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September 29th, 2008

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Q & A: Timing

Friday March 29th, 2002
Q & A, MGA, MGB, MGC, MG T-Type, Midget
John,
I hope this finds you and yours in good health.
I have a quick question that I hope you can shed some light on. I just
rebuilt the engine on the 79 MGB. A few things were changed. It
presently
has HIF carbs and a non-electronic 45D distributor (new). There is no air
pump or cat converter. My question is what would be the best ignition
timing
setting? Would I go with the timing and procedure to match the engine or
the
carbs? The Haynes manual has a variety of different settings and
procedures
(i.e. set the timing @ 1500 RPM).

Any help would be greatly appreciated.

Thanks,
Bill Waterstraat


P.S. In December I sold you a 73 MGB/GT that was trashed. I recently saw
what seemed like an identical car on a trailer going the other way on the
expressway in Chicago. I'm just curious if you resold it or not. Not
important!

BILL!

You have a late model distributor -- a 45 D with points -- probably
a 41427 which is sold as the Euro-spec MGB distributor. This unit uses a
gap of 0.015", a dwell of 51 degrees, and a timing of 20 ... read more