my 90 set on fire twice in 3 days!!

If your worried about corrosion coat them in grease oil whatever and they will be ok for ages. Jai

jzcktv said:

Spot on CharlesY,

By the way the Rave manual has a section called Electrical Library which then has a sub section called "Earth Points & Header Joints" which shows you where the primary earthing points are. Duplicate earth paths should be avoided as you can end up with current circulating between them and different potentials giving varying electrical performance of the components around the vehicle.

Hope you sort it, but earth strapping is what you need.

Click to expand...

Can you explain this to me?

The only reason i can see for this would be bimetallic corrosion, resulting in an electro galvanic reaction, generating a very small voltage. In which case, you should have protected the joint better anyway.

Why do FFR landies have every panel etc earth strapped together?

If everything is earthed to everything, then you can be confident that anything that needs an earth can get one nearby.

Unless my understanding of electrical circuits is fundamentally wrong...

Thats the way earth it up dude...

Blurry 'eck im stunned...

I cnt just be right on this one, i must be bloody right!

Even BoB has agreed with me! He he..

Seriously though, im still waiting an explanation from jcvtjfhgs about it.

boydy1989 said:

Can you explain this to me?

The only reason i can see for this would be bimetallic corrosion, resulting in an electro galvanic reaction, generating a very small voltage. In which case, you should have protected the joint better anyway.

Why do FFR landies have every panel etc earth strapped together?

If everything is earthed to everything, then you can be confident that anything that needs an earth can get one nearby.

Unless my understanding of electrical circuits is fundamentally wrong...

Click to expand...

We were discussing earthing, particuarly the engine which has a very high current requirement. It is better to have a single good earth path rather than just multiplying poor eathing paths or using sub-optimal cabling. As the current flows through the circuits poor earthing will develop a voltage differential between the battery negative terminal and the poor eath, the higher the resistance the greater the voltage difference. The vehicle electrics, especially around the engine control systems all share the same earthing point behind the engine, that way they float up and down together at least. Eathing the engine in one place and the control systems (e.g. dashboard, ECU etc.) in another is a bad idea.

Earth bonding (conecting everything together) reduces radio interference, I think that's why the FFRs are done.

Long answer hope it helped.

jzcktv said:

.

Earth bonding (conecting everything together) reduces radio interference, I think that's why the FFRs are done. it will also help your general eletrical system...

Long answer hope it helped.

Click to expand...

i deleted the unrelevant stuff boyd

you are quite right. One good earth is better than several bad ones, but as i said the first time round a poor earth (caused by corrosion etc) is still a poor earth - multiple good earths is not a bad thing!

At least we kinda agree now

An BoB, thanks for your summary

boydy1989 said:

you are quite right. One good earth is better than several bad ones, but as i said the first time round a poor earth (caused by corrosion etc) is still a poor earth - multiple good earths is not a bad thing!

At least we kinda agree now

An BoB, thanks for your summary

Click to expand...

No worries

Oh and I caught my first signature line....