hi guys
one off my lower engine mounting bolts head has rounded off
its the last one to loosen to drop engine on my nc21 to put new collector
box on
tryed everything
mole grips pro socket impact socket any ideas
cheers
rounded off bolt head
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Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
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bullitt
- Settled in member
- Posts: 55
- Joined: Thu Sep 22, 2011 12:03 pm
- Bike owned: vfr400 nc21
- Location: southampton
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bikemonkey
- NWAA Supporter
- Posts: 1521
- Joined: Tue Dec 27, 2011 12:33 pm
- Bike owned: 92 NC30, 90 VFR750
- Location: Oxfordshire
Re: rounded off bolt head
Tried heat and hitting it?
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lizard821000
- Site Supporter
- Posts: 903
- Joined: Thu Feb 03, 2011 5:33 pm
- Bike owned: nsr ,cagiva mito , vfr 400 R3L
- Location: portsmouth
Re: rounded off bolt head
+1
heat it up, then spray penitrating fluid on it, then hit it.
heat it up, then spray penitrating fluid on it, then hit it.
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thunderace
- Site Supporter
- Posts: 1584
- Joined: Fri Sep 10, 2010 9:03 pm
- Bike owned: R6, YZF600R
- Location: Blackburn, Lancs.
Re: rounded off bolt head
Centre punch the head then drill it off.
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.
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bullitt
- Settled in member
- Posts: 55
- Joined: Thu Sep 22, 2011 12:03 pm
- Bike owned: vfr400 nc21
- Location: southampton
Re: rounded off bolt head
cheers guys will give this a go during the week
i"ve been told about these easy out sockets anyone used them
thanks again
i"ve been told about these easy out sockets anyone used them
thanks again
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scotjell
- Regular Member
- Posts: 501
- Joined: Mon Aug 18, 2008 7:33 pm
- Bike owned: VFR400 NC30x2
- Location: Bristol
Re: rounded off bolt head
Also as it's the last bolt it may also help to support the weight as this will also put load on the bolt which will make it tighter/harder to move. Get some plus gas penatron anything like that. What size head is it could you go for an imperial size? or dremmel some flats on it is a possibility.