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Aug 24th, 2023
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Joined: Sep 2016
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Mid way through fitting new king pins and bushes I’m intrigued to have discovered some sort of sensor in the brake callipers mounting bracket on the offside suspension assembly. It’s a small threaded hall effect(?) sensor with wires going off into the engine bay loom.
Can’t find any reference to it in Wolf parts books so I’m guessing it’s either to tell the ecu if the car is moving or an electronic speedometer transmitter
Very odd
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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Joined: Jul 2007
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Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
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Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'09 Gen2 MINI Cooper ragtop
'90 LR 90 SW
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Joined: Sep 2016
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Thanks No the daft question - any specific measurement for refitting it? Guess who just unscrewed it without taking any measurements?
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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Joined: Jul 2007
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Member of the Inner Circle
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Somewhere on here is a DaveW thread on replacing one.
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
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Joined: Sep 2016
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Has a lot to Say!
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2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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Joined: Jul 2007
Posts: 26,748 Likes: 419
Member of the Inner Circle
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Member of the Inner Circle
Joined: Jul 2007
Posts: 26,748 Likes: 419 |
I'd PM Dave. I think it is tucked away in a post with lots of fixes to his plus 4
JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
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Joined: Feb 2024
Posts: 31 Likes: 4
Just Getting Started
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Just Getting Started
Joined: Feb 2024
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Inductive/magnetic sensors for crankshaft, camshaft or speed usually have a gap between 0.5...1.0mm. You can't do anything wrong, start with 0.8mm and check how even the gap around the circumference of the trigger wheel is. What you should aim for is a correct reading on the Speedometer under all environmental conditions. If you experience dropouts or false-reading on the Speedo, reduce the gap to get stable results.
Peter
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I’ve done that, thanks.
And thanks Peter. I do have a witness mark on the sensor so that’s a starting point!
2012 Plus 4 in Sport Green. Much comfier than the Plus 8!
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