilling-out-arctic-cat-helix-bolts-help.html)

SB 01-06-2022 02:20 PM

Just thinking out loud

https://cimg3.ibsrv.net/gimg/www.off...86209c485.jpeg

ThisIsLivin 01-06-2022 03:50 PM

I second the EDM. When I was fixing sleds and any small motor stuff I used EDM regularly to burn out bolts. I had a key way break on a kart racing engine and had the crank welded and burned a new key way with EDM, worked perfect. Other option is to use a center drill from a lathe or mill they are very hard and won't move even when drilling on an angle like your broken bolts. Just make sure everything is clamped down super tight.

getrdunn 01-06-2022 05:42 PM

Had the joy of plowing all day when everything just goes perfect. 😂. NOT! Iíve got a plasma cutter and tig/mig welder. My favorite shop must along with welt band saw. I put the 48/40 on for a quick fix and pulled it over 3 times and the fken pull cord broke. Just the way chit goes. Rewound with new rope and pulled over twice and didnít retract. The way it goesÖ Tks for all the input.

sutphen 30 01-06-2022 08:47 PM


Originally Posted by SABER28 (Post 4817129)
try setting a small nut on top and welding it to the broken off bolt.


Originally Posted by SB (Post 4817133)
yup, and weld wonít stick too the aluminum.


Originally Posted by sutphen 30 (Post 4817142)
welding a nut is the easiest method of extraction,,do it all the time.I only drill if I need to shrink the bolt as its being welded.


Originally Posted by SB (Post 4817158)
Anybody mention welding ?


Originally Posted by SB (Post 4817200)
Has anyone mentioned welding ?


Originally Posted by snapmorgan (Post 4817216)
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.


Originally Posted by SB (Post 4817223)

anybody mention welding.:D :D

sailtexas186548 01-07-2022 07:47 PM

Weld a nut on the broken bolt?

SB 01-07-2022 08:21 PM


Originally Posted by sailtexas186548 (Post 4817365)
Weld a nut on the broken bolt?

Thinking about this for a bit, Iíll have to agree.

carnutsx2 01-07-2022 08:43 PM


Originally Posted by sailtexas186548 (Post 4817365)
Weld a nut on the broken bolt?

yep, it does at least two things, first it gives you something you can put a wrench on and secondly it thermally shocks the broken( most likely corroded) and stuck bolt . Works great but I've never done anything as small as a helix.

zfrilly 01-07-2022 10:23 PM

Anyone ever weld out a pressed in bearing race?

sutphen 30 01-07-2022 10:51 PM


Originally Posted by zfrilly (Post 4817380)
Anyone ever weld out a pressed in bearing race?

run a tig arc around the race and it should fall out,,thats how I take out valve seats.

getrdunn 01-08-2022 07:11 AM

Good to know these things!!!


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