Derby cover torx screw head rounded
Seasoned HDF Member
Joined: Jun 2006
Posts: 30,881
Likes: 32,990
From: King George, VA
If the bolt head is already hosed up, use a small cold chisel to get it out. Tap it straight onto the head until it cuts a grove on one side of the bolt head, then tilt the chisel in the cut and tap until the bolt starts to turn.
Last edited by EasternSP; Jul 7, 2016 at 05:58 PM.
Stellar HDF Member
Joined: Sep 2015
Posts: 2,021
Likes: 260
From: Seattle
I've had luck using a hand impact driver, or drill it with Dremel from the outside
Tourer
Joined: Aug 2008
Posts: 335
Likes: 14
From: Baltimore
From my days of riding a metric I use a hand impact driver and hit it with a 2 pound dead blow hammer. The torx bits I have are made for a 3/8 ratchet and work great with the hand impact driver. Used the hand impact driver to loosen the fork drain bolts too. I always use a torque wrench when putting the derby cover back on.
Road Captain
Joined: Mar 2013
Posts: 530
Likes: 57
From: The South
Yes, after rounding one of my torx bolts I said enough is enough. I went with allen head screws and have never had another problem.
Banned
Joined: Jul 2009
Posts: 7,406
Likes: 834
From: Straight Jacket Memories and Sedative Highs
I used to have problems until I started using anti seize.
What I did for this, is tap at low angle with screw driver and hammer. I have done it on the bike, but easier off. Put some duct tape or more around the area to protect it for when you slip.
Then put new ones in with anti seize.
What I did for this, is tap at low angle with screw driver and hammer. I have done it on the bike, but easier off. Put some duct tape or more around the area to protect it for when you slip.
Then put new ones in with anti seize.
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Banned
Joined: Jul 2009
Posts: 7,406
Likes: 834
From: Straight Jacket Memories and Sedative Highs
Shallow button heads is a bit of the problem. Using T25s and not T27s happens a it too.
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