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Rye
 Post subject: Crankshaft nut
PostPosted: Tue Feb 07, 2012 10:22 am 
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Bit of a basic question but I can't see it answered anywhere - is the crankshaft nut on a 2.7 loosened in the usual anti clockwise direction? I'm trying to get mine off so I can change the belts but it won't budge, so before I apply more force or an impact wrench I thought I'd check I'm turning it the right way!

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jameso
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 12:05 pm 
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Normal direction thread.

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Richy_S
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 1:37 pm 
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Yes acw, I needed a 5ft pipe on the end of the bar to shift mine +3/4" drive.

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Rye
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 2:04 pm 
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Cheers gents. I used a big torque wrench on it and a bar extending it by another foot and still couldn't shift it - the whole car was shifting on the chassis stands rather than the nut turning, very frustrating. Plus I bent my screwdriver which I was using to lock the flywheel.

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bigdavec
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 2:46 pm 
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is this the one you can jam a big bar on and undo with the starter ?! :oops:
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tr7v8
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 2:49 pm 
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Yup conventional nut so undo ACW. This in my view is the one special tool needed, a flywheel locking tool as it iis just too FT to undo by any of the normal bodges.

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A9XXC
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 3:38 pm 
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My old 2.5' s wasn't even finger tight :(

Had worn a the keyway into a one about 3 times the size, no wonder it was vibrating a bit.

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tr7v8
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 3:54 pm 
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A9XXC wrote:
My old 2.5' s wasn't even finger tight :(

Had worn a the keyway into a one about 3 times the size, no wonder it was vibrating a bit.

Damn lucky the oil pump drive is by friction, when the nut comes undone, no oil pump adios engine :evil:

Crap design basically!

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Rye
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 4:44 pm 
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I don't think I'll be trying the starter motor option, sounds a bit risky plus the starter motor is off so I can lock the flywheel (easier than going in the clutch inspection window I've found).

I'll be buying a new deep 24mm socket as then I'll be able to clear the obstruction I have and get a proper lenth breaker bar on it.

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A9XXC
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 6:49 pm 
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Where abouts in the country are you - I have a 3/4" drive set if you are anywhere near Leicester.

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Althejazzman
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 8:55 pm 
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Can an impact wrench help with this, due to the minimal torque reaction?

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Rye
 Post subject: Re: Crankshaft nut
PostPosted: Tue Feb 07, 2012 10:29 pm 
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I'm in Manchester but thanks for the offer! If I can't get it with a big breakers bar then I'll be purchasing an impact wrench!

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Althejazzman
 Post subject: Re: Crankshaft nut
PostPosted: Wed Feb 08, 2012 9:31 am 
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I can wholeheartedly recommend this Sealey impact wrench. Fantastic value for money, and absolutely solid:

http://www.amazon.co.uk/Sealey-CP2400-C ... 451&sr=8-2

Image

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Alex.
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'01 Vauxhall Combo diesel van for camping, working, and moving slowly

Computer Problems: At your WITS End? http://www.witscomputers.co.uk

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Richy_S
 Post subject: Re: Crankshaft nut
PostPosted: Wed Feb 08, 2012 9:43 am 
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I've got one of those as well but it wont do the crank bolt.
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Althejazzman
 Post subject: Re: Crankshaft nut
PostPosted: Wed Feb 08, 2012 9:52 am 
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Quote:
it wont do the crank bolt


Wow ok, I underestimate the torque of a crank bolt.

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Alex.
'85 944 mostly working
'83 924 "Yin Yang" cheap track car with another member
'01 Vauxhall Combo diesel van for camping, working, and moving slowly

Computer Problems: At your WITS End? http://www.witscomputers.co.uk

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