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Stripped Philips head 10mmimg bolt to remove

ukjules

ukjules

Forum Sage
I have a tough philips head screw that goes in the top of the carburettors to remove.
I am soaking it in WD-40 overnight and I'm having to buy a better impact driver tomorrow.

On four carburettors I have three Phillips head screws that's are in danger of heads being stripped making them impossible to turn.

Any thoughts on slick ways to remove them. ?
I have loads of things to get bolts out but not really these.

I am of course replacing them.all with hex bolts.
 

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I have used 4 inch 'vice grip' locking pliars. No evil damage to screw heads.

If the screws are original...they are not philips. They are JIS. Jules, I figure you do know that. Subtle design difference...but the proper JIS screw driver for the OEM fasteners will probably do the 'trick'
 
Just say'in, pretty sure those screws aren't Philips, but JIS (Japanese Industrial Standard). They are similar to Philips but different... A correct size JIS screwdriver set, or JIS impact bit set, should save you a bunch of headaches, now and later.... Also appears maybe (hopefully) enough room to get a 4" vice-grip to clamp on the edge of that screw.
 
From factory they should be J.I.S screws, not Philips, J.I.S is indicated by a small dot on the screw head usually. Also WD-40 sucks as a penetrating oil, use a proper penetrating oil.

Of-course the proper diamond tipped J.I.S screwdrives helps but I got myself a T-handle years ago and it has saved my ass multiple times, the leverage helps. See photo below for what I mean:
1791229263444.png

As to getting them out, I would try using a sharp chisel and small hammer to get them going.
 
Yep your all right it is jis... I have madly never ever used a jis screwdriver ...... Time I did for sure !!!
Iv only just in seriousness religiously started to use pz ones instead of buggering wood screws with Philips.....

I'll order some ..didn't know you could get them for an impact driver either.

I have just found my old box of things to sort stripped things. I think I can do this with them or with methods suggested
 
I cut slots with a dremel into stuck screws and use a flat tip. Its gonna need replaced anyway so go gangster on it.
 
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