Earth Locations - Diagram Ideally

[shalmaneser 26]

For some reason when I turn the lights on my rev counter goes a bit funny. Similarly with the indicator, it fluctuates with the flashing of the lights. Brake light does the same thing This seems likely to be an earth problem - does anyone have a diagram of the location for the earths for the front/rear lights and indicators?

 

Cheers,

 

Adam.

[welshpug 1,656]

rear earth is near the left hand rear light cluster in the boot, front earths either side of the headlights, also on the steering column bracket.

[shalmaneser 26]

cheers, will have a look.

[CopperBottom 1]

Id deffo like a diagram or pic of where all the earth points are on the car (Ill start with the ones listed above) but if there are any more please could you guys list them

 

rear earth is near the left hand rear light cluster in the boot,

front earths either side of the headlights

on the steering column bracket

 

Cheers

Edited September 16, 2012 by CopperBottom

[cheesegrater 43 1 Cars]

Top of gearbox to chassis

[shalmaneser 26]

Thought I'd just do a quick update.

 

I work in London atm so the car doesn't get used much which has put this on the back burner somewhat, but it would seem that my suspicions about the earth were correct. After attaching a jump cable to the engine and running it to the negative side of the battery I managed to remove any symptoms of either the rev counter jumping about when the lights were on and the engine itself seemed to start up nicely.I got a length of 27amp wire from Halfords and some ring teminals and have run a wire straight from the cylinder head to the earth point on the chassis.

 

This seems to have cured the problem (hopefully!). The odd thing is that the cable from the gearbox to the battery negative seems to be in great condition (externally, anyway...), but given that my fix has worked I'm not too stressed about it, although it's something to bear in mind.

 

27 amps is obviously a bit low for the whole starting circuit but it's more of an auxiliary circuit than a main one. I'll get an ammeter on it at some point to find out how much current is flowing through and might uprate it accordingly.