09-10-2015, 08:33 AM
The 8AM is the start of the engine number, and the M-A2S4 is the chassis number.
Your current engine is an 1100 so it won't start with an 8, but with a 10 (if it's a British 1100 - I don't know if a South African 1100 will also start with a 10, but maybe Ryno's book mentions that). The 25000 relates to the engines, and the same engine was fitted to a few different cars, so that the engine numbers would have got over 25000 before the chassis numbers did, but either way your chassis number is well after the 25000 point - by 1962 they had sold 500 000 Minis already, so only the very early engine numbers were 8A for Austin and 8MB for Morris, the majority of 850 engines used in Minis had the same numbers whether they were fitted to an Austin or a Morris.
The engine number isn't usually shown on the chassis tags, it's on it's own tag on the top of the engine block, just behind the alternator mounting point.
Your current engine is an 1100 so it won't start with an 8, but with a 10 (if it's a British 1100 - I don't know if a South African 1100 will also start with a 10, but maybe Ryno's book mentions that). The 25000 relates to the engines, and the same engine was fitted to a few different cars, so that the engine numbers would have got over 25000 before the chassis numbers did, but either way your chassis number is well after the 25000 point - by 1962 they had sold 500 000 Minis already, so only the very early engine numbers were 8A for Austin and 8MB for Morris, the majority of 850 engines used in Minis had the same numbers whether they were fitted to an Austin or a Morris.
The engine number isn't usually shown on the chassis tags, it's on it's own tag on the top of the engine block, just behind the alternator mounting point.
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