Tacho wiring help needed...

[Justin & Muttley]

My new 914 tacho arrived today 8) - I wondered if anyone could confirm which wires connect where:

I have connectors on the back labelled:
" +12 " (positive feed from ignition?)
" 1 " (Earth?)
" - " (Negative from coil?)

Any help greatly appreciated

 

[stagger lee]

dude, the +12v is the positive feed to power up the unit. off the back of your ignition find the wire that becomes live (+12v) hwne you trun the ignition on. the wire that feeds the coil ideally.

1, earth, is just that earth. connect this to the meatl work of the van somewhere convenient.

' - ', neagtive on coil. this is the signal wire for the tacho from your coil. the negative, '-' side of the coil is the points side. what i mean there is it's the terminal on the coil that the wire coming from the points/distributor connects to on the coil, capisce?

i can't, but i'm sure someone will post up an image to clear things up etc.

so do those tachos fit in the spare clock hole?

 

[Araon]

http://www.shoptalkforums.com/viewtopic.php?p=956032&sid=1af305b16ece6248318350e66da15aff" onclick="window.open(this.href);return false;

these guys are running 1 to neg coil and - to chassis

 

[stagger lee]

.........
" +12 " (positive feed from ignition?)
" 1 " (Earth?)
" - " (Negative from coil?)
.......

ooh, i see what happened here, i took your retorical? questions in the brackets as labels you did not understand the meanings of, so all i've done really is defined those terms and been condascending (sp?) in the process, sorry bud, i'll get me coat, taxi for one etc. :roll:

 

[Justin & Muttley]

.........
" +12 " (positive feed from ignition?)
" 1 " (Earth?)
" - " (Negative from coil?)
.......

ooh, i see what happened here, i took your retorical? questions in the brackets as labels you did not understand the meanings of, so all i've done really is defined those terms and been condascending (sp?) in the process, sorry bud, i'll get me coat, taxi for one etc. :roll:

Not at all - I put the question marks to show my guesses!!
I just wanted confirmation before I connect it up!!

 

[Justin & Muttley]

http://www.shoptalkforums.com/viewtopic.php?p=956032&sid=1af305b16ece6248318350e66da15aff

these guys are running 1 to neg coil and - to chassis

Thanks for the links dude - If I get a chance later I'll try to connect it up!

 

[Justin & Muttley]

I've mounted the tacho in a sturdy cardboard box and wired it up near the engine bay - worked first time!!!

Sorry about the quality of the video (crappy phone ) - thanks everyone for your help!! 8) 8)



EarlyBay help in action again - you guys...

 

[Harlequin]

Try Again --I Want to see it hit the Red :mrgreen: