Jump to content


Photo
- - - - -

Automatic Gearbox - Gear Position Wires


  • Please log in to reply
13 replies to this topic

#1 OJM

OJM

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 201 posts
  • Location: Midlands

Posted 19 November 2009 - 03:32 PM

My mate has an auto Mini, and is having problems with the wires / bolt that works out whether the gearbox is in neutral.

If the gearbox is in neutral, then the engine will start when the key is turned. However, if the gearbox is in gear, then it won't let you start it.

However, my mate's gearbox doesn't get this right all the time, and 75% of the time won't let him start the car.

Does anyone know how you override this? Possibly by removing the wires / bolt and putting the right ones together. He's not bothered about losing the 'don't start if it's in gear function', as he's got a manual engine and gearbox to drop in soon.

Cheers!

#2 Dan

Dan

    On Sabbatical

  • TMF+ Member
  • PipPipPipPipPipPipPipPipPipPipPip
  • 21,354 posts

Posted 19 November 2009 - 03:37 PM

You DO NOT over-ride this system. It is there for a reason. An automatic car that can start in gear is an accident waiting to happen and it could easily kill you. What if you drop a spanner on the solenoid while working in the engine bay? The car will kill you. Bodging this system is absolutely idiotic, don't do it. fix it properly.

#3 cobblers

cobblers

    Mini Mad

  • Members
  • PipPipPipPip
  • 181 posts

Posted 19 November 2009 - 04:07 PM

It's not that different to leaving a manual car in 1st gear though?
A manual car in first will jump forward and knock you (It's happened to me!) whereas an automatic would gently push against you a bit.
Unless I'm missing something fundamental?

#4 Spitz

Spitz

    Camshaft & Stage Two Head

  • Members
  • PipPipPipPipPipPipPipPip
  • 1,716 posts
  • Location: Saskatchewan

Posted 19 November 2009 - 04:16 PM

You DO NOT over-ride this system. It is there for a reason. An automatic car that can start in gear is an accident waiting to happen and it could easily kill you. What if you drop a spanner on the solenoid while working in the engine bay? The car will kill you. Bodging this system is absolutely idiotic, don't do it. fix it properly.


As I recall ( did this earlier this year to switch to manual ) the wires are right at the shifter unit. You just need to join them together!
Safer just to fiddle with the adjuster however until ready for the manual install.

#5 OJM

OJM

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 201 posts
  • Location: Midlands

Posted 19 November 2009 - 04:43 PM

It's not that different to leaving a manual car in 1st gear though?
A manual car in first will jump forward and knock you (It's happened to me!) whereas an automatic would gently push against you a bit.
Unless I'm missing something fundamental?


My thoughts exactly!

I thought the system was there to protect the gearbox, not to stop it moving in gear...

#6 Guess-Works.com

Guess-Works.com

    Gearbox Guru

  • Traders
  • PipPipPipPipPipPipPipPipPipPipPip
  • 19,838 posts
  • Local Club: Rugby Classic Mini Owners Club

Posted 19 November 2009 - 05:22 PM

Yes, but a manual will just lurch forward and stall, an auto will start and drive away...

Not clever on the 3rd floor of a multi story !

Fix the system, don't bodge it...

#7 Dan

Dan

    On Sabbatical

  • TMF+ Member
  • PipPipPipPipPipPipPipPipPipPipPip
  • 21,354 posts

Posted 19 November 2009 - 05:32 PM

As John says, a manual will never be turning fast enough on the starter to actually catch and run if it's in gear. Because of the torque converter an auto will. It will start, it will run, it will drive over you and it will keep going, or it will push you against the back wall of your garage and crush you or it will find some equally stupid and humiliating way to kill you. Or as John also says, there are other ways for it to cause a problem even if you aren't working on your car. Driving off the top of a car park because you were too tight to buy a new inhibitor switch would not make for a good epitaph.

#8 OJM

OJM

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 201 posts
  • Location: Midlands

Posted 23 November 2009 - 09:13 AM

So, any tips on fixing the issue then?

#9 M J W J

M J W J

    One Carb Or Two?

  • Members
  • PipPipPipPipPipPipPip
  • 976 posts
  • Location: Midlands
  • Local Club: not yet

Posted 23 November 2009 - 09:41 AM

A new switch should solve it. First check to see if there is any play in the gear selector. I had this problem with my mini when I first bought it and drove it back (pronptly converted the car to manual). Wiggling the gearshift around got the car to start. Your gear selector may be saying your car is in gear when in reality it is just the gear selector that is not quite in the correct place.

As everybody else says don't dissable it. It is there for a reason

#10 OJM

OJM

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 201 posts
  • Location: Midlands

Posted 23 November 2009 - 08:55 PM

Can't seem to find the switch on MiniSpares - don't know what I'm looking for - would you mind posting a link please?

#11 cobblers

cobblers

    Mini Mad

  • Members
  • PipPipPipPip
  • 181 posts

Posted 23 November 2009 - 09:06 PM

When the manual car turned over, it managed to shove me (stumbling backwards out of its way) a good few meters with a lot of force
I was splicing and soldering an engine loom on a 106. I had the solder sat in the scuttle and was pulling lengths down. I pulled the solder down to feed some solder in to the connection for the starter solenoid - It caught on the positive battery terminal and engaged the starter. It could only happen to me! (I'd have disconnected the battery but I needed to buzz wires through and needed power to switch the relays)

From experience of being ran over my by own car, I think I'd rather an automatic gently shove forward than the manual lurching forward with great force. It didn't start (the starter solenoid was the first wire I did!)

Unless mini automatics push forward on idle a lot harder than every other automatic I've used? Most things, even with the choke on only gave a gentle push that you could probably stop by hand?


But yeah, you should fix it properly!

#12 Steve123

Steve123

    Starting My Mini Up

  • Noobies
  • Pip
  • 1 posts

Posted 26 November 2009 - 12:06 AM

Can't seem to find the switch on MiniSpares - don't know what I'm looking for - would you mind posting a link please?

Unfortunately, as I was informed by the owner of a specialist shop near where I live, the starter inhibitor switches fitted to these automatics were discontinued in 2000 and apparently are not made by any other companies (which is why niether of us could find it on Mini Spares). He suggested that the only way to get a replacement is to hit the scrap heap. But, after a search on Google, I saw websites that said they had them (the price was around the £30 mark) so it might be worth looking further than just the popular parts sites.

As I have the same problem with mine I was thinking of bypassing it but after reading the posts I probably won't. Just to settle a query of mine - if you do bypass the inhibitor would it then mean an MOT fail?

#13 Guess-Works.com

Guess-Works.com

    Gearbox Guru

  • Traders
  • PipPipPipPipPipPipPipPipPipPipPip
  • 19,838 posts
  • Local Club: Rugby Classic Mini Owners Club

Posted 26 November 2009 - 07:49 AM

I may have a 2nd hand switch ( well I have a selector unit ) is it a 1275 or 998, as the selector is different 998' don't have a Park while the 1275's do.

Edited by GuessWorks.co.uk, 26 November 2009 - 07:49 AM.


#14 OJM

OJM

    Mini Mad

  • TMF+ Member
  • PipPipPipPip
  • 201 posts
  • Location: Midlands

Posted 26 November 2009 - 05:41 PM

I think my mate has a 998




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users