MGB & GT Forum
What have I done?
Posted by Lancastorshire
Lancastorshire
Kyle M
St.Augustine, FL, USA
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Sep 1, 2014 12:37 PM
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1977 MGB. After switching out the old solenoid my starter winds up as soon as the battery is connected, no keys required but does not turn the engine, I took pictures to replace the wires properly. Traced them. Two brown from the alternator, one brown from the starter relay, one brown from the ignition switch, one brown from the ignition switch relay, and the main power cable from the battery all on the lower terminal, the two small connectors on the side, one white and green leads to the coil, one brown and white leads to the starter relay. What did I do?
Sep 1, 2014 12:43 PM
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dickmoritz
Dick Moritz
Philly 'burbs, PA, USA
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Sep 1, 2014 01:11 PM
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Lancastorshire
Kyle M
St.Augustine, FL, USA
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Sep 1, 2014 02:17 PM
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Sep 1, 2014 02:33 PM
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Lancastorshire
Kyle M
St.Augustine, FL, USA
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Sep 1, 2014 03:17 PM
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Well Dick and Charlie it was worth a try, when I attached all the wires to the top terminal and hooked up the battery the starter spun, no keys again, then tried just the battery feed into the lower terminal, same result. Thanks for the input.
Sep 1, 2014 03:21 PM
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Lancastorshire
Kyle M
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Sep 1, 2014 03:50 PM
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I'm a little confused Kyle. Are you saying you hooked it up like Richard's picture the first time? And you are calling the terminal with all the wires the lower terminal. I can't look at mine since it has the plastic cover, but I was thinking that Richard's are connected to the upper terminal.
See the strap coming out the starter to what I am calling the lower terminal? That is a direct power feed into the starter. So, if you connect the hot line from the batt to that, the starter will turn, but not engage the starter ring gear.
Part of the solenoid's job is to internally connect the upper terminal with the lower terminal to power the starter. What happens if you put nothing but the hot line from the batt onto the terminal that has all the wires on it in Richard's pic. If you do that and the starter spins, then the solenoid is not disconnecting.
Charley
See the strap coming out the starter to what I am calling the lower terminal? That is a direct power feed into the starter. So, if you connect the hot line from the batt to that, the starter will turn, but not engage the starter ring gear.
Part of the solenoid's job is to internally connect the upper terminal with the lower terminal to power the starter. What happens if you put nothing but the hot line from the batt onto the terminal that has all the wires on it in Richard's pic. If you do that and the starter spins, then the solenoid is not disconnecting.
Charley
Lancastorshire
Kyle M
St.Augustine, FL, USA
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dickmoritz
Dick Moritz
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Sep 1, 2014 04:48 PM
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Lancastorshire
Kyle M
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Sep 1, 2014 06:43 PM
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Sep 1, 2014 11:51 PM
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With that test, I'm thinking the same as Peter. I would give it a sharp rap with a hammer and see if it helps, but if it does help, the effect may only be temporary. You are sure that the exciter wire is not connected and is maybe hot when it should not be?
Charley
Charley
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