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CVO Technical => Drive Train => Topic started by: newseultra07 on March 22, 2018, 10:05:04 PM

Title: Help on removing bolt from primary cover
Post by: newseultra07 on March 22, 2018, 10:05:04 PM
Need some suggestions on removing one bolt from the primary cover. Got all them out except one & the head is stripped. I tried driving the next size bigger one in & it just slips out. I also made a slot with my Dremel cutoff wheel & then tried to use a screw driver to remove & it just slips out also.

My next move is either taking the bike to get bolt removed or take primary cover off & then take to get it bolt removed... Anyone have any suggestions on how to remove... It has to always happens to me seems like...
Title: Re: Help on removing bolt from primary cover
Post by: newseultra07 on March 22, 2018, 10:24:46 PM
OK after thinking about it some. Gonna drill hole in it & then use easy out to hopefully get it out...
Title: Re: Help on removing bolt from primary cover
Post by: Yellow09SERG on March 22, 2018, 10:30:23 PM
OK after thinking about it some. Gonna drill hole in it & then use easy out to hopefully get it out...

Just done that week before last. All of them came out but 1. Drilled the head off and the threaded part that was left sticking out unscrewed by finger. Threw the remaining Torx in the trash and replaced with SS Allen
Title: Re: Help on removing bolt from primary cover
Post by: iski on March 23, 2018, 08:21:49 AM
Good advice.  Get rid of the Torx and replace with allen.
Title: Re: Help on removing bolt from primary cover
Post by: Mikey on March 23, 2018, 10:02:14 AM
Wow a torx stripped? Be sure you have the correct size some are very close like 25, 27, etc., If you use the correct size and strip a fastener  better buy better tools!
Title: Re: Help on removing bolt from primary cover
Post by: Joel on March 23, 2018, 05:13:00 PM
I use a left handed drill bit to remove bolts that have broken or the condition like your in. Most of the time as the bit begins to cut into the bolt it grabs it and spins it out.
Title: Re: Help on removing bolt from primary cover
Post by: newseultra07 on March 23, 2018, 06:13:45 PM
It was the Derby Cover tore bolts & not the primary...

I got it removed with an easy out. But wasn't easy.. I drilled the hole & hammered easy out in it. Turned with crescent wrench and the damn easy out tip broke off. I then drilled little bit deeper & hammered it back in & finally got it to break free... I then went & bought some SS button head Allen head screws & got it back together...
Title: Re: Help on removing bolt from primary cover
Post by: skratch on March 23, 2018, 09:23:31 PM
usually, once you drill the head off the bolt, it takes the tension off of the rest of it and you can unscrew it by hand.  but now that you have it off, i suggest using a dab of anti seize on the threads.  it'll keep it from galling.  also, don't worry about the torque on those bolts.  the oil behind it is not high pressure so it doesn't need a really tight seal.  i usually just snug em up in a star pattern using a screwdriver handled torx bit.  haven't had a problem with them in 15 years.  not since the first time i had to remove the derby cover on my sporty that the dealer overtightened on me and i went through what you just did. :bananarock:
Title: Re: Help on removing bolt from primary cover
Post by: newseultra07 on March 23, 2018, 09:44:17 PM
I put a dab of blue thread locker on them & just barely tightened up. I may remove them & apply anti seize. I couldn't find any small washers so just put on without any.. The stock washers on torx bolts won't come off...Hopefully with the button head cap screws will not have problem getting off in future...
Title: Re: Help on removing bolt from primary cover
Post by: Yellow09SERG on March 24, 2018, 12:43:38 AM
I put a dab of blue thread locker on them & just barely tightened up. I may remove them & apply anti seize. I couldn't find any small washers so just put on without any.. The stock washers on torx bolts won't come off...Hopefully with the button head cap screws will not have problem getting off in future...

I went back with a regular allen instead of the button head. Use a lot of button head allens at work and not uncommon to have to drill the head just as you did the Torx. The amount of surfaces area under the head of the button seems to add enough friction that they are like they were installed with green loctite, but once the head is drilled off they will unscrew by hand
Title: Re: Help on removing bolt from primary cover
Post by: lpennock on March 24, 2018, 06:47:02 AM
Not to mention how shallow the hole is in button heads compared to other types.

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Title: Re: Help on removing bolt from primary cover
Post by: KGB on March 24, 2018, 07:32:33 AM
 :(
Title: Re: Help on removing bolt from primary cover
Post by: RonandJanet on March 24, 2018, 09:14:31 AM
That is so true!!
Title: Re: Help on removing bolt from primary cover
Post by: newseultra07 on March 24, 2018, 09:59:59 AM
Well hell think I'm just gonna leave as is with button heads for now. Need a Grade 8 bolt u can't hardly strip them suckers...
Title: Re: Help on removing bolt from primary cover
Post by: bigchuck on March 28, 2018, 12:46:15 AM
I have had good luck using an impact driver.
Title: Re: Help on removing bolt from primary cover
Post by: 08glide on March 28, 2018, 11:11:23 AM
as already stated, i think the key is to make sure you've got the right torx head. i've know several that thought it was a t-25 ( &it will feel like it fits) but it;s really a t-27. I also use a impact driver if one feels like it's not breaking loose. just don't over tighten(as already said, they're not under that mush pressure). I'd never use a thread locker on them. jmo
o
Title: Re: Help on removing bolt from primary cover
Post by: Cat Eye on March 28, 2018, 04:42:04 PM
as already stated, i think the key is to make sure you've got the right torx head. i've know several that thought it was a t-25 ( &it will feel like it fits) but it;s really a t-27. I also use a impact driver if one feels like it's not breaking loose. just don't over tighten(as already said, they're not under that mush pressure). I'd never use a thread locker on them. jmo
o
X2
And use a torque wrench to tighten to around 84-100 inch lbs