boost mad

iTrader: (8)

ok. gone to take the head off of my 2wd cossie and i cant get one of the bolts out becuase the head is chewed... u can just get a bit in there but when u turn it it just jumps up.

any ideas as the car has been off the road for 2 weeks aready

cheers

jon@work

iTrader: (5)

Find the biggest drill bit that will just fit within the splines without damaging them - then drill down a couple of mm. Your tool may now fit OK.

If this doesn't work, carefully drill the head off the bolt using progressively larger drill bits.

boost mad

iTrader: (8)

any slightly less dangerous ideas

i will keep that in mind but its gona have to be a last resort

cheers

righthooker

can you get anythig on it ,like mole grips ?

Karl

Sounds to me like your not using the correct tools?

What exactly are you using to try to undo the head bolt? (Exact spec and details of bit)

boost mad

iTrader: (8)

its a 12 point torx bit ( size t55 )

cant get anything around it as it is set down in the head

the rest have come out fine, its just this one ( at the back on the exhaust side

rs graham

if the cams and everything is out way,maybe a pair of stilsons ! they will kill the bolt but should undo it.

also loctite make a tin of spray called freeze. its 5 quid a can,and when you spray it on a bolt it drops the temperature down,making it less tight in the hole!

iv only used this once but it did work for me.

boost mad

iTrader: (8)

cant get stillsons or anything like that around it as it is recessed into the head, u wudnt even be able to get ur fingers round it

rs graham

shit. cant remember what it looks like !

boost mad

iTrader: (8)

imagine trying to twist a bolt that was deep inside ur arse

Sketch

Out of interest, how long is the bit that you are using?

My brother and I found out the hard way that if you dont use quite a long bit, that the head bolts by the bulkhead round their heads off as the socket part of the bit touches the head before the bit is fully into the head bolt, hence it fucks the bolt up. I had to drill the bolts out in the end

Check to see that this isnt happening.....

boost mad

iTrader: (8)

i will have a check mate, but i think the bit is long enough

cheers

anyone else