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TIGHT screws - how to loosen?

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Himanshu Gohel

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Jun 17, 1998, 3:00:00 AM6/17/98
to

Hi all:

I'm trying to open a Yamaha R3 receiver, but the screws are so
tightly screwed in, I can't seem to open it...of seven, I managed
to get two off, and on a third one I've almost ruined the head.

I've put a little WD-40 around the screw hoping to make it a little
easier but that didn't work either. Pliers can't get a hold of
the round heads properly.

Any ideas on how to loosen the screws?

If you email a copy of your reply, please remove the XXX from my
address. Thanks!

--
Himanshu Gohel, go...@csee.usf.eduXXX | Yeah, Pops was right,
WEB URL: http://www.csee.usf.edu/~gohel/ | it's a wonderful
Geometric Modeling and Graphics Research Group | world.
U of South Florida, Tampa, FL. USA. | -- Tony Bennett

bsa...@hotmail.com

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Jun 17, 1998, 3:00:00 AM6/17/98
to

One thing I have done in similar situations is to use a cutting disk
in a dremel tool & cut a new slot into it. I have had great success
this way in several situations. A hacksaw would also work, if you have
the access. A dremel tool will get in most places. If interior to a
unit (VCR/Amp/whatever), put a cloth around to catch any filings.

good luck.


On 17 Jun 1998 14:19:19 GMT, go...@csee.usf.eduXX (Himanshu Gohel)
wrote:

Loren Schaeffler

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Jun 17, 1998, 3:00:00 AM6/17/98
to

Himanshu Gohel wrote:
>
> Hi all:
>
> I'm trying to open a Yamaha R3 receiver, but the screws are so
> tightly screwed in, I can't seem to open it...of seven, I managed
> to get two off, and on a third one I've almost ruined the head.
>
> I've put a little WD-40 around the screw hoping to make it a little
> easier but that didn't work either. Pliers can't get a hold of
> the round heads properly.
>
> Any ideas on how to loosen the screws?
>
> If you email a copy of your reply, please remove the XXX from my
> address. Thanks!

I've been using diagonal cutters for years. Grab the screw with the tip
of the diagonal cutter. This makes a small notch in the screw and turn
it out with the cutter. Loren.....

New Website Address
http://prairie.lakes.com/~lorens
Chemnitzer Concertina Information

Peter Chrisbacher

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Jun 17, 1998, 3:00:00 AM6/17/98
to go...@csee.usf.eduxxx

Dunno how good WD40 is at freeing frozen screws, but Liquid Wrench always works
for me with metal/metal contact! Two caveats - you have to be patient, and you
sometimes need to apply it several times. Let it sit overnight if possible.

Note: I don't know what affect Liquid Wrench has on electronics or plastic, so
be careful where it drips!

Good luck -

-Pete

Himanshu Gohel wrote:

> Hi all:
>
> I'm trying to open a Yamaha R3 receiver, but the screws are so
> tightly screwed in, I can't seem to open it...of seven, I managed
> to get two off, and on a third one I've almost ruined the head.
>
> I've put a little WD-40 around the screw hoping to make it a little
> easier but that didn't work either. Pliers can't get a hold of
> the round heads properly.
>
> Any ideas on how to loosen the screws?
>
> If you email a copy of your reply, please remove the XXX from my
> address. Thanks!
>

> --
> Himanshu Gohel, go...@csee.usf.eduXXX | Yeah, Pops was right,
> WEB URL: http://www.csee.usf.edu/~gohel/ | it's a wonderful
> Geometric Modeling and Graphics Research Group | world.
> U of South Florida, Tampa, FL. USA. | -- Tony Bennett

--
-----------------------------------------------------------------
Peter Chrisbacher
mailto:pxba...@netaxs.com

Tony Duell

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Jun 17, 1998, 3:00:00 AM6/17/98
to

Himanshu Gohel (go...@csee.usf.eduXX) wrote:
: Hi all:

: I'm trying to open a Yamaha R3 receiver, but the screws are so
: tightly screwed in, I can't seem to open it...of seven, I managed
: to get two off, and on a third one I've almost ruined the head.

: I've put a little WD-40 around the screw hoping to make it a little
: easier but that didn't work either. Pliers can't get a hold of
: the round heads properly.

: Any ideas on how to loosen the screws?

A few tricks that have worked for me, but first, make sure you're using
the right screwdriver. Phillips <> Pozidrv <> JIS !

1) Try _tightening_ the screw a little. Often it'll then come out easily.

2) Put the screwdriver in the screw head and tap the screwdriver handle
sharply with a hammer. Not too hard - you don't want to bend the panel.
That'll often get them started

3) Heating them with a soldering iron sometimes helps (but not if they're
into plastic!)

: Himanshu Gohel, go...@csee.usf.eduXXX | Yeah, Pops was right,

-tony


Marvin Moss

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Jun 17, 1998, 3:00:00 AM6/17/98
to

I have seen a special screwdriver listed in some of the tool catalogs
with a tip that has a sharp beveled edge from the center out on two
sides. You press into the screw and it digs in to the top and is
configured so the harder you push the more it digs in and as you turn
it CCW it digs in more and makes the removal a snap.

Marv


Niall

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Jun 17, 1998, 3:00:00 AM6/17/98
to

On 17 Jun 1998 14:19:19 GMT, go...@csee.usf.eduXX (Himanshu Gohel)
wrote:

>Hi all:
>
>I'm trying to open a Yamaha R3 receiver, but the screws are so
>tightly screwed in, I can't seem to open it...of seven, I managed
>to get two off, and on a third one I've almost ruined the head.
>
>I've put a little WD-40 around the screw hoping to make it a little
>easier but that didn't work either. Pliers can't get a hold of
>the round heads properly.
>
>Any ideas on how to loosen the screws?
>

Too late for you this time, but I find that with very tight screws it
is essential to use exactly the right size of screwdriver with the
blade in good condition. If it looks like being too tight for your
general purpose driver STOP before the head gets damaged and find the
right size driver. Pozidrive heads usually need a driver which looks
far too big for the head.
9 times out of 10 the right size driver will remove the screw
amazingly easy when it felt immovable with the wrong one.
Failing this, use an impact driver if you can do so without damaging
the equipment, or mole grips if the head is grippable.
Finally if there is enough access hacksawing a new slot can work.

--

Niall

Martin Pickering {UK}

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Jun 18, 1998, 3:00:00 AM6/18/98
to

In article <6m8j97$pi3$1...@news.usf.edu>,
go...@csee.usf.eduXX (Himanshu Gohel) wrote:

>I'm trying to open a Yamaha R3 receiver, but the screws are so
>tightly screwed in, I can't seem to open it...of seven, I managed
>to get two off, and on a third one I've almost ruined the head.

Hold the tip of a really hot soldering iron on the screw head for a minute.
This often frees it up.

Kind Regards,

Martin Pickering


Tom MacIntyre

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Jun 18, 1998, 3:00:00 AM6/18/98
to

I don't know if this will help now, but a guy I worked with, a mentor
of mine, told me to always use the biggest Philips head that would fit
properly. The posts about advancing the screw and tapping seem to make
sense to me, too. When it comes to corrosion/rust however, the best
loosener I ever saw was Rustcheck in a spray can. I've seen disk
brake bleeder valves and seized parking brake cables released by this
stuff, and I live in Atlantic Canada, home of the salt-spray, and the
salt-truck!! I don't know what works on Loktite or similar, though.

Tom

go...@csee.usf.eduXX (Himanshu Gohel) wrote:

>Hi all:
>


>I'm trying to open a Yamaha R3 receiver, but the screws are so
>tightly screwed in, I can't seem to open it...of seven, I managed
>to get two off, and on a third one I've almost ruined the head.
>

>I've put a little WD-40 around the screw hoping to make it a little
>easier but that didn't work either. Pliers can't get a hold of
>the round heads properly.
>
>Any ideas on how to loosen the screws?
>

>If you email a copy of your reply, please remove the XXX from my
>address. Thanks!
>
>--

>Himanshu Gohel, go...@csee.usf.eduXXX | Yeah, Pops was right,

Michael A. Covington

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Jun 19, 1998, 3:00:00 AM6/19/98
to

>I'm trying to open a Yamaha R3 receiver, but the screws are so
>tightly screwed in, I can't seem to open it...of seven, I managed
>to get two off, and on a third one I've almost ruined the head.
>
>I've put a little WD-40 around the screw hoping to make it a little
>easier but that didn't work either. Pliers can't get a hold of
>the round heads properly.


(1) Clean off the WD-40.

(2) Use a properly fitting Phillips screwdriver, which is probably much
larger than you'd think. Try a #2 on even the smallest screws in Japanese
equipment.

(3) There's an abrasive substance available at Sears and other places that
will help the screwdriver get a grip. You put a tiny bit of it on the tip
of the screwdriver. Automotive valve-grinding compound is also said to
work.


Bill

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Jun 20, 1998, 3:00:00 AM6/20/98
to

Use small pointed diagonal cutters to grip the edge vertically.

Michael A. Covington <covi...@mindspring.com> wrote in article
<6mf7kt$jh9$1...@camel18.mindspring.com>...

DGArgue

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Jun 20, 1998, 3:00:00 AM6/20/98
to

In article <01bd9bfc$28dedd00$ea7a1ed1@bill-s-computer>, "Bill"
<bbi...@flash.net> writes:

Grind a sharp needle point or chisel point on a masonry nail. Use this with a
light hammer to gently tap the circumference of the screw in the direction you
want it to turn. Sometimes works.
Derry Argue
Firth Productions
Scotland, U.K.

Mark E. Nikl

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Jun 21, 1998, 3:00:00 AM6/21/98
to

Some of these new electronics items may look like a small phillips
screw but are those new torx head screws.
Mark
M&N Electronics


TexTekHank

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Jun 22, 1998, 3:00:00 AM6/22/98
to

In article <199806201619...@ladder01.news.aol.com>, dga...@aol.com
(DGArgue) writes:

>Grind a sharp needle point or chisel point on a masonry nail. Use this with a
>light hammer to gently tap the circumference of the screw in the direction
>you
>want it to turn. Sometimes works.
>D

I've seen a lot of good suggestions, but most won't work if
the screw is at the end of a tunnel, as many are that attach
a rear case. If I can't get it loose quickly with my screw driver,
I resort to a sure-fire method -- Use an over-size drill bit to grind
off the screw head. Screws are cheap and you can remove
the remains of the screw easily with a vise-grip when you get
the back off.

Hank S

Don Wall

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Jun 23, 1998, 3:00:00 AM6/23/98
to go...@csee.usf.eduxxx

I run into this frequently with Japanese car stereo mounting brackets on
the side of the radio. My solution is to use an impact wrench, air
-powered 3/8" drive, with a 1/4" drive socket and a Phillips screwdriver
tip in it. I have found it's the only way to get them out without
ruining the head. The constant jarring of the impact wrench loosens
them, whereas steady pressure causes your screwdriver to slip. I believe
they are installed with impact wrenches at the factory to speed up
production. There are electric impact wrenches available also.

Don Wall

Nigel Cook

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Jun 28, 1998, 3:00:00 AM6/28/98
to

Just to add my halfpennyworth,I've seen no reference in
the case of exposed heads to cutting a flat blade slot in the
head with a hacksaw or small edge-type grinding wheel.Maybe
it is possible to convert to smaller blades those tools with hex-shank
screw bits mounted in a substantial metal handle with a heavy
duty rotational spring inside that you clout with a hammer.

Diverse Devices,Southampton,England;telephone (+44) (-0)1703 584680
(Shop stocking obscure/obsolete components,second hand test equipment,schematics etc)
Postal: 75 Priory Rd,St Denys,Southampton,England SO17 2JQ.
email div...@tcp.co.uk
repair briefs and hints/tips on homepage http://homepages.tcp.co.uk/~diverse/
regards, Nigel

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