HELP! Removing a screw....
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Three Wheelin'
Joined: May 2008
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From: Ohio
HELP! Removing a screw....
On the picture below (on item 12 & 13), what luck have you guys/gals had removing the allen screw (hex head)? I need to remove these from the calipers to get powdercoated. Ideas? Does anyone know the exact size? It appears to be a 4mm.
TIA!
Andy
TIA!
Andy
RL Technical Advisor
Joined: May 2001
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From: Portland Oregon
Thats may be a 5mmx12mm screw.
Those can be a bugger since its a steel screw inserted in an alloy hole and corrosion, electrolysis can freeze them in place without some "persuasion".
I use a liberal amount of professional-grade penetrating spray and leave it to sit overnight followed by some heat before starting the extraction.
Those can be a bugger since its a steel screw inserted in an alloy hole and corrosion, electrolysis can freeze them in place without some "persuasion".
I use a liberal amount of professional-grade penetrating spray and leave it to sit overnight followed by some heat before starting the extraction.
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From: yorba linda, ca
Some later model 993 calipers are torx headed. From memory, I think Steve is correct at 5mm for the allen headed button heads.
More often than not, you may have to chisel them loose. They do pop loose but sometimes the help of a chisel (in the direction of CCW) is required.
Replacements can be sourced almost anywhere.
More often than not, you may have to chisel them loose. They do pop loose but sometimes the help of a chisel (in the direction of CCW) is required.
Replacements can be sourced almost anywhere.
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From: yorba linda, ca
The other part that seems to help at least me is using the Snap-On stubby allen drivers -- like for the fan pulley bolts -- same thing, the stubby driver really helps crack these things loose!
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Those can be a bugger since its a steel screw inserted in an alloy hole and corrosion, electrolysis can freeze them in place without some "persuasion".
and consider using an impact driver to utilize a few gently love taps.
Craig
and consider using an impact driver to utilize a few gently love taps.
Craig
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Racer
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I used an "impact Driver" to loosen the screw on my 74 Carrera, don't be gentle, as you want to loosen it with te first blow, you don't want to mess up the screw by hitting it softly and then the next time the screw is buggered up because the wrench slipped. My father was a blacksmith and he dealt with these kind of problems in a very decisive manner. I put on a leather glove, hold the wrench tightly, then tap it a couple of times to get the impact driver's blow just right, then baaaaaang! It's done...
After all, as the saying goes, 'the lord hates a coward..."
Good Luck!
Bert
After all, as the saying goes, 'the lord hates a coward..."
Good Luck!
Bert
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Cheers,
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