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Old 12 Mar 2014, 18:55 (Ref:3377908)   #1
Andy Bradshaw
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Andy Bradshaw should be qualifying in the top 10 on the grid
lotus eleven with a BN 1 LSD

I am restoring the 1955 lotus eleven S1 which was shipped out to sebring it has a lotus MK9 diff case with a austin nose piece but it has a LSD diff which works via springs and plates has any one any information on this type of unit the car was crashed during practice but i have original pictures of the car showing it was fitted when the car was new.
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Old 13 Mar 2014, 08:50 (Ref:3378112)   #2
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Originally Posted by Andy Bradshaw View Post
it has a LSD diff which works via springs and plates has any one any information on this type of unit
Has it got a series of flat and cone plates or something different ?
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Old 13 Mar 2014, 14:02 (Ref:3378213)   #3
Andy Bradshaw
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IT has a housing inside with 4 coil springs and pushes on flat discs
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Old 13 Mar 2014, 14:26 (Ref:3378218)   #4
Andy Bradshaw
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I have taken it apart and the two housings are spring loaded (4 springs)and push on the planet gears locking them. I cannot load pics as the forum does not allow me.
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Old 13 Mar 2014, 15:13 (Ref:3378233)   #5
Andy Bradshaw
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On further investigation the planet gears are pined to cones which are pushed outward on the diff husing.
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Old 14 Mar 2014, 16:08 (Ref:3378631)   #6
Stewart E Smith
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Like an old torque style diff? the car isn't a 55', must be a 56, 7,8. Interesting potential. Do you have a chassis plate?
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Old 14 Mar 2014, 19:35 (Ref:3378698)   #7
Andy Bradshaw
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Andy Bradshaw should be qualifying in the top 10 on the grid
Yes the car is 1956 and yes i do have the chassis number as i have a list of the early chassis numbers from peter brand who was lotus employee and a bit of a historian for the company. he sent me it in the late 80's i have had the car in bits all this time it has taken all these years and the internet to prove the car ran at sebring in 1956
and was owned by briggs cunningham. i still would like to find out the manufacturer of the LSD though. It may be an early auburn unit the company is in indiana.
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Old 15 Mar 2014, 04:58 (Ref:3378831)   #8
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For photos you need to upload to Photobucket or similar then link the image
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