AuthorTopic: V8 wont start, Please Help.  (Read 3349 times)

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Offline 300TDi Disco

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V8 wont start, Please Help.
« on: February 01, 2009, 22:57:07 »
Firstly i notice when i had the ignition on the rev counter needle would flick from one side to the other and the got lack of power, so i changed the leads  over for some performance silicone ones and now it doesn't start. I then changed the leads back to the original ones and it still doesn't start. I have had the lead from the coil to the head of the engine to check out for a spark and guess what, No Spark. I have changed the coil as i thought the coil had gone down but still no spark. any idea's???? It has a range rover 3.5 v8 engine if it makes any difference. Hope someone can help, Cheers
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Offline craig_midz

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Re: V8 wont start, Please Help.
« Reply #1 on: February 01, 2009, 23:44:14 »
igntion amplifier on side of dizzy or wire come off coil possiably

Offline Range Rover Blues

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Re: V8 wont start, Please Help.
« Reply #2 on: February 02, 2009, 00:55:33 »
Did you take the dizzy cap or rotor arm off when doing the leads?
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #3 on: February 02, 2009, 10:55:26 »
igntion amplifier on side of dizzy or wire come off coil possiably

I had a thought of the amplifier. next thing i will try. cheers
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #4 on: February 02, 2009, 10:56:14 »
Did you take the dizzy cap or rotor arm off when doing the leads?

I have took the cap off but didn't touch the rotor arm. What you thinking?
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Offline forestrynick

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Re: V8 wont start, Please Help.
« Reply #5 on: February 02, 2009, 13:46:44 »
Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick
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Offline Range Rover Blues

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Re: V8 wont start, Please Help.
« Reply #6 on: February 03, 2009, 10:48:59 »
Did you take the dizzy cap or rotor arm off when doing the leads?

I have took the cap off but didn't touch the rotor arm. What you thinking?

Sometimes you can damage the guts of the dizzy by pulling the rotor arms off, you need to hold the metal post down with a screwdriver.
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #7 on: February 03, 2009, 16:03:00 »
Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.
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Offline Range Rover Blues

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Re: V8 wont start, Please Help.
« Reply #8 on: February 05, 2009, 01:53:28 »
Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.

Cool, which EFi? and is the amp screwed to the dizzy (most common)
Blue,  1988  Range Rover 3.5 EFi with plenty of toys bolted on
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #9 on: February 05, 2009, 18:12:17 »
Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.

Cool, which EFi? and is the amp screwed to the dizzy (most common)


Amp is screwed on the side of the dissy. I have spoke to someone today and they said about the connections but i have checked them and still nothink.
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #10 on: February 05, 2009, 18:35:10 »
I have had a look at it today and i have a cable going straight to the amp but only give a current when ignition is on. and the cable off the amp pack going to the positive on the coil??? (Thinking somethink wrong ere). Am i right in saying that both cable's should go to positive and negative on the coil from the amp pack? Does anyone know how many cables should be coming off the coil? I have: Positive:- Amp pack, rev counter, and fuel cut off relay Negative:fuel cut off relay, Small round condensor which grounds to the body. Does the amp give the coil, power to create a spark?
« Last Edit: February 05, 2009, 18:46:42 by V8defender90 »
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #11 on: February 05, 2009, 19:40:35 »
Here is a crappy diagram but it shows whats going on with my wiring.
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Offline solihull-mick

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Re: V8 wont start, Please Help.
« Reply #12 on: February 05, 2009, 19:58:35 »
If thats how its wired up no wonder it wont start mate!
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Offline 300TDi Disco

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Re: V8 wont start, Please Help.
« Reply #13 on: February 05, 2009, 20:36:14 »
If thats how its wired up no wonder it wont start mate!

Thats what i thought.
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