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Sold
by simon8201 - 09/09/26 01:46 PM
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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Apr 2017
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New to Talk Morgan
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OP
New to Talk Morgan
Joined: Apr 2017
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I’ve just changed my kingpins and removed the speedo sensor. Put everything back and the suspension is fine but my speedo isn’t working. Is the a set gap the sensor has to be off the back of the hub. Or have I just killed it
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Joined: Aug 2010
Posts: 5,468 Likes: 172
Charter Member
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Charter Member
Joined: Aug 2010
Posts: 5,468 Likes: 172 |
Yes there is a specific gap. I cannot find the thread at present, but DaveW detailed the replacement of the sensor and the gap on a thread in TalkMorgan.
2mm rings a bell but I cannot be sure.
Also, the sensor is quite delicate.
Paul
Costock, UK
Plus Four 75th - Furka Rouge - Pip
Disco 5
Teddy - 17h1 Irish Draught cross
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Joined: Feb 2016
Posts: 8,696 Likes: 416
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,696 Likes: 416 |
Good memory Paul  The gap according to Dave on his Roadster is max 2mm although I think he aimed for 1mm. Dave's full article for axle mounted speed sensor (assuming same for Plus 4) here.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Jun 2015
Posts: 2,095 Likes: 75
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2015
Posts: 2,095 Likes: 75 |
Replacement sensor available from Demon Tweeks : Revotec speed sensor; just under £60 inc VAT.
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: Dec 2008
Posts: 22,371 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
Good memory Paul The gap according to Dave on his Roadster is max 2mm although I think he aimed for 1mm. Dave's full article for axle mounted speed sensor (assuming same for Plus 4) minus working pictures here. Scroll down to get the images!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: May 2015
Posts: 327
Learner Plates Off!
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Learner Plates Off!
Joined: May 2015
Posts: 327 |
The sensor has a small yellowish light adjacent to the cable entry. With the speedo powered up and road wheel rotated as one of the 5 bolt heads passes the probe the light should illuminate, it's quite dim, you need to look closely. Be sure the 3 wires are connected correctly.
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Joined: Feb 2016
Posts: 8,696 Likes: 416
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,696 Likes: 416 |
Good memory Paul The gap according to Dave on his Roadster is max 2mm although I think he aimed for 1mm. Dave's full article for axle mounted speed sensor (assuming same for Plus 4) minus working pictures here. Scroll down to get the images! Thanks Dave - link on my original post ammended accordingly.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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