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MG ZR ZS ZT Technical - Distributor Question

March 18, 2007


Hello to all MG people,
I own a 1980 MG/MGB LE. The problem is I don't know exactly what distibutor is in my car. The numbers that Haynes gives out for this year do not match what is on the engine. THIS IS WHAT IS ON THE CAR AND ENGINE NOW
1980 MGB LE
BUILT: 6/79 #GVVDJ2AG503671
ENGINE: 1800 - #18V883AEL 041112
DISTRIBUTOR: #41814A 45DM4 >>---> 3681
LUCAS - ENGLAND PATENTED
AMPLIFIER MODULE: Located on RIGHT SIDE WING
VALANCE
_______________________________________________________

The motor is RED and seems to be the ORIGINAL paint. It is faded to almost a very light ORANGE shade. The engine as far as I know should be BLACK. Where some of the paint is worn off is BARE METAL, that is, no sign of Black color. HAYNES REPAIR MANUAL is showing the Engine as # 18V883(CC)with ELECTRONIC DIST.- 45DE4 #41693 that is to be in the car. So you see I now am puzzled as to what settings to adjust valves, timing,air gap and so on. I could really use someones help on this matter. It may not even be that big of a deal, but I'm fairly new to the MGB and it's workings. Your help and insight would be very much appreciated.
Thankyou for your time,
BARRY CRUM - Pennsylvania
rbcrum@atlanticbb.net
B.R. Crum

Barry, this isn't really the right section for an MGB question. However, I also own an MGB as well as a ZS180, so I can answer your question.

The 45DE4 distributor was the original type of electronic ignition distributor fitted to the B. This type, known as the Opus (also nicknamed Opeless), was prone to problems and many were replaced under warranty with the 45DM4 distributor.

HTH

Ralph
Ralph Gadsby

This thread was discussed between 18/03/2007 and 19/03/2007

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