| Author |
Message |
|
samfieldhouse
Firing on two.
Joined: February 11th, 2009, 12:32 am
Posts: 3324
Location: Chichester, West Sussex
|
 6v fuel gauge on 12v
|
| January 26th, 2014, 9:03 pm |
|
|
|
Nelsthebass
Firing on two.
Joined: October 5th, 2009, 8:22 pm
Posts: 1415
Location: Stone, Staffs
|
Re: 6v fuel gauge on 12v Could you not wire a resistor in the feed line?
_________________
1987 2CV Special
2014 Suzuki Swift Sport
2015 Lexus NX300h
1966 Ami Break
|
| January 26th, 2014, 10:33 pm |
|
|
|
samfieldhouse
Firing on two.
Joined: February 11th, 2009, 12:32 am
Posts: 3324
Location: Chichester, West Sussex
|
Re: 6v fuel gauge on 12v Apparently yes but I wondered if a proper 6v fees would be more stable.
|
| January 26th, 2014, 11:47 pm |
|
|
|
ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
|
Re: 6v fuel gauge on 12v A stablised 6 volt supply is the only option; a single resistor won't work because the current drawn by the gauge and sender varies with the level of fuel. samfieldhouse wrote: Apparently yes but I wondered if a proper 6v fees would be more stable.
_________________
|
| January 27th, 2014, 12:26 am |
|
|
|
Sean
Firing on two.
Joined: April 22nd, 2009, 11:06 pm
Posts: 3684
Location: Ecosse
|
Re: 6v fuel gauge on 12v or just fit a newer dash then youll have a working fuel gauge AND mph speedo 
_________________
Kissing the Lash
"Any advice of a technical nature is given on the understanding that I've actually done this shit, not just read about it in D*lly club mag some time ago.
|
| January 27th, 2014, 9:03 am |
|
|
|
samfieldhouse
Firing on two.
Joined: February 11th, 2009, 12:32 am
Posts: 3324
Location: Chichester, West Sussex
|
Re: 6v fuel gauge on 12v ken wrote: A stablised 6 volt supply is the only option; a single resistor won't work because the current drawn by the gauge and sender varies with the level of fuel.
Cheers for that  Sean wrote: or just fit a newer dash then youll have a working fuel gauge AND mph speedo Yeah but where's the fun in that 
|
| January 27th, 2014, 11:06 am |
|
|
|
bobh
Firing on two.
Joined: March 26th, 2010, 8:41 pm
Posts: 234
|
Re: 6v fuel gauge on 12v When I changed my '63 AZU to 12 volt, I left fuel gauge and sender the same except for the dash lamp. Works perfectly. Note, there isn't a stabilised supply, just the alternator regulator. The only small problem I have is that the speedo reads 10 kph fast.
|
| January 27th, 2014, 2:52 pm |
|
|
|
samfieldhouse
Firing on two.
Joined: February 11th, 2009, 12:32 am
Posts: 3324
Location: Chichester, West Sussex
|
Re: 6v fuel gauge on 12v There is quite some debate as to wether 6v gauges will work on 12v, the VW forums are full of it...
|
| January 27th, 2014, 3:04 pm |
|
|
|
Tripyrenees
Firing on two.
Joined: December 17th, 2012, 10:03 pm
Posts: 966
Location: Luscan, Pyrenees, FRANCE
|
Re: 6v fuel gauge on 12v Why not try it  Then there is no debate 
|
| January 27th, 2014, 4:43 pm |
|
|
|
Little Louis
Field Plougher
Joined: February 8th, 2009, 12:07 am
Posts: 2357
|
Re: 6v fuel gauge on 12v Sam, you literally just need 2 resistors to step 12V to 6V in the form of a voltage divider. So your Vin is 12V... The V out is controlled by the ratio of the two resistors.. put simply Vout = (R1/ (R1+R2))*Vin Basically to drop the voltage by half you need all the same resistor values...Using 150Ohm resistors Vout = (150/300) *12 = 6 
|
| January 27th, 2014, 9:20 pm |
|
|
