Unless you are absolutely sure the distributor has never been tampered
with, rebuild or modified, you cannot go by the numbers. All 25D
distributors bodies were the same with variations in advance springs,
weights, advance /retard vacuum system, 4 or 6 cilinder top shaft plus
some variations in the drive system, off-set dog, gear etc.
When rebuilding distributors one takes an empty undamaged body, with any
numbers stamped on it, and build it up according the needs for the
specific vehicle with the specified parts. Some re-builders may mark the
body as modified/rebuilt for a specific application, but most probably
will not. In the past I have rebuild many distributor this way and I
must admit I never marked the bodies to be identified in the far future.
Kees Oudesluijs
NL
Op 9-11-2012 9:30, lists schreef:
> Bob,
>
> usually you can find other numbers stamped on the housing, which can give a
> hint which car the dizzy belongs to.
> There should be a 4 (or sometimes 3) digit number, which shows like 10 62 or
> 6 59. This is the production date of the dizzy, with the first 2 (or
> sometimes 1) digit(s) being the week of the year and the 2 last digits being
> the year.
> If your 40882F shows something like 3 68 (being the 3rd week of 1968), this
> dizzy cannot be for an Austin Healey for obvious reasons.
>
> Eric
> Brits 'n' Pieces
> distributor for distributors (123ignition) ;-)
>
>
>
>
> I have a 25D part# 40882F ... anyone know what it's for? BJ8?
>
> TIA,
> Bob
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