[TR] TR3 distributor

[Geo Hahn]

Andrew -

I believe the 40698A was used on most TR3As and TR4s, the 40795A on TR4As.

Both the curves and vacuum advance are different -- but I am not sure how
critical those differences are.  As I recall the 40795A has a lower total
advance.

Lots of details here:

http://mgaguru.com/mgtech/ignition/pdf/lucas_distributor_specs.pdf

That said, my late-TR4 came to me with a 40795A on it - possibly original -
and I have never changed it.

Geo

On Wed, Aug 12, 2015 at 6:54 AM, Andrew Uprichard <auprichard at uprichard.net>
wrote:

> List:  what is a “correct” distributor for a TR3A: I have a couple here:
> one marked DM2, 40698A, and  the other 25D, 40795A.  Does it really matter?
>
> Andrew UPrichard
>
>
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