Removing knackered screws

[samk]

I've been trying to remove the small screws that hold the cab floor mat down. After posting on here I realized they were Pozidrive but having bought a couple of pozi screw drivers they still wont come out. I think they're just too old and knackered and the heads have worn over time etc.

i've also tried a number of phillips heads and they just wont budge. There must be another way to get them out - can they be drilled out?

sam

[Ian Hulley]

Be VERY carefull if drilling the cab floor ... the fuel tank's directly below it

[eatcustard]

http://www.amazon.co.uk/Silverline-DA70 ... B000LFS0S8" onclick="window.open(this.href);return false;

[samk]

ooh, how do they work then? need a drill or can they be powered by wrist alone?

[jamesc76]

Drill um out and use a slightly larger self tapper in the hole once floor goes back down!

[BombHead]

If you can get it, try this stuff.
http://www.ezgrip.net/" onclick="window.open(this.href);return false;
We use it all the time at work, bloomin fantastic

[HarryMann]

That EZGrip looks and sounds good stuff!Not come across it before, is there a good UK source?

As for EC's easiouts, http://www.amazon.co.uk/Silverline-DA70" onclick="window.open(this.href);return false; ... B000LFS0S8
forget 'em, not a good tip at all, and irrelevant to self-tappers IMHO

===

FYI - Lots of stuff in Wiki on removing screws and bolts. Did you read it first?

With self-tapperd the trick is to put everything into getting them out forst time, before you've totally mullered them.
Clean heads out
Drop of plus gas downthe sides if poss
Coorect screwdriver, good screwdriver
Tons of pressure BEFORE attemtping to unscrew
Can use an impact hammer effect (tap top of screwdriver while twisting driver with mole-grips, mate pressing down too
Proper impact driver (hammer-blow not battery rubbish )

But the best way (just used it for self-tapper holding brake pipes right behind bl***y steering rack on a Micra) is to use this technique..
https://club8090.co.uk/wiki/Ge ... bolt_punch

No screw/bolt punch? Then use a deliberately blunted edge of an old wood chisel, that's what was to hand outside other day and that got two difficult tuckers out on't Micra that. Bit of technique picking up the edge and whacking it just right, but you've 10 x better acces with those floor mat screws.. give it a go, cheap and works.

Mini-moles can often start pan-head self-tappers moving!

Drilling out - self tappers can be 'really' hard steel, a cobalt (Co8) drill should get the head off though, go for a size fractionally larger than you estinate the top of the thread shank - and wacth that tank on the follow through. All you really need to do is get the head off though, no more.
More ideas here:

https://club8090.co.uk/wiki/Te ... sty_screws" onclick="window.open(this.href);return false;
https://club8090.co.uk/wiki/Te ... bolts/nuts" onclick="window.open(this.href);return false;

Uk Supplier oif EX_Grip (Avaiation!!!) http://www.kemfast.com/content/adhesive ... d-new.html

[BombHead]

That EZGrip looks and sounds good stuff!Not come across it before, is there a good UK source?

There is a UK distributor, but we use it/get it as part of a joint RAF & BAE venture. Will have a word and see if I can, ahem, acquire a box (or two)

[mikey9]

I had a quick search for EZ Grip - looks like just what I need - regularly

If you can remember/find that UK Distributor - that would be great.

Otherwise a cobalt drill tends to go straight through the screw.....

[BombHead]

If you can remember/find that UK Distributor - that would be great.

This is the UK distributor, but I myself don't get involved with its procurement.

http://www.kemfast.com/" onclick="window.open(this.href);return false;

[Ian Hulley]

As for EC's easiouts, http://www.amazon.co.uk/Silverline-DA70" onclick="window.open(this.href);return false; ... B000LFS0S8
forget 'em, not a good tip at all,

Silverline are cheap, low quality tools, sold at builder's merchants and the like. OK for the cruder jobs but not to be relied on for owt delicate or complicated.

Ian

[samk]

hanks for the tips everyone - i've decided to go for the drill bit type screw removers for now - managed to pick a set up from a DIY shop for £10. would have loved to try the Ez Grip but needed to give this a go at the weekend. If it doesnt work i'll be ordering some.

FYI - Lots of stuff in Wiki on removing screws and bolts. Did you read it first?

oops, no I didnt - for some reason i didnt think screw removal would be covered. just slapped myself on the wrist for you all!

[HarryMann]

i've decided to go for the drill bit type screw removers for now

Cannot see for a minute how they would help... maybe I'm thinking of different screws, good luck anyway

[Mr Bean]

For my stuck in posidrives etc I use newish mole wrench layed down flat as posible so the milling in the jaws grips the head. You sometimes have to tap the jaws down with a hammer to get a good purchase. You need to adjust the wrench as hard as posible to lock but without wriggling it off Trust me a firm grip on the widest diameter of the head will beat all your screwdrivers and anti-friction agents. Another way is to get a grip from above with the points of a large pair of side cutters taking care to work them into the very hard metal before applying the turning motion.
Cheers
Wolfie
In the days before political correctness we used to call it the application of White Man's Magic. Another bit of White Man's Magic is to shock a ball joint off the taper by a sharp crack on the end of the knuckle with a hammer while applying a bit of leverage with a tyre lever across the rod end and steering arm

[HarryMann]

Yes Ken, that often works, Mini-Moles, good technique, and of course....

it's in the Wiiiiiiikkkkkkkkkkkkkkiiiiiiiiiiiiiiiii