Joined: Aug 2017 Posts: 158 Threads: 51
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Hello all, I've been doing some unscheduled rewiring on my Box Saloon and I'm having a bit of a battle with the ignition light. The original one was operational but the connectors disintegrated on removal, and I've just managed to damage the the very exposed windings on the new replacement, so I'm assuming it won't be operational now and I'm not sure how feasible repair of either will be.
Before I shell out for yet another one, am I right in thinking that the ignition light isn't actually needed to run the car and is actually a bit of a 'luxury'? I'd quite like to get the car back together and useable for now.
Many thanks!
Joined: Aug 2017 Posts: 923 Threads: 6
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Location: Scottish Borders
19-10-2021, 04:17 PM
(This post was last modified: 19-10-2021, 04:18 PM by AustinWood.)
The ignition light isn't needed to run the car. In fact the dynamo needn't be working at all. The battery will hold enough charge for at least 100 miles.
Our dynamo hasn't worked for a few weeks and the car is in everyday use. Must fit those new brushes!
Forgot to add that the fine wire winding can be replaced with an off-the-shelf resistor. I've forgotten the resistance needed though.
Jim
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Thanks for the reply - I suppose the next question is whether the charging circuit will remain operational without it?
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Location: Scottish Borders
Easy to find out. Start the engine & watch the ammeter.
Jim
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The resistor is 27ohms ,use a 0.6watt. Remove the old wire wound one first. The bulb is 2.5volt 0.25amp.This will save you the expense of a new unit.I did this conversion 50years age,still working.
Joined: Aug 2017 Posts: 1,257 Threads: 219
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Location: North Herts
A key is more secure for what exactly? A Seven can be hot wired in about 10 seconds or less...
Joined: Aug 2017 Posts: 923 Threads: 6
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Location: Scottish Borders
Who said anything about a key?
Jim
Joined: Mar 2019 Posts: 37 Threads: 8
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Location: QLD Australia
Car type: Austin 7 1936 tourer
Following my dynamo problems and finally discovering that the cause of it all was a short across the terminals of the ignition warning light because of a badly fitted insulating washer (my fault) I fixed the washer and the dynamo immediately began charging. I have a new bulb for the warning light but have not installed it yet. So the dynamo does not need the small current across the warning light to charge.
