Cylinder Head Bolt size

[e635815]

Dead all,
I Need to take my off side cylinder head off.
The first plug didn't go as planned and the thread is now f@@@@@.
There are two rows of head bolts with the integrated washer.
Been trying to use a 14mm socket but they don't want to move at all.
I suspect 14mm isn't the right dimension and it should be an imperial size instead.
Does anybody know for sure what socket size I should be using for these?
Thanks and regards
Philippe

[e635815]

Ok, very good inputs. Thanks a lot for your inputs.
But What about the bolt head size, is is the 14mm or the Imperial equivalent?
Also, you are talking about the correct sequence of removal but what is it exactly, this order?
Thanks a lot for the info.
Philippe

[e635815]

Ok, very good inputs. Thanks a lot for your inputs.
But What about the bolt head size, is is the 14mm or the Imperial equivalent?
Also, you are talking about the correct sequence of removal but what is it exactly, this order?
Thanks a lot for the info.
Philippe

[e635815]

Shame on us!
Shame in me for having mistaken 14mm and 16mm.
Shame on you for not spotting my mistake and talking about 9/16" when the actual socket size I need is 5/8".
Now I have a beautiful 14mm long Facom socket which I will probably never use 😂

Back to Amazon to procure the right one..... next time I'll check upon reception of the tool instead of wasting another two weeks.

More to come at the next episode.

[e635815]

Shame on us!
Shame in me for having mistaken 14mm and 16mm.
Shame on you for not spotting my mistake and talking about 9/16" when the actual socket size I need is 5/8".
Now I have a beautiful 14mm long Facom socket which I will probably never use 😂

Back to Amazon to procure the right one..... next time I'll check upon reception of the tool instead of wasting another two weeks.

More to come at the next episode.

[e635815]

Job's not done yet. I have ordered the correct size socket and awaiting delivery.
Well well well... I have lost all hops to finish the car on time for the driving season
Never mind, at this rate I'll have the complete set of long 6-points socket before the Chim is again on its wheels.

[e635815]

Discopotatoes said:

I would have thought if you were attempting to remove the heads you would be competent enough to measure the head of the bolt yourself and have a full set of imperial and metric sockets a breaker bar and a torque wrench. if not how to you expect that jobs going to end up, apart from in tears?

I consider myself competent enough. And no, I don't have a full set of Imperial sockets but Yes, I do have breaker bar and torque wrench and everything else.
But I reserve myself the right to have other things going on in my life which occupy my brain and by the time I walk from the garage to the house, that 16 mm socket became a 14 mm in my brain.

The engine benefited from a cam change, re timing etc.... which ended-up me driving to Le Mans and back faultlessly. No skills shortage here. Thanks for asking....