Register Login
Shop4Parts - UK's largest online superstore for FIAT and Alfa Romeo parts
Reply
 
Thread Tools
Old 12-07-2017   #1
Join Date: Jul 2008
Location: Gloucestershire
Posts: 258
Thanks: 13
Trader Rating: 1
elbandito472 has donated!
United Kingdom 
Hi all, been away for a while but im back....Panda-ish question about tacho install..

So, after a brief spell away from classic Fiats after selling Giuseppe the Rally Panda (Very much missed), i stupidly bought a 126 Bis in 2014 which i had always had a hankering for....long story short the engines are terrible in every way. I Spent 2 years rebuilding the engine inc. fitting Abarth parts and 11 miles into the maiden voyage it died. The rear crank bearing material crumbled apart like hard cheese. Seeing as all of the bearings come from the same supplier i decided to fit (squeeze) a 999 FIRE engine into it and give up on the stupid Bis lump. I got one in the form of an UNO donor car which has the carb & Marelli ignition. It is now in the car and seems to drive ok...no major failures yet... Im in the process of finishing everything up now, just a couple of bulkheads to fabricate and its pretty much done.....
so...
I want to fit a rev counter and i need to locate the signal wire on the coil end. Apparently some late 80's Pandas were fitted with the same system so i was wondering if anyone could help. The wiring diagram does not seem to match my loom quite perfectly so i was wondering if it would work if i joined the rev counter signal wire to the negative wire that runs from the coil to the dizzy. Any help would be greatly received. I know its weird asking for help here but its basically fitted with a Panda heart now....ive never been that fond of Unos. Cheers.

Just to note... The loom matches the right hand diagram except i have no idea what 'MB' is and i only have one green wire....the other wire is a faded greyish/pink colour and is cut short in the insulation (does not connect to anything). Cheers
Attached Thumbnails
Click image for larger version

Name:	Early Panda late uno wiring.jpg
Views:	19
Size:	162.1 KB
ID:	182283  
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by elbandito472; 12-07-2017 at 23:23.
elbandito472 is offline Reply With Quote Quote 
Old 14-07-2017   #2
769cc Mayhem!
 
Didge3's Avatar
Join Date: May 2012
Location: Quite south.
Posts: 2,955
Thanks: 49
Trader Rating: 0
Didge3 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Bit of a rubbish photo but on my old Panda the yellow wire took a signal from a spade connection on the coil and then just a ground from anywhere to get my rev counter up and running.

Thanks elbandito472, onemanmade thanked for this post
Likes elbandito472, onemanmade liked this post
__________________
FIAT-LESS
Didge3 is offline Reply With Quote Quote 
Old 19-07-2017   #3
Join Date: Jul 2008
Location: Gloucestershire
Posts: 258
Thanks: 13
Trader Rating: 1
elbandito472 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Thanks Didge, but my coil is a coil pack....not sure if that makes a difference?
__________________
Fiat 126 Bis 999 FIRE Special
elbandito472 is offline Reply With Quote Quote 
Old 19-07-2017   #4
769cc Mayhem!
 
Didge3's Avatar
Join Date: May 2012
Location: Quite south.
Posts: 2,955
Thanks: 49
Trader Rating: 0
Didge3 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Quote Originally Posted by elbandito472 View Post
Thanks Didge, but my coil is a coil pack....not sure if that makes a difference?
Ah sorry about the misunderstanding. I was unaware any of the carburetted Pandas had coil packs, or is it injection?
__________________
FIAT-LESS
Didge3 is offline Reply With Quote Quote 
Old 19-07-2017   #5
Join Date: Jul 2008
Location: Gloucestershire
Posts: 258
Thanks: 13
Trader Rating: 1
elbandito472 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Its carb'd but with electronic ignition.
__________________
Fiat 126 Bis 999 FIRE Special
elbandito472 is offline Reply With Quote Quote 
Old 19-07-2017   #6
2 Pandas-drives a Stilo:(
 
firstcar-Y10's Avatar
Join Date: Jun 2008
Location: Epworth
Posts: 3,808
Thanks: 224
Trader Rating: 1
firstcar-Y10 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Contactless with the ignition module on the dizzy and the single coil like the 4x4 system right. There are minor differences on the coil connectors but you should have something like this:

Tacho feed here comes from the side with the green cable - the red wire in the pic that doesn't go into the sheath
__________________
THE MIGHTY GRUMBLEWEED

Last edited by firstcar-Y10; 19-07-2017 at 21:42.
firstcar-Y10 is offline Reply With Quote Quote 
Old 19-07-2017   #7
769cc Mayhem!
 
Didge3's Avatar
Join Date: May 2012
Location: Quite south.
Posts: 2,955
Thanks: 49
Trader Rating: 0
Didge3 has donated!
United Kingdom 
Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Mine was carbed with electronic ignition as well, just take a signal from one side of the coil
__________________
FIAT-LESS
Didge3 is offline Reply With Quote Quote 
Old 13-08-2017   #8
Join Date: Jul 2008
Location: Gloucestershire
Posts: 258
Thanks: 13
Trader Rating: 1
elbandito472 has donated!
United Kingdom 
Thumbs up Re: Hi all, been away for a while but im back....Panda-ish question about tacho insta

Quote Originally Posted by firstcar-Y10 View Post
Contactless with the ignition module on the dizzy and the single coil like the 4x4 system right. There are minor differences on the coil connectors but you should have something like this:

Tacho feed here comes from the side with the green cable - the red wire in the pic that doesn't go into the sheath

Ta, that pretty much answers it. Thanks very much. Its similar on the uno loom, just a plug with the wires in instead.
__________________
Fiat 126 Bis 999 FIRE Special
elbandito472 is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
Panda U1601 code with no Tacho or Speedo skydome Lets Talk FIAT 7 22-06-2017 15:32
(G) How do you install a third seat belt in the back of a fiat panda housecat Panda 19 05-04-2014 00:36
(T) Tacho question Sebulba Cinquecento / Seicento 0 09-03-2009 18:03
(T) How hard is it to install a tacho???? _Jax_ Punto (Mk2/2b) 1 26-04-2005 11:17
Cheap-ish Rage back boxes Anonymous FIAT Boo Archives 3 22-04-2004 22:12