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Thunderbird Twin - Technical Talk Technical talk for the big Thunderbird twin

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post #11 of 14 (permalink) Old 04-06-2019, 02:33 AM Thread Starter
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FIXED!!

Well it was an electrical fault (sort of). Someone had put a load of grease on the electrical connector to the instrument panel (see photos). I cleaned it all off inside and out (like a Chimpanzee getting termites with a stick ) and then liberally sprayed with Electrical Contact Cleaner (non-greasy). Test rode, all fixed.
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Last edited by AusTone; 04-06-2019 at 02:36 AM.
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post #12 of 14 (permalink) Old 04-16-2019, 02:50 AM
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Great find and outstanding determination to run down the issue. Can't imagine coming from the factory like that. Do you suspect the recent dealer service you had done?

Last edited by slingshot60; 04-16-2019 at 02:52 AM.
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post #13 of 14 (permalink) Old 04-18-2019, 08:28 PM Thread Starter
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No mate, don't suspect the dealer service. I reckon the previous owner may have used the wrong type of grease and it had become contaminated. Also, since I cleaned the connector, I did notice the odd flicker of the red light so I replaced the wire that connects the switch to the connector under the instrument panel. Since then it has never even flickerd. I'm a qualified electronics technician so it's been done professionally. The wire must have been chafing to the chassis somewhere so suspect this was the main cause. I've been to the dealer and he agrees that this is the most likely cause.
Cheers Tony
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post #14 of 14 (permalink) Old 04-19-2019, 07:51 AM
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Sounds like you nailed it.....upon refilling the radiator last evening noticed that connector does have a smidgen of dielectric grease from the factory. I'm certainly not an electronics technician like yourself....computer tech yes, but I do stretch my neck out occasionally with the crimping tools, connectors etc.
Also sounds like you have an excellent dealer. We just lost 1 of 3 in my area. My LT is second hand bought with 2500 miles on the clock. Not knowing the history first thing I did was change oil. Found the 4 screws on that plate stripped...and suspect they couldn't figure out how to get the filter out. https://www.bmotorsports.com/shop/ad...5729&x=32&y=11

Best
BS

Last edited by slingshot60; 04-19-2019 at 08:01 AM.
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