Don't you mean BTDC rather than ATDC? And you say the timing retards
under acceleration with the vacuum advance hooked up? Are you sure you
know which way your engine is turning over? Are you sure it isn't turning
over "backwards" (it could be done, I suppose, though I don't know how)?
I don't know about a 45D, but a 25D has an arrow indicating the direction
of rotation.
...or maybe 79s are more different than I thought...
Nferre@aol.com had this to say:
>Hi Gang!!
>
>I have a wierd timing problem with my 79 MGB. I just installed a Lucas 45D
>distributor with an Ignitor ignition.
>
>I initially set the timing to 15 degrees ATDC with the vacuum advance
>plugged. Then I reattached the vacuum advance. She was sluggish, pinged
>and
>ran rather warm. When I got back home, I checked the timing and it was off
>the scale. Way too advanced.
>
>I tried a few other settings, and am currently now at 15 degrees ATDC with
>the vacuum advance hooked up. She won't run without it hooked up. Also,
>when the vacuum advance is attached....the timing retards under acceleration.
>
>I've not gotten a chance to drive it, as the battery went flat through all
>of
>the starting, shutting down etc. It's on the charger now.
>
>Any ideas????
>
>Nels Ferre
>79 MGB
>
--
Max Heim
'66 MGB GHN3L76149
Runs great,
looks particularly bad since some SUV clown backed into it.
If you're near Mountain View, CA,
it's the red one with the silver bootlid.
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