Series MM Distributor

for those with Series MM sidevalve cars produced between September 1948 and February 1953

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karlcouchMM1952
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Series MM Distributor

Postby karlcouchMM1952 » Thu Dec 28, 2017 7:12 pm

Please can you help me. Is this the correct distributor for my car 1952? I've added some photos. I would like to buy a replacement as there is a significant amount of wear in the shaft which is making it really difficult to set the points etc. If anyone could sell me one or point me in the right direction it would be most greatful. Thanks, Karl.
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RobThomas
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Re: Series MM Distributor

Postby RobThomas » Thu Dec 28, 2017 8:55 pm

Yes, that is the best MM distributor. 40056, 40251 and 40333 were used, in that order.

Yours can be rebushed, should you wish, or you can get the same 'curve' built into a modern 25D4 body. The original was designed for poor petrol so is no longer ideal. The baseplate gives 16 degrees (32 at the crankshaft) of mechanical advance, the same as the Mini Cooper S 40819 but with a slightly less rapid curve.

The simple answer is that any used one will work if it has the numbers in the first line. I have some if you get stuck.
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karlcouchMM1952
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Re: Series MM Distributor

Postby karlcouchMM1952 » Fri Dec 29, 2017 6:41 pm

Hi Rob, thanks for the advice. I was a little confused as the books say it should be DKY or so I thought. So the model I have is a D2AH4, type A176, service number 40333? One book I have says this type was fitted to later MM's but doesn't show a diagram. Do you have any spare that I can buy. If not do you have a contact for someone who could give me a quote on referbishing the one I have? Many thanks, karl.

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RobThomas
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Re: Series MM Distributor

Postby RobThomas » Fri Dec 29, 2017 7:51 pm

http://www.distributordoctor.com/distributors.html

This guy should be able to supply something suitable utilising a better model of dissy than the original.
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karlcouchMM1952
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Re: Series MM Distributor

Postby karlcouchMM1952 » Sat Dec 30, 2017 1:16 am

Thanks, I'll ask for a quote. I'm on a budget after Christmas though so may have to consider a second hand replacement if this option proves too expensive. Cheers, Karl.

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sparesman
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Re: Series MM Distributor

Postby sparesman » Sat Dec 30, 2017 10:40 pm

Karl
We have some MM distributors in the club stocks including a new 40251
Bryan Gostling
1952 MM 2dr saloon in Thames Blue UNO212
1953 S11 Traveller in Birch Grey - oldest survivor ? Export model now reg PPO924
1953 S11 Traveller in Black - 3rd oldest PPX344

karlcouchMM1952
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Re: Series MM Distributor

Postby karlcouchMM1952 » Wed Jan 03, 2018 9:04 pm

Hi Bryan, great! Are the others also new or used? Please can you confirm condition if used as I need a good one. How much including postage please. Do you also have a 40333? Many Thanks.

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