1071 crank?

22 comments

  1. Ive purchased a crank but am having problems identifying it. Its got 2' mains and the journals are 1.625', and is EN40B, but i cant find an AEG number anywhere.

    The only stamp visible is a 707 number. To be more precise, it is 707/641/?. I am seriosuly hoping i havent bought a duff crank!:?

  2. imported post

    It must be a Mk I/IIS crank if it really is of EN40B and for Mini. You could measure the distance between the centre of the mains and centre of the big ends. If you multiply that by a factor 2 you get the stroke, which will help you identifying which type of S crank it is. If that is about 61.9mm, then it's a 970S. If the stroke is about 68.3mm, then you have the 1071S. Otherwise, if the measurement gives about 81.3mm (for 1275S), then there are still two options. The early AEG316 is not cross-drilled, while the later spec AEG480 is.

  4. imported post

    Ok, lovely. :):)

    There is also a line of green paint on one of the throws – if i could work out how to post pics ill put one up. Does this have any signifigance?

  6. imported post

    [b]Safety_Fast wrote: [/b] “Ok, lovely. :):)

    There is also a line of green paint on one of the throws – if i could work out how to post pics ill put one up. Does this have any signifigance?” Sounds typical BMC 'splash it on all over'. 😀

  7. imported post

    Hi

    Try to look at this. He writes about your crank

    [url]http://www.minicooperrestorations.co.uk/New%20work/Engine.htm[/url]

    Best Regards Kristian

  9. imported post

    [b]Safety_Fast wrote: [/b] ”

    Thats Rob Gurney Simths car right – does anyone have a contact number for him?:):):):)”
    There's an email contact link on the home page of the site 🙂

  10. imported post

    Emailed but have had no response.

    Could someone PM me his number? The frustrating thing is i spoke to him only a couple of months ago on another matter, but cant find his no in my book!

    Heres hoping…..;)

  12. imported post

    I have bought three 1071 cranks till I found one that wasn't cracked of those three I found the casting numbers ground off in aid of balancing good luck I spent way to much…But found a good one 10/10 ground. Morris cooper s 1071 needs help.

  16. imported post

    Sorry to ask another crank question, but I have bought a crank with the following references :-

    AEG 330

    707 641 A

    I am hoping it is a 970s crank, am I right?

    Thanks

    Mark

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