MG MGB and MGB GT Tech Talk
I'm going through the wiring diagrams from Auto-Wire. They're great, but I'm not sure which one is for my 1973 MGB RDS. Any ideas?
- DIAGRAM 14 - 72/73 MGB FROM BENTLEY 3NB064
- DIAGRAM 15 - 72/73 MGB FROM BENTLEY 2NB034
- DIAGRAM 16 - 73/74 MGB FROM BENTLEY 3NB056
- DIAGRAM 17 - 73/74 MGB FROM BENTLEY 3NB067
There are two pages of diagrams per car. Look closely and you will see that each covers different circuits.
Look to see the build date of your car (on the door sill). Late 72 build date is a 73 model, not a 73/74 model, etc.
Here's what I get on the differences between the diagrams:
14- no seatbelt warning circuit, no hazard light circuit
15- seatbelt warning circuit, hazard circuit
16- hazard circuit, no side marker lights
17- more advanced seatbelt warning circuit (module), marker lights, hazard lights
Russ, if you have hazard lights, that eliminates #14. Any kind of seatbelt warning circuit, not #16. I recall my '74 having the advanced seatbelt module but can't remember where it is on the car. If I had to guess, I'd go with #15 for your car.
Scroll through to find your model.
http://www.thebriton.com/mgbwiremaster.pdf
mgbwiremaster.pdf (application/pdf Object)