what to do with 'damaged' screw?

[sam1741]

hi all...

just now i try to take out 6 screw to remove and replace the camm cover.. :(

then one of the screw too tight
when i screw
cannot open

then the '+' gone already.. become 'O'
what to do...? :(

 

[tykoh]

ask welder to weld a nut on top of it and unscrew it... :)

 

[sam1741]

wah... many things around that small screw..
dono how to do it ler... :(

 

[jombiee]

i'm not aware there are cam cover ?(rocker cover ?) tightened with screws, usually using bolts, or maybe i'm wrong, anyway you could try to use an impact driver.

 

[khguan]

i tot cam cover use 10mm bolts? other than using screwdriver u can use 10mm wrench mah...

 

[simefly]

this is what i usually do... but its at your own risk tho.

Take a small nail and punch a hole on the top of the screw. Make sure that the hole is deep enough. Next step, is to use an ice pick / sharp '-' screw driver. Place the edge at the hole that you have 'knocked'. Slowly hammer the ice pick / screw driver anti clock wise. Make sure that you do not knock too hard... Slow and Steady is the key word to this.

Try it, but if it fails then you must use tykoh's method.

 

[sam1741]

oic... later i try the 'nail' method..


i driving 120y ...
my cover is hold by 6 screw...
(dono how many mm though)

 

[SpeedWanker]

try this..go to a hardware shope n buy a stud remover/stud exractor/spiral flute extractor, not very expensive the china ones,then drill a small hole dead center on the bolt then drive this extractor in and the bolt will be screwed out.. here's the page if u wana view what it looks like..

http://buy1.snapon.com/catalog/item.asp?item_ID=10474&group_ID=1261

 

[sam1741]

try this..go to a hardware shope n buy a stud remover/stud exractor/spiral flute extractor, not very expensive the china ones,then drill a small hole dead center on the bolt then drive this extractor in and the bolt will be screwed out.. here's the page if u wana view what it looks like..

http://buy1.snapon.com/catalog/item.asp?item_ID=10474&group_ID=1261

so.. how this things works one?
it looks just like a drill bit..
the screw really tight...

 

[jombiee]

after you drill a hole, just wrench in the tools/extraxtor into the hole anticlockwise(like unscrew), the tools will goes in while ur screw will be untightened/loosen, but will be a bit hard if ur screw are too small, just make sure u buy a right size, maybe you should bring a sample screw to the hardware & they can help you to choose the right one.

 

[sam1741]

wow..
then dono will work or not

my screw rather small...
the head's diameter is just about 1cm++
so the screw thread body will be <1cm in diameter....

 

[sam1741]

hi all....

just now i take to a bike mechanic to open .. :D
now is open already

he use hammer n nail create deeper "+'
and us bigger screw driver to open.. :D


anyway.. :(
morning i loose some screw forget to screw tight..
now my engine bay got oil leaking problem.. :(
sigh..

 

[drexchan]

i use hex-key.

It's easier if you have a electrical drill. Find a suitable hex-key and slowly knock it into the "O" hole and drive it anti-clock wise to unscrew the damaged screw. Make sure you use the slowest speed initially, if it doesn't move, increase the speed gradually.

Did this many time before. 100% works.

 

[sam1741]

hex key...
is those 'L' shape thing?

 

[jaywat]

If u r using drill...then u cannot use the L shape hex key already

 

[drexchan]

sometime it's better to use the star-shape key.

 

[sam1741]

oic...
better keep one set :)

 

[khguan]

sometime it's better to use the star-shape key.

dats is called the Torx screwdriver

 

[drexchan]

yalar i know.. but how many can understand that? haha!!

 

[jaywat]

muahahahahahha....flower screw...