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GreaseMonkey
Joined: Mon Nov 03, 2014 10:04 am Posts: 112
Vehicle: MG410 WT
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 Posted: Tue Aug 11, 2015 11:27 pm |
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Hey guys, Got a 1litre with the 4 speed box, it will drive around fine through all gears going forwards but the engine will cut/stall out as soon as I put it into reverse. Anyone experienced this problem? Thanks in advance! 
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jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
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 Posted: Wed Aug 12, 2015 12:56 am |
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Unplug the reverse switch and/or pull the reverse light fuse and see what happens?
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OFF-CHOPS
Joined: Thu Apr 10, 2014 7:29 pm Posts: 34
Vehicle: 1998 Vitara SV420 2.0ltr 2dr
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 Posted: Thu Aug 13, 2015 12:54 pm |
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13007 Location: Melbourne
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 Posted: Thu Aug 13, 2015 1:02 pm |
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How does the carby know what gear the car is in?
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OFF-CHOPS
Joined: Thu Apr 10, 2014 7:29 pm Posts: 34
Vehicle: 1998 Vitara SV420 2.0ltr 2dr
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 Posted: Thu Aug 13, 2015 1:12 pm |
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The reverse gear in a transmission needs more power than all other gears, idle screw might need adjusting?
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Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13007 Location: Melbourne
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 Posted: Thu Aug 13, 2015 2:34 pm |
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Reverse needs more power? really? How do you figure that? It has the same number of gear contacts as 5th in an overdrive box and a lower ratio than 1st forwards (generally) so where is the power consumption coming from?
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sideways

az supporter
Joined: Fri Oct 29, 2010 1:53 pm Posts: 5935 Location: Northcliffe, W.A.
Vehicle: LJs, Sierra, Jimny, Swift.
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 Posted: Thu Aug 13, 2015 4:30 pm |
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Does it die as soon as you select reverse or when you let the clutch out?
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GreaseMonkey
Joined: Mon Nov 03, 2014 10:04 am Posts: 112
Vehicle: MG410 WT
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 Posted: Thu Aug 13, 2015 10:47 pm |
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As soon as I select reverse, with the clutch still all the way in! Very weird problem
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DC3PTIKON
Joined: Fri Nov 28, 2014 3:16 pm Posts: 149
Vehicle: Vitara SV420
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 Posted: Fri Aug 14, 2015 12:17 am |
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Does the vehicle lurch backwards/crunch a bit when reverse is selected and it stalls? Could be that the clutch is staying partially engaged, due to a worn clutch, pressure plate/bent fingers or could be a worn spigot bearing. I'm not sure if your clutch is cable or hydraulically controlled, but check your clutch cable adjustment, or if you have a dodgey slave or master that's not allowing full disengagement of the clutch. Forward gears may be ok due to being synchro gears and allowing selection to take place. Even oil or some other contaminant may be causing the clutch to drag.
All these suggestions are only relevant if you answered yes to the first questions though.
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zukenutter

az supporter
Joined: Sun Feb 08, 2009 10:30 pm Posts: 9045 Location: Brisneyland
Vehicle: 2006 Jimny JLX
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 Posted: Fri Aug 14, 2015 9:53 am |
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Do as JDK81 says
My nephews Sierra did this, pretty sure you'll find it's something wrong with the reverse sender on the gearbox or its wiring.
LOLs at some responses
_________________ Click WWW below for STICKERS
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Marko_SJ
Joined: Tue Jan 17, 2012 1:40 am Posts: 2979 Location: Darwin, NT
Vehicle: WT sierra, GU CRD
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 Posted: Fri Aug 14, 2015 4:43 pm |
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zukenutter wrote: Do as JDK81 says
My nephews Sierra did this, pretty sure you'll find it's something wrong with the reverse sender on the gearbox or its wiring.
LOLs at some responses I heart <3 this thread
_________________ I love ZD30. :)
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