Search found 483 matches

by Vic Butler
Sat Jun 06, 2020 8:49 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Evening Charles. Dave had said that his MG has always had the problem in his ownership so I wonder if a previous owner has replaced the starter and either it's wired incorrectly or doesn't have a cold start connector. The only way would be to examine the starter motor solenoid connections, not an ea...
by Vic Butler
Sat Jun 06, 2020 7:30 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Evening Charles. I agree about the book glossing over the factory fitted ballast resistor ignition. He goes into detail about converting to a ballast resistor ignition but no mention is made of the standard system. It's aroused my curiosity now so I'll try and find out how the standard system works ...
by Vic Butler
Sat Jun 06, 2020 4:59 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Dave, the ignition relay is switched off when the starter is operated thus cutting off the ballast resistor circuit. When the engine has started and the key released the starter relay is switched off and the ignition relay back on. The 12v supply direct from starter motor to coil must be cut off at ...
by Vic Butler
Sat Jun 06, 2020 10:05 am
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

It does sound like there is no direct 12v supply from the starter solenoid to the coil. Maybe the starter isn't original and has no facility for the direct feed to the coil.
by Vic Butler
Fri Jun 05, 2020 4:57 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Strangely enough Charles I've just this second read that particular passage. There must be something in the later starter solenoid that prevents feedback from the coil. So, if anyone with a rubber bumper B wants a replacement starter make sure it does have the cold start connector. I was wrong. You ...
by Vic Butler
Fri Jun 05, 2020 4:09 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Charles, the same type of starter motor, Lucas 2M100 was fitted to all GHD/N5 B's from 258001.Only the wiring diagrams for rubber bumper cars with ballast ignition show the. "cold start" terminal on the solenoid. Was a different solenoid fitted for ballast resistor ignition?
by Vic Butler
Fri Jun 05, 2020 2:52 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Thanks Charles. I am using the wiring diagram from the official BL Repair Operation Manual. There is no diode between the coil and starter motor solenoid connection. There must be something internal that stops current feedback when the engine is running. The wire with the eyelet is obviously the alt...
by Vic Butler
Fri Jun 05, 2020 1:08 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Charles, is the coil connector on the starter motor separate from the others or is it combined in a "clump?"
by Vic Butler
Thu Jun 04, 2020 5:26 pm
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

No, it wouldn't Charles. The starter relay becomes inactive when the key is released and the run relay is activated, thus cutting off all power to the solenoid. It's the set up used with the original starter motor. With the rubber boot covering the wiring on my BGT, I can't see how the wires are con...
by Vic Butler
Thu Jun 04, 2020 10:54 am
Forum: MGB Technical
Topic: Starter Motors for MGB's with Ballast Resistor Ignition.
Replies: 32
Views: 229

Re: Starter Motors for MGB's with Ballast Resistor Ignition.

Morning Mike. I can't see why that wouldn't work, it's still a 12v supply which would be turned off when the engine is running. However, an easier solution would be to piggy back the terminal on the solenoid that takes the power supply. I suspect that's where the connector supplied if asked for woul...