{"id":52,"date":"2017-06-17T10:27:51","date_gmt":"2017-06-17T10:27:51","guid":{"rendered":"http:\/\/lotus-seven.dk\/?p=52"},"modified":"2020-12-29T07:54:41","modified_gmt":"2020-12-29T07:54:41","slug":"standard-10-axle","status":"publish","type":"post","link":"http:\/\/lotus-seven.dk\/?p=52","title":{"rendered":"Standard 10 axle"},"content":{"rendered":"

The Standard 10 rear axle of the Lotus 7 Series 2 is probably the most controversial component of the car. Colin Chapman\u2019s concept of a lightweight, live axle with a simple A-frame to provide longitudinal and lateral guidance gives a performance that is close to an independent suspension. The concept is brilliant, but its implementation is doubtful. Had the axle been suspended the way it was designed for, no doubt it would be capable of handling the most powerful Series 2 Sevens. However, Colin Chapman\u2019s concept supports the axle in a manner it was never designed for, leading to frequent failures, even on the not so powerful cars. One problem is that the suspension introduces large torsional loads on the axle casing leading to cracks and oil spillage, and subsequently seizure of the differential. The addition of the Thesaurus plate helped that problem to some extent.<\/p>\n

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To make things worse, the concept introduced large local loads where the A-frame is attached to the lower part of the differential casing. This led to a crack in SB2237\u2019s casing as far back as in 1968, according to a previous owner. The crack was braze welded and doesn\u2019t seem to cause any problems.<\/p>\n

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We treasure our Standard 10 rear axle which\u00a0has caused no trouble\u00a0since we bought the car.\u00a0We inherited\u00a0a minor problem caused by\u00a0bad shimming\u00a0\u00a0of the half-axle making it difficult to fixate the left rear hub. This problem\u00a0was\u00a0solved by our Lotus mechanic.<\/p>\n

With our engine and tire selection we do think that our Standard 10 rear axle will survive.<\/p>\n","protected":false},"excerpt":{"rendered":"

The Standard 10 rear axle of the Lotus 7 Series 2 is probably the most controversial component of the car. Colin Chapman\u2019s concept of a lightweight, live axle with a simple A-frame to provide longitudinal and lateral guidance gives a performance that is close to an independent suspension. The concept is brilliant, but its implementation … <\/p>\n

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