MGB & GT Forum

ignition and electrical

Topic List Forum List Newer Older Start New Topic

ignition and electrical #1
jimmalin james malinosky newark valley, NY, USA Sign in to contact 1980 MG MGB	Topic Creator (OP) Oct 30, 2014 09:42 AM Joined 9 years ago 35 Posts

i finaly got voltage to the ignition switch but turning the key nothing works. I checked this morning and heard a clicking sound. the 4 way hazard lights on the dash were blinking and all 4 lights were blinking. however had to turn battery off to stop it. I did clean a couple of rusty contacts near drivers fender. suggestions other than wiring diagrams?

Was this post helpful or interesting?

Yes No Thank

Sponsored Links. Become a

Supporting Member to hide this ad & support a small business

Re: ignition and electrical #2
rocannon rocannon L Comanche County, OK, USA Sign in to contact 1967 MG MGB GT "GT From Hell"	Oct 30, 2014 09:53 AM Top Contributor Joined 14 years ago 12,664 Posts

James,
Start at the front of the car and work your way to the rear - clean every connector (bullet, spade, bulb sockets, etc) and every grounding point.

This will eliminate those items as problem points, and get you more familiar with the wiring. And some problems might magically disappear.

Pogo is right.
—————————————————————-
The power of reasons is an illusion. The belief will not change when the reasons are defeated. The causality is reversed. People believe the reasons because they believe in the conclusion.

Was this post helpful or interesting?

Yes No Thank

Re: ignition and electrical #3
lil.red.roadster Bernie Anderson Marshfield, Gloucestershire, UK Sign in to contact 1970 MG MGB MkII "The Beasty"	Oct 30, 2014 09:58 AM Joined 11 years ago 1,294 Posts

Sounds like you have a bad/extra earth somewhere.

Hazards are fed with brown. this is then fed from the hazard flasher (Light Green/Brown) to the Hazard switch.

When switched on the supply is fed to both sides via Green/White - right and green/Red - left

As that works except you can't turn them off means the hazard switch is you first port of call. They are not the best bit of kit in the world and apparently (I don't have one smiling smiley

) working it rapidly can resolve some issues.

"suggestions other than wiring diagrams" and whats wrong with them

Bernie

"discere mutari est"

Wiring Diagrams: http://www.advanceautowire.com/mgb.pdf
Paul Hunts very useful site: http://www.mgb-stuff.org.uk
Manual for download: http://www.geomatique-liege.be/MGJP/DocumentsPDF/MGB_Workshop_Manual.pdf
UK MoT guide: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/518634/mot-inspection-manual-for-class-3-4-5-and-7-vehicles.pdf
Some basic guides: http://www.howacarworks.com/

1970 Roadster (First Reg July 10 1970). Std exhaust (Bell SS) AFAIK rest is bog standard

80_hazards.JPG 18.3 KB

Was this post helpful or interesting?

Yes No Thank

To reply or ask your own question:

or

Registration is FREE and takes less than a minute

Forums

Having trouble posting or changing forum settings?
Read the Forum Help (FAQ) or contact the webmaster

MGB & GT Forum

ignition and electrical

To reply or ask your own question:Members Sign InorCreate an AccountRegistration is FREE and takes less than a minute

To reply or ask your own question:

or

Registration is FREE and takes less than a minute