[Healeys] 100-M parts

Curtis Arndt cnaarndt at gmail.com
Sat Dec 23 10:57:16 MST 2023


Ray,

The 40320 A/B distributor is for an early standard BN1/2 with the lever
advance.

The 40520A is the BN2 "M" distributor for a later car with the spring
advance.

Cheers,

Curt

On Sat, Dec 23, 2023 at 9:11 AM Jake V <britishauto at gmail.com> wrote:

> The 40520 is the M.
>
> Here's some info on ID'ing M cams beyond measuring the lobes.
>
> Jake
>
> On Sat, Dec 23, 2023, 12:30 AM Ray Juncal via Healeys <
> healeys at autox.team.net> wrote:
>
>> Which distributor number is the "M"? also is there a number or other way
>> to ID a 100-M camshaft? I should know this stuff but memory fades.
>> Thanks
>> Ray
>>
>>
>> [image: Inline image]
>>
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