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+--- Thread: Head Stud Thread (/showthread.php?tid=8686)
RE: Head Stud Thread - Tony Griffiths - 26-06-2023
I find that even "adjustable" split dies made in China are hopeless. One set (fortunately free with a load of other junk) cut far too deeply even when opened right up. Try to find some proper UK or European-made ones in high-speed steel by the likes of Dormer, Goliath, Hall, Osborne, SKF, Presto, etc. They often appear on eBay as complete or incomplete sets.
RE: Head Stud Thread - Parazine - 26-06-2023
(26-06-2023, 10:40 AM)andrew34ruby Wrote: I've never understood the purpose of a die nut. If a die needs to be adjustable (and they all are) then how can a die nut ever be right?They're actually quite useful, where a thread needs to be cleaned up as opposed to cut from the start on a piece of rod. They can also be driven with a socket rather than a die holder, which improves accessibility.
Like Tony, I try to find reliable old brand die nuts, the Chinese type are too unreliable.
RE: Head Stud Thread - Tony Press - 26-06-2023
Somewhere in the shed I have grandfathers old die plate from around 1900 with a number of die holes. He ran a cycle and motor shop in Chard.
RE: Head Stud Thread - Graham Barker - 27-06-2023
Hi Bob, thanks for your comment that the studs may have been made to none standard dimensions by an earlier fettler. That is not the the case. I tried 5/16 BSF nuts from other parts of the car. They also were very loose on the threads cut with the die nut and fitted nicely on the threads that had not been touched by the die nut.
RE: Head Stud Thread - Frank Stoll - 28-06-2023
Hello,
from my metric perspecticve the whole topic is even more mysterious. Could anyone provide the link to the list of the Cornwall Austin Seven Club mentioned at the beginning of the topic?
Thanks
Frank
RE: Head Stud Thread - Howard Wright - 28-06-2023
(28-06-2023, 08:12 AM)Frank Stoll Wrote: Hello,
from my metric perspecticve the whole topic is even more mysterious. Could anyone provide the link to the list of the Cornwall Austin Seven Club mentioned at the beginning of the topic?
Thanks
Frank
Hi Frank
https://www.austin7.org/Data%20Pages/Tech%20Data/
Cheers
Howard
RE: Head Stud Thread - colina - 29-06-2023
Graham - can you point me to where on the Cornwall A7 site you found the thread info please? I've had a look but couldn't find it.
Thanks
Colin
RE: Head Stud Thread - John Cornforth - 29-06-2023
Hi
I am disappointed that on the above referenced page of the Cornwall Austin Seven Club, Austin's 1937 published head stud torque figure of 360 lbs-in (30 lbs-ft) is being perpetuated. This has been discussed at length in the past on this forum, and the general conclusion is that it is rather too high. Maybe a health warning should be added ?
RE: Head Stud Thread - Chris KC - 29-06-2023
(29-06-2023, 08:18 AM)John Cornforth Wrote: Hi
I am disappointed that on the above referenced page of the Cornwall Austin Seven Club, Austin's 1937 published head stud torque figure of 360 lbs-in (30 lbs-ft) is being perpetuated. This has been discussed at length in the past on this forum, and the general conclusion is that it is rather too high. Maybe a health warning should be added ?
Cor lummy, 30 lb.ft (not lb/ft) for tappets sounds a bit wild too! Not to mention 50 for C/M.
(28-06-2023, 08:12 AM)Frank Stoll Wrote: Hello,
from my metric perspecticve the whole topic is even more mysterious. Could anyone provide the link to the list of the Cornwall Austin Seven Club mentioned at the beginning of the topic?
Thanks
Frank
Frank, I'm not letting you play that "I'm German" card any more since I discovered fuss & zoll.... (for the illumination of others, the German foot and inch!)
RE: Head Stud Thread - Graham Barker - 29-06-2023
(29-06-2023, 07:20 AM)colina Wrote: Graham - can you point me to where on the Cornwall A7 site you found the thread info please? I've had a look but couldn't find it.
Thanks
Colin
Colin, your query has been answered by Howard giving the link in his post above. The table of threads is on the last page of that link.
Regards
Graham
(29-06-2023, 08:18 AM)John Cornforth Wrote: Hi
I am disappointed that on the above referenced page of the Cornwall Austin Seven Club, Austin's 1937 published head stud torque figure of 360 lbs-in (30 lbs-ft) is being perpetuated. This has been discussed at length in the past on this forum, and the general conclusion is that it is rather too high. Maybe a health warning should be added ?