Sunbeam Talbot 90 starter motor issues
Discussion
I’ve purchased my first restoration project, it’s a Sunbeam Talbot 90 1952. It’s in good condition for the year but I’m having trouble with the starter motor. It’s a Lucas M418G 25521D. I’ve removed it and stripped it down as it was turning slow. Can’t see anything wrong and brushes look ok. I’ve rebuilt it now but I’ve got a short across the power terminal and body. I stripped it again and removed the body and still got short. Can anybody enlighten me? I don’t understand why the power terminal is connected to the magnet which is screwed into the body?
Also anybody know where is the best place for buying replacements etc for this car?
Is there a equivalent type starter motor or a modern one to use instead. Thanks
Also anybody know where is the best place for buying replacements etc for this car?
Is there a equivalent type starter motor or a modern one to use instead. Thanks
Cross reference chart
http://www.classicvehicledata.com/wp-content/uploa...
Or rebuild the starter again.
http://mgaguru.com/mgtech/books/wsm/wsm_n_electric...
If you look at N7 and the terminal part G, it looks like there may be an insulator that goes over the terminal stud. Did you leave that out by any chance?
http://www.classicvehicledata.com/wp-content/uploa...
Or rebuild the starter again.
http://mgaguru.com/mgtech/books/wsm/wsm_n_electric...
If you look at N7 and the terminal part G, it looks like there may be an insulator that goes over the terminal stud. Did you leave that out by any chance?
Allan L said:
This may seem silly but how did you find (or measure) the short?
If you used a multi-meter the normal internal resistance measured would be quite low. I can'r remember how low, but low enough to permit 12v to use several hundred amps.
Good point. Ohm's Law applies. V=IR where V is voltage, I is current and R is resistance. Say V=12v, I=200a, then the resistance will be 0.06 ohm which will be hard to measure as it is so small.If you used a multi-meter the normal internal resistance measured would be quite low. I can'r remember how low, but low enough to permit 12v to use several hundred amps.
Gassing Station | Classic Cars and Yesterday's Heroes | Top of Page | What's New | My Stuff