Re:
Posted by HH56 On 2022/7/15 12:54:30
Very likely the ign switch. The heavy start current for the senior starter is provided by a fairly small contact in the ign switch that can arc, pit and burn away to almost nothing.
Some of the classic symptoms of a failing switch are when turning on there is a need to wiggle the key to make a connection or sometimes if the starter contact tries to weld or has excessive roughness due to pitting the starter wants to keep running because the spring cannot release the contact plate from the contact.
Here are photo of the ign switch. First shows the small starter contact that is roughly 1/4 the size of the others and how damage usually appears. Another shows how the switch makes all the connections.
Attach file:
terminals.jpg (67.53 KB)
acc.jpg (149.21 KB)
Some of the classic symptoms of a failing switch are when turning on there is a need to wiggle the key to make a connection or sometimes if the starter contact tries to weld or has excessive roughness due to pitting the starter wants to keep running because the spring cannot release the contact plate from the contact.
Here are photo of the ign switch. First shows the small starter contact that is roughly 1/4 the size of the others and how damage usually appears. Another shows how the switch makes all the connections.
Attach file:
terminals.jpg (67.53 KB)
acc.jpg (149.21 KB)
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