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Discussion Starter #1
Hey guys,
I'm about to change some rotors and will be using an impact
wrench to get the torx bolts out of the hub, to avoid shearing off
the bit in the bolt head.

My question is; do you need heat to break the loctite that is applied at
the factory? Or do they come loose easy enough without any heat?
I'm thinking of a blue propane burner type flame for the heat.

Thanks!
 

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The Angry One
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Shouldn't need a impact wrench of any kind. Doubt you will need heat either, I would give it a go with regular old hand tools first.
 

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Discussion Starter #3
Shouldn't need a impact wrench of any kind. Doubt you will need heat either, I would give it a go with regular old hand tools first.
I did that and I ended up shearing off the torx bit, twice.

I'm thinking the short, hard hits from an impact will loosen them
without breaking off the bit in the bolt head.
 

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I've never needed heat or an impact. Maybe you need better quality bits?
 

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The Angry One
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I did that and I ended up shearing off the torx bit, twice.



I'm thinking the short, hard hits from an impact will loosen them

without breaking off the bit in the bolt head.

Doubtful. If anything you will strip them out. Buy a better bit, and /or a little heat.
 

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Discussion Starter #6
Always used Craftsman tools, and Sears did replace the bit,
no questions asked per their warranty. I now have two sheared
bits. Trying to avoid ruining a third...

I'll use some heat, start with lower air pressure on the gun, then ramp it up and see what happens.
 

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Hey guys,
I'm about to change some rotors and will be using an impact
wrench to get the torx bolts out of the hub, to avoid shearing off
the bit in the bolt head.

My question is; do you need heat to break the loctite that is applied at
the factory? Or do they come loose easy enough without any heat?
I'm thinking of a blue propane burner type flame for the heat.

Thanks!
I did that and I ended up shearing off the torx bit, twice.

I'm thinking the short, hard hits from an impact will loosen them
without breaking off the bit in the bolt head.
Heat the hub up to 400*F to break the loctite and use a good torx bit in the bolt heads . I've used a heat gun on several occasions to heat the hub up . :)
 

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Make sure the size is correct as well. T-45 for the rear disk, T-40 for the front disk.

I used one that was slightly too small on the rear disk once without heat, and snapped the bit, no damage to the bolt.
 

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I use a hammer hand impact and Snap On or Mac Tools bits and I have never broken a bit or stripped a screw head. I had some Craftsman but I found them to be fairly soft and would round out or break. That was many years ago perhaps they have gotten better
 

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Discussion Starter #10
One of the best tools I ever bought was my impact driver.
That thing has broken loose many over-tightened screws, over the
years. Bought it when I was 15 years old, and that was a long,
long time ago. I had forgot I have that impact driver.

Thanks for the suggestions!
I'll heat those suckers, let them cool, then hit them with the impact driver.
 

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One of the best tools I ever bought was my impact driver.
That thing has broken loose many over-tightened screws, over the
years. Bought it when I was 15 years old, and that was a long,
long time ago. I had forgot I have that impact driver.

Thanks for the suggestions!
I'll heat those suckers, let them cool, then hit them with the impact driver.
Break them loose when still hot not cold . :)
 

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Best results are had with best tools.
Find a Snap-On or Mac Torx bit.
Snap-On has a heavy duty removal that it just what it says. Look on EBay for a good used, about 1/2 the cost of one off the truck. I would use the hand impact driver just to break the all loose.
I've never had an issue.

Part numbers for the 3/8 drive are:

Standard duty T-40 = FTX40E
Heavy Duty Removal T-40 =FTXB40E

Standard duty T-45 = FTX45E
Heavy Duty Removal T-45 = FTXB45E (bit is a gold or brass color)

IMHO a set of $30-40 driver bits in a drawer is better than having to replace a rotor, or wheel if the bolts snap off.


Sent from Motorcycle.com Free App
 

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Discussion Starter #15

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I recently had to do this due to getting new tires. I did'nt run into any problems getting loose using torx bits from a cheap Stanley set I have and air impact gun. BTW mine all had blue loc-tite on them and that is what I put back on.
 
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