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Author Topic: Augusta head nut torque  (Read 216 times)
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brian
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Posts: 220


« on: 02 June, 2020, 05:33:46 PM »

Fitting head back on engine - thought I knew torque setting but either never did know for sure or I cannot find a record. Any ideas?
I have an old letter from Arthur Keeling who reckoned (but did not know for sure as he was a Lambda man) up to 40ft-lbs and then tighten when hot to 50 but probably up to  70 was fine!
Another problem is my torque wrench is in g/km or some such non-Imperial measure!
Brian
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Brian Hands


1922 Hands Tourer
1934 Augusta standard saloon
1938 Aprilia S1 saloon
1953 Aurelia B10
1965 Flavia Sport
peteracs
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« Reply #1 on: 02 June, 2020, 05:58:41 PM »

Hi

Conversion from ft lbs to Nm if that helps...

https://www.metric-conversions.org/energy-and-power/newton-meters-to-foot-pounds.htm

Peter
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Beta Spyder S2 pre F/L 1600
Saab 9-3 1.9Tid Cabrio
lancialulu
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« Reply #2 on: 02 June, 2020, 07:29:15 PM »

Fitting head back on engine - thought I knew torque setting but either never did know for sure or I cannot find a record. Any ideas?
I have an old letter from Arthur Keeling who reckoned (but did not know for sure as he was a Lambda man) up to 40ft-lbs and then tighten when hot to 50 but probably up to  70 was fine!
Another problem is my torque wrench is in g/km or some such non-Imperial measure!
Brian
maybe its a pre war thing but I have never heard of torquing a head when it is hot???
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Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
DavidLaver
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« Reply #3 on: 02 June, 2020, 08:27:38 PM »


Measure elongation Smiley

The other - more realistic - thought is to look up what that size stud would "normally" be torqued to.
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David Laver, Lewisham.
Kari
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Posts: 71


« Reply #4 on: 03 June, 2020, 07:55:25 AM »

The problem is not the strenght of the studs, but their attachments in the cylinder block.

I tighten in several steps from the inside outwards and cross-wise starting at 40Nm (30ft-lb) and then up to 85Nm (63ft-lb). After warming the engine, (not hot) a recheck ot two.

Regards  Karl
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brian
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Posts: 220


« Reply #5 on: 03 June, 2020, 08:15:32 AM »

Many thanks. It looks as if Arthur was about right!
Brian
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Brian Hands


1922 Hands Tourer
1934 Augusta standard saloon
1938 Aprilia S1 saloon
1953 Aurelia B10
1965 Flavia Sport
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