Classic cars forum & vehicle restoration.
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Mark_S
Joined: 27 Jun 2013 Posts: 32 Location: Germany, Geltendorf
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Posted: Sat Jul 22, 2017 8:46 am Post subject: Morris Eight cylinder head bolt torque |
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Dear forum members,
my 1938 Morris Eight is leaking some water between cylinder and cylinder head.
I was checking my handbooks and docs, but could not find an indication concerning bolt torque.
Can anyone recommend a value before I start disassembling everything?
Best regards
Mark |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4100 Location: South Cheshire
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Mark_S
Joined: 27 Jun 2013 Posts: 32 Location: Germany, Geltendorf
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Posted: Sat Jul 22, 2017 1:31 pm Post subject: |
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Got a very old OES kit I guess still with forbidden materials. and a newer one. Let's see. Thanks a lot for the fast reply.
Best regards
Mark |
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bjacko
Joined: 28 Oct 2013 Posts: 351 Location: Melbourne Australia
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Posted: Sun Jul 23, 2017 7:05 am Post subject: Morris 8 Cylinder Head Nuts torque |
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The figure quoted is for studs etc in good condition, if your studs are rusty and maybe "thinned" a lower torque would be better or you may well snap a stud. How many times have you heard someone who has snapped a stud say "but I was using the correct torque"? |
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Mark_S
Joined: 27 Jun 2013 Posts: 32 Location: Germany, Geltendorf
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Posted: Sun Jul 23, 2017 6:58 pm Post subject: Re: Morris 8 Cylinder Head Nuts torque |
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bjacko wrote: | The figure quoted is for studs etc in good condition, if your studs are rusty and maybe "thinned" a lower torque would be better or you may well snap a stud. How many times have you heard someone who has snapped a stud say "but I was using the correct torque"? |
The previous owner seems to have used threaded studs cut to length. When I made the first 90° turn after touching ground the first one broke.
I ordered already complete new set. Sometimes it is frightening when you see what people put together.
Mark |
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bjacko
Joined: 28 Oct 2013 Posts: 351 Location: Melbourne Australia
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Posted: Mon Jul 24, 2017 5:43 am Post subject: Morris 8 cylinder head torque |
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sounds like they used general purpose threaded bar of dubious quality. With the correct studs and new nuts it should be fine. Remember the torque figure is "dry" torque i.e. no lubrication on the threads. |
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Mark_S
Joined: 27 Jun 2013 Posts: 32 Location: Germany, Geltendorf
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Posted: Sat Aug 19, 2017 8:36 am Post subject: |
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Done and tight. Got the cylinder head milled flat before.
Might have to run it now with V-Power or other 100+ Octane fuel.
Thanks again for your comments and recommendations.
Mark |
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