27mm socket - what is nearest size in imperial measurements?

[SilverSaloon]

Hi

I've got to get a 27mm socket.

Anyone know whats the socket size in imperial measurement?

thanks

derek

 

[Will]

Ermm - I'm sure they're will be a close match, but is it worth the risk?

Can't you just buy a fairly-ok quality cheapish socket of the correct size?

Shouldn't be expensive.

Is this for the crank pulley or something?

Will

 

[SilverSaloon]

Ermm - I'm sure they're will be a close match, but is it worth the risk?

Can't you just buy a fairly-ok quality cheapish socket of the correct size?

Shouldn't be expensive.

Is this for the crank pulley or something?

Will

yeah. my mate has a toolbox full of sockets so i just wondered if those would be a perfect fit if i got the right size.

otherwise Halfords sell them for £5 so i'll just get one of those....

 

[Will]

For a fiver I wouldn't risk it!

Will

 

[harveyn]

I think it would be a 1' 1/16th...this would be fractionally smaller, if my maths is right

 

[Dieselman]

I think it would be a 1' 1/16th...this would be fractionally smaller, if my maths is right

That would be a very snug fit at 26.99mm, so if it would go on would be a good one to use.

 

[W210 Fan]

I think it would be a 1' 1/16th...this would be fractionally smaller, if my maths is right

yep thats right, it is only 13 microns out, or 0.013 of a millimetre or half a thou in old money, which is considerably less than the tolerance of a socket at this size so you will be ok, if you can find a 1 ` 1/16th socket...

 

[Number_Cruncher]

Derek,

You are making really heavy weather of the easy bits of this job, and you're skimping where there's no need to.

You're already saving over £150 compared with getting a garage to do this work, so a few quid on a socket isn't worth the hassle - especially as the crank bolt is one of the tightest on the car!

 

[Dieselman]

His friend already has a host of imperial sockets, so if one fits he might as well use it for a one off job.

 

[Smiley]

The imperial socket in an old tool box probably stems from an era when tools were made to last and will therefore not snap when it is under load - unlike some of the cheap stuff today.

 

[SilverSaloon]

His friend already has a host of imperial sockets, so if one fits he might as well use it for a one off job.

this is what i figured. if one is a perfect fit (or maybe if he has the one mentioned above) a better fit, then surly its worth it - possibly better than a new one???

the sockets he has are good quality made years ago when things were engineered to last (hopefully!)

if he hasnt got the one mentioned above, i'll buy a new 27mm.

thanks for the help

 

[racall]

Is it the 27mm injector deep socket you are after???

 

[SilverSaloon]

Is it the 27mm injector deep socket you are after???

dont think so - its for a crankshaft bolt. I assume a normal socket would fit.

Halfords sell both - maybe a deep one is best for this job thinking about it due to the dish-shape of the pully?

 

[Will]

Fair enough if the socket is of good quality and is a better than normal fit (ie 26.99mm).

But you know where I'm coming from - cowboy bodgers using any old socket that fits (ie normally 1/2mm too big etc), causing nuts to be rounded off, etc.

Just for something like a crank pulley I wouldn't want people to cause a problem. Fortunately it seems Derek has hopefully got this sorted though

Will

 

[SilverSaloon]

i certainly wouldnt use any old socket that roughly fitted. Hence why i started the thread.

 

[Will]

i certainly wouldnt use any old socket that roughly fitted. Hence why i started the thread.

Yes, but that wasn't 100% obvious at the start, and I bet there are many people out there who would

Will

 

[Dieselman]

maybe a deep one is best for this job thinking about it due to the dish-shape of the pully?

Space is tight and you need a lot of leverage so a shallow socket is best if it will clear the pulley, which I'm sure it will.

 

[SilverSaloon]

Space is tight and you need a lot of leverage so a shallow socket is best if it will clear the pulley, which I'm sure it will.

i know my extendable socket wrench will as it has like a curvey bit at the end.

i'm not sure about the torque wrench though as it dead straight. i've got a small extension bar though.

 

[Will]

I agree - never been a problem using a regular depth shallow 27mm socket on the MBs I have worked on.

If you need a little extra length to clear the pulley for whatever reason, use a very small extension.

Will

 

[kth286]

Derek

How you planning to lock the engine/stop it turning ?????????