Is there an earth point at the rear of a '99 500?
Is there an earth point at the rear of a '99 500?
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Discussion

briantvr350i

Original Poster:

115 posts

279 months

Saturday 9th February 2019
quotequote all
Hi,

reading the SH bible and searching posts on here I'm aware of the two earth points under the heater panel, the one on under the drivers side wheel arch and the one under the radiator at the very front...

Is there a collection of earths wired connected to the chassis anywhere rear of the doors? I assume the black wires from the rear lights join up somewhere under the carpet, but where do they go then?

Regards,

Brian (and a Green 500)

SMB

1,523 posts

287 months

Saturday 9th February 2019
quotequote all
The rear earth is behind the fuel tank on one of the 4 bolts that go into the end of the chassis.

phillpot

17,433 posts

204 months

Saturday 9th February 2019
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In the boot, conveniently hidden behind the fuel tank possibly scratchchin

briantvr350i

Original Poster:

115 posts

279 months

Sunday 10th February 2019
quotequote all
Thanks guys,

Looks like I'm going to have to make one then, has anyone done this already?

R Brian (and a green 500)


SMB

1,523 posts

287 months

Sunday 10th February 2019
quotequote all
briantvr350i said:
Thanks guys,

Looks like I'm going to have to make one then, has anyone done this already?

R Brian (and a green 500)
If the tank is nearly empty then you can undo the straps and move it away from the bulkhead to undo the bolt, easy enough.

Steve_D

13,800 posts

279 months

Monday 11th February 2019
quotequote all
The earth will be at the top left bolt holding the body to the chassis.
If you are not willing to move the tank you could make a new earth point. The small bundle of earth wires come down in the area behind the filler pipe. Find the bundle there and remove the loom tape to confirm all the wires in that bundle are black. you could then cut them there and fit a new heavier gauge wire and take that to another chassis earth point.

Steve

ChimpOnGas

9,637 posts

200 months

Monday 11th February 2019
quotequote all
The following images may also help?






The next few images are of my car during the LPG conversion some 6 years ago, and show the substantial frame built to mount the LPG tanks safely & directly to the chassis at the four body mounting points.











As you can see its a little more tricky for me to get to those earth wires now, but fortunately the whole tank frame is now a huge earth in itself, in my case the earth wires are effectively attached in four places to the rear of the chassis using the body mounting bolts.

If anything the tank frame stiffens up the rear end of the chassis too wink