Help rounded off cylinder head bolt

N

Nick

Guest

• May 30, 2006

• #1

Hi guys,

The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off when
the socket slipped during removal, has anyone here had the same problem and
if so, how did you fix it?
As it is the rear most bolt I am going to get a mate to help me to try to
rotate the head on the bolt and hope it loosens off. If anyone has had any
success with those elliptical roller type socket things I would be
interested to hear.

Thanks
--

Nick

 

N

Nick

Guest

• May 30, 2006

• #2

"Nick" <[email protected]> wrote in message
news:z2%[email protected]...
> Hi guys,
>
> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
> when the socket slipped during removal, has anyone here had the same
> problem and if so, how did you fix it?
> As it is the rear most bolt I am going to get a mate to help me to try to
> rotate the head on the bolt and hope it loosens off. If anyone has had any
> success with those elliptical roller type socket things I would be
> interested to hear.
>
> Thanks
> --
>
> Nick

Yes I am the same Nick who posted about replacing the cyl head gasket, You
can see how it's going from this!!

Thanks for the advice.

--

Nick

 

B

Badger

Guest

• May 30, 2006

• #3

"Nick" <[email protected]> wrote in message
news:Y4%[email protected]...
>
> "Nick" <[email protected]> wrote in message
> news:z2%[email protected]...
>> Hi guys,
>>
>> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
>> when the socket slipped during removal, has anyone here had the same
>> problem and if so, how did you fix it?
>> As it is the rear most bolt I am going to get a mate to help me to try to
>> rotate the head on the bolt and hope it loosens off. If anyone has had
>> any success with those elliptical roller type socket things I would be
>> interested to hear.
>>
>> Thanks
>> --
>>
>> Nick
>
> Yes I am the same Nick who posted about replacing the cyl head gasket,
> You can see how it's going from this!!
>
> Thanks for the advice.

Nick, try a 16mm hex socket, not a bi-hex, it might just bite enough. I had
a rounded head bolt once on an engine I was rebuilding for a customer and it
came out ok with a 16mm surface-drive type.
Badger.

 

N

Nick

Guest

• May 30, 2006

• #4

"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> "Nick" <[email protected]> wrote in message
> news:Y4%[email protected]...
>>
>> "Nick" <[email protected]> wrote in message
>> news:z2%[email protected]...
>>> Hi guys,
>>>
>>> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
>>> when the socket slipped during removal, has anyone here had the same
>>> problem and if so, how did you fix it?
>>> As it is the rear most bolt I am going to get a mate to help me to try
>>> to rotate the head on the bolt and hope it loosens off. If anyone has
>>> had any success with those elliptical roller type socket things I would
>>> be interested to hear.
>>>
>>> Thanks
>>> --
>>>
>>> Nick
>>
>> Yes I am the same Nick who posted about replacing the cyl head gasket,
>> You can see how it's going from this!!
>>
>> Thanks for the advice.
>
> Nick, try a 16mm hex socket, not a bi-hex, it might just bite enough. I
> had a rounded head bolt once on an engine I was rebuilding for a customer
> and it came out ok with a 16mm surface-drive type.
> Badger.

Hi Badger,

Do you mean the type with 6 flat sides rather than a conventional multi
sided socket?

--

Nick

 

B

Badger

Guest

• May 30, 2006

• #5

"Nick" <[email protected]> wrote in message
news:dF%[email protected]...
>
> "Badger" <[email protected]> wrote in message
> news:[email protected]...
>>
>> "Nick" <[email protected]> wrote in message
>> news:Y4%[email protected]...
>>>
>>> "Nick" <[email protected]> wrote in message
>>> news:z2%[email protected]...
>>>> Hi guys,
>>>>
>>>> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
>>>> when the socket slipped during removal, has anyone here had the same
>>>> problem and if so, how did you fix it?
>>>> As it is the rear most bolt I am going to get a mate to help me to try
>>>> to rotate the head on the bolt and hope it loosens off. If anyone has
>>>> had any success with those elliptical roller type socket things I would
>>>> be interested to hear.
>>>>
>>>> Thanks
>>>> --
>>>>
>>>> Nick
>>>
>>> Yes I am the same Nick who posted about replacing the cyl head gasket,
>>> You can see how it's going from this!!
>>>
>>> Thanks for the advice.
>>
>> Nick, try a 16mm hex socket, not a bi-hex, it might just bite enough. I
>> had a rounded head bolt once on an engine I was rebuilding for a customer
>> and it came out ok with a 16mm surface-drive type.
>> Badger.
>
> Hi Badger,
>
> Do you mean the type with 6 flat sides rather than a conventional multi
> sided socket?

Yes.

 

D

Doorbell

Guest

• May 30, 2006

• #6

Get one thats used with impact drives. They have a thick wall, 6 sides and
are almost unbreakable. I know that Partco sell them to Kwick-Fit and we all
know how tight Kwick-Fit do up nuts. They are quite expensive compared to
hobby ones and are probably only available from garage motor factors not
domestic suppliers like Halfords.


"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> "Nick" <[email protected]> wrote in message
> news:dF%[email protected]...
>>
>> "Badger" <[email protected]> wrote in message
>> news:[email protected]...
>>>
>>> "Nick" <[email protected]> wrote in message
>>> news:Y4%[email protected]...
>>>>
>>>> "Nick" <[email protected]> wrote in message
>>>> news:z2%[email protected]...
>>>>> Hi guys,
>>>>>
>>>>> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
>>>>> when the socket slipped during removal, has anyone here had the same
>>>>> problem and if so, how did you fix it?
>>>>> As it is the rear most bolt I am going to get a mate to help me to try
>>>>> to rotate the head on the bolt and hope it loosens off. If anyone has
>>>>> had any success with those elliptical roller type socket things I
>>>>> would be interested to hear.
>>>>>
>>>>> Thanks
>>>>> --
>>>>>
>>>>> Nick
>>>>
>>>> Yes I am the same Nick who posted about replacing the cyl head gasket,
>>>> You can see how it's going from this!!
>>>>
>>>> Thanks for the advice.
>>>
>>> Nick, try a 16mm hex socket, not a bi-hex, it might just bite enough. I
>>> had a rounded head bolt once on an engine I was rebuilding for a
>>> customer and it came out ok with a 16mm surface-drive type.
>>> Badger.
>>
>> Hi Badger,
>>
>> Do you mean the type with 6 flat sides rather than a conventional multi
>> sided socket?
>
> Yes.
>

 

A

Austin Shackles

Guest

• May 30, 2006

• #7

On or around Tue, 30 May 2006 17:54:17 GMT, "Nick" <[email protected]>
enlightened us thusly:

>
>Hi Badger,
>
>Do you mean the type with 6 flat sides rather than a conventional multi
>sided socket?

only sort of sockets to go for, IMHO. I hate 12-point sockets.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"The breezy call of incense-breathing Morn, The swallow twittering
from the strawbuilt shed, The cock's shrill clarion, or the echoing
horn, No more shall rouse them from their lowly bed."
Thomas Gray, Elegy Written in a Country Churchyard.

 

D

Derek

Guest

• May 30, 2006

• #8

"Doorbell" <[email protected]> wrote in message
news:[email protected]...
> Get one thats used with impact drives. They have a thick wall, 6 sides and
> are almost unbreakable. I know that Partco sell them to Kwick-Fit and we
> all know how tight Kwick-Fit do up nuts. They are quite expensive compared
> to hobby ones and are probably only available from garage motor factors
> not domestic suppliers like Halfords.
>
the only loose nuts at kwik fit are the ones wearing overalls.
Derek

 

D

Derek

Guest

• May 30, 2006

• #9

"Austin Shackles" <[email protected]> wrote in message
news:[email protected]...
> On or around Tue, 30 May 2006 17:54:17 GMT, "Nick" <[email protected]>
> enlightened us thusly:
>
>>
>>Hi Badger,
>>
>>Do you mean the type with 6 flat sides rather than a conventional multi
>>sided socket?
>
> only sort of sockets to go for, IMHO. I hate 12-point sockets.
> --
> Austin Shackles. www.ddol-las.net my opinions are just that
> "The breezy call of incense-breathing Morn, The swallow twittering
> from the strawbuilt shed, The cock's shrill clarion, or the echoing
> horn, No more shall rouse them from their lowly bed."
> Thomas Gray, Elegy Written in a Country Churchyard.

Seconded more grip- beware if you buy flat drive sockets at Machine Mart
the deep a/f set are certainly not what they are supposed to be where the
metric are very odd . Most impact drive sets come with some decent hex
sockets painted tho not chromed.

Derek
Found a cure for droughts I just say I'll pop out and replace the fluid /oil
in........... and it p*ss*s down

 

A

Alex

Guest

• May 30, 2006

• #10

>Seconded more grip- beware if you buy flat drive sockets at Machine Mart
>the deep a/f set are certainly not what they are supposed to be where the
>metric are very odd . Most impact drive sets come with some decent hex
>sockets painted tho not chromed.
>

I find you can't beat those (black) high-impact molybendum surface
drive sockets. The bi-hex ones just round the corners off tight nuts.
Can be a bugger in confined spaces where you can't get 1/6th turn at
one go without moving the socket round though.

Alex

 

R

R L driver

Guest

• May 31, 2006

• #11

Alex wrote:
>> Seconded more grip- beware if you buy flat drive sockets at Machine Mart
>> the deep a/f set are certainly not what they are supposed to be where the
>> metric are very odd . Most impact drive sets come with some decent hex
>> sockets painted tho not chromed.
>>
>
> I find you can't beat those (black) high-impact molybendum surface
> drive sockets. The bi-hex ones just round the corners off tight nuts.
> Can be a bugger in confined spaces where you can't get 1/6th turn at
> one go without moving the socket round though.
>
> Alex

Whats the point of 12 pointed sockets when everyone owns a ratchet???
Six pointed ones are sooooo much better .
I was just testing as I know the answer to the question is "cheapness
of manufacture"
Steve the grease

 

K

Karen Gallagher

Guest

• May 31, 2006

• #12

R L driver wrote:
> Alex wrote:
>>> Seconded more grip- beware if you buy flat drive sockets at Machine
>>> Mart the deep a/f set are certainly not what they are supposed to
>>> be where the metric are very odd . Most impact drive sets come with
>>> some decent hex sockets painted tho not chromed.
>>>
>>
>> I find you can't beat those (black) high-impact molybendum surface
>> drive sockets. The bi-hex ones just round the corners off tight nuts.
>> Can be a bugger in confined spaces where you can't get 1/6th turn at
>> one go without moving the socket round though.
>>
>> Alex
>
> Whats the point of 12 pointed sockets when everyone owns a ratchet???
> Six pointed ones are sooooo much better .
> I was just testing as I know the answer to the question is "cheapness
> of manufacture"
> Steve the grease

I use both 6 & 12 sided ones - I use the six whenever I can, but sometimes I
need a long lever bar rather than use a ratchet, and the 12 sided then gives
me a little more chance of getting a part turn in when in a tight spot. And,
of course, no one seems to make six sided ones in Whit sizes, not all metric
or a/f sizes are near enough, but I can still get Whit sized sockets in 12
sided.

Karen

Karen

--
"I'd far rather be happy than right any day."
- Slartibartfast

 

O

[email protected]

Guest

• May 31, 2006

• #13

As the bolt is knackered and you will probably replace it you have 2
options ,weld a nut on top of the bolt this will give you something
to grip and the heat will free the bolt up a bit or drill the head of
the bolt and take the cylinder head of and then try mole gips , weld a
big nut / bar etc to the bolt

Its not finished till the wife says it crap

Karen Gallagher wrote:
> R L driver wrote:
> > Alex wrote:
> >>> Seconded more grip- beware if you buy flat drive sockets at Machine
> >>> Mart the deep a/f set are certainly not what they are supposed to
> >>> be where the metric are very odd . Most impact drive sets come with
> >>> some decent hex sockets painted tho not chromed.
> >>>
> >>
> >> I find you can't beat those (black) high-impact molybendum surface
> >> drive sockets. The bi-hex ones just round the corners off tight nuts.
> >> Can be a bugger in confined spaces where you can't get 1/6th turn at
> >> one go without moving the socket round though.
> >>
> >> Alex
> >
> > Whats the point of 12 pointed sockets when everyone owns a ratchet???
> > Six pointed ones are sooooo much better .
> > I was just testing as I know the answer to the question is "cheapness
> > of manufacture"
> > Steve the grease
>
> I use both 6 & 12 sided ones - I use the six whenever I can, but sometimes I
> need a long lever bar rather than use a ratchet, and the 12 sided then gives
> me a little more chance of getting a part turn in when in a tight spot. And,
> of course, no one seems to make six sided ones in Whit sizes, not all metric
> or a/f sizes are near enough, but I can still get Whit sized sockets in 12
> sided.
>
> Karen
>
> Karen
>
> --
> "I'd far rather be happy than right any day."
> - Slartibartfast

 

J

Jack

Guest

• May 31, 2006

• #14

"R L driver" <[email protected]> wrote in message
news:[email protected]...
> Whats the point of 12 pointed sockets when everyone owns a ratchet???
> Six pointed ones are sooooo much better .
> I was just testing as I know the answer to the question is "cheapness of
> manufacture"
> Steve the grease

Steve:

The bolts that hold the brake caliper to the axle are 12 sided. Thus, a 6 -
sided will not do the trick.

Jack

 

J

Jack

Guest

• May 31, 2006

• #15

"Nick" <[email protected]> wrote in message
news:z2%[email protected]...
> Hi guys,
>
> The backmost bolt on the LH cylinder head on my 3.9 RR has rounded off
> when the socket slipped during removal, has anyone here had the same
> problem and if so, how did you fix it?
> As it is the rear most bolt I am going to get a mate to help me to try to
> rotate the head on the bolt and hope it loosens off. If anyone has had any
> success with those elliptical roller type socket things I would be
> interested to hear.
>
> Thanks
> --
>
> Nick
>

Nick:

Turning the head to get leverage is a bad idea. Heads are typically located
with pins and will not rotate as you describe. Subsequently, two methods are
used to take out stripped bolts:

1: Hammer a socket 1 size below the recommended size, use ratchet as
previously attempted.
2: Drill it and use an easy-out (extractor). Be sure not to put too much
leverage behind the extractor otherwise it may shear off and really "screw"
you. Sometimes applying gentle heat will help with extraction.

God luck, Jack

 

E

EMB

Guest

• Jun 8, 2006

• #16

Karen Gallagher wrote:

> I use both 6 & 12 sided ones - I use the six whenever I can, but sometimes I
> need a long lever bar rather than use a ratchet, and the 12 sided then gives
> me a little more chance of getting a part turn in when in a tight spot. And,
> of course, no one seems to make six sided ones in Whit sizes,

They are available as impact sockets - I've got a couple of sets. The
local supplier I got them from no longer seems to exist, but they
available online

http://www.ar-sheldon.com/acatalog/King-Dick-Impact-Sockets.html



--
EMB