Cylinder Head torquing

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Offshore
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Cylinder Head torquing

Postby Offshore » Sun Nov 22, 2015 7:03 pm

Having steam cleaned engine and bay and also replaced the timing seal and cover I find I have a weeping cylinder head at the front end over cylinder 1 (radiator end).

Do I simply torque down the relevant bolts or am I looking at a more complicated procedure or even replace the gasket?

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PSL184
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Re: Cylinder Head torquing

Postby PSL184 » Sun Nov 22, 2015 7:21 pm

Is it head to block? If so, new gasket required.
If however, it is rocker cover to head, just clean and seal with a thin smear of liquid gasket assuming the cork seal hasn't been squashed flat by over tightening.
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Re: Cylinder Head torquing

Postby Offshore » Sun Nov 22, 2015 9:09 pm

It's head to block. Rocker cover seems fine.

Never removed a cylinder head. No where did I put that manual?

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PSL184
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Re: Cylinder Head torquing

Postby PSL184 » Sun Nov 22, 2015 9:22 pm

Thinking about this further, I'd just re-torque the head and keep my eye on it. The oil way is outside of the cylinder bores so it could go on for quite a while before you got any adverse effects to performance.
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Re: Cylinder Head torquing

Postby bmcecosse » Sun Nov 22, 2015 9:39 pm

Pull it down evenly to 44 ft lbf and cross your fingers. Was the head disturbed recently ?
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Re: Cylinder Head torquing

Postby Offshore » Mon Nov 23, 2015 2:53 pm

Thanks guys. Cylinder head not been off in my ownership of 30 months.

I assume I re-torque all head bolts starting in the middle and working out spirally?

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PSL184
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Re: Cylinder Head torquing

Postby PSL184 » Mon Nov 23, 2015 6:12 pm

Yes, that is correct.
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Re: Cylinder Head torquing

Postby philthehill » Mon Nov 23, 2015 7:26 pm

This is the correct sequence of undoing and doing up/setting the torque of the 9 stud cylinder head nuts.[frame]Image[/frame]
Some other workshop manuals start the tightening sequence at No: 2 above but the schematic is as recommended in the Minor Wksp manual section AA Fig: AA5.


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Re: Cylinder Head torquing

Postby Offshore » Mon Nov 23, 2015 8:55 pm

Thanks guys esp Philthehill for the drawing. My working spirally would have been a bit different! Will report back in a few weeks to see what the results are.

Cheers for now.

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Re: Cylinder Head torquing

Postby bmcecosse » Mon Nov 23, 2015 9:08 pm

If you haven't got a Workshop Manual - download it free - just search for 'Morris Minor Workshop Manual'....it's there and free.
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Re: Cylinder Head torquing

Postby Offshore » Tue Nov 24, 2015 2:14 pm

Hi Bmcecosse - got the workshop manual which I was given a week or two after my birthday when I bought the car. Trouble is can't find it! Not looked too hard and last had it in UK over summer so could be in the garage somewhere I suppose instead of the bookcase where it's meant to be.

Might just download a copy though. Thanks for the tip.


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