Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

another fuel pump question

Thread Tools
 
Search this Thread
 
Old Mar 6, 2008 | 10:20 AM
  #1  
stevecossy's Avatar
stevecossy
Thread Starter
PassionFord Regular
 
Joined: Sep 2007
Posts: 469
Likes: 0
From: east yorks
Default another fuel pump question

When rewiring the pump i know to use the 2 orig wires from pump as switching for the relay, but do i plug the earth wire into the earth on relay and take a new earth wire from the pump to a good new earth point on chassis?
I think this is how most have done theirs but just have that doubt i not remember right Doh.
Also i will be taking a live direct from battery to relay in boot and from relay to pump etc.
Cheers again fellas. steve
Reply
Old Mar 6, 2008 | 12:11 PM
  #2  
mechanic28's Avatar
mechanic28
10K+ Poster!!
iTrader: (5)
 
Joined: Apr 2007
Posts: 13,649
Likes: 4
From: london
Default

on your new relay you use your original earth for the switching side on term 85 or 86 cant remember which,and then as you say use a new earth from the pump to the chassis i used the rear anti roll bar!

Last edited by mechanic28; Mar 6, 2008 at 12:12 PM.
Reply
Old Mar 6, 2008 | 01:55 PM
  #3  
tabetha's Avatar
tabetha
20K+ Super Poster.
 
Joined: Jul 2006
Posts: 24,596
Likes: 4
From: uk
Default

I would use a new earth and live, straight from the battery, the chassis where it is exposed is going to build up a high resistance.
14/030 wire is more than suffecient for this, use the live after the cut out, so keeping that in circuit.
If you look behind the rear seat on the metalwork near the top there is a 8mm hole that is just right for securing a relay holder to, you can then take the relay out as an added security measure, if at shows etc.
tabetha
tabetha
Reply
Old Mar 7, 2008 | 04:53 AM
  #4  
stevecossy's Avatar
stevecossy
Thread Starter
PassionFord Regular
 
Joined: Sep 2007
Posts: 469
Likes: 0
From: east yorks
Default

Nice 1 thanks alot guys, hope to do it at weekend.
Regards steve
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rob Wells
Ford Mondeo Including ST
6
Apr 18, 2023 12:19 AM
JK12
Pictures, video & Photoshop Forum
33
Apr 26, 2021 12:09 PM
Focosmitch
Cars for Sale
9
Nov 5, 2015 08:12 PM
Focosmitch
Ford RS Cosworth Parts for Sale
5
Nov 3, 2015 04:08 PM
Focosmitch
Ford RS Cosworth Parts for Sale
15
Oct 7, 2015 03:43 PM




All times are GMT. The time now is 02:04 AM.