Hadders
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| posted on 25/1/13 at 09:01 PM |
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Earthing sensors - what's your solution
I've done a search with no luck.
When you have a sensor such as a water temp sender in an alloy pipe joiner and you need to earth it what have you done? I'm sure LB members will
have some ingenious solutions. So far i have a washer under the sensor and I'm trying to attach a spade terminal! what have you done?
PS. The washer is flat against the sensor housing, so screwing a small screw into the washer will not work. Ideas?
TIA
Ben
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Ben_Copeland
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| posted on 25/1/13 at 09:20 PM |
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Instead of spade terminal, why not use a ring terminal?
Ben
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NigeEss
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| posted on 25/1/13 at 09:21 PM |
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Strip a couple inches of insulation from some wire, form the bare wire into a loop the size
of the required washer and the fully solder the loop. Fit to sensor and it'll seal like a copper
washer with a nice wire to fut a spade on.
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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Hadders
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| posted on 25/1/13 at 09:38 PM |
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I've tried ring terminals Ben but they all seem to be too small.
NigeEss - thanks that sounds worth a try.
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big-vee-twin
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| posted on 25/1/13 at 10:06 PM |
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Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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NigeEss
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| posted on 25/1/13 at 10:38 PM |
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quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Because my solution is "Locost" 
That does look mighty pretty though 
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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Hadders
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| posted on 25/1/13 at 11:02 PM |
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Yeah. Looks great but unfortunately I already have one of those without the earth screw.
No doubt this is a stupid question, but i didn't think ali was a good conductor. I thought you needed steel to conduct well. As in connected
directly to the sensor itself. I guess not from that link.
[Edited on 25/1/13 by Hadders]
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NigeEss
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| posted on 25/1/13 at 11:19 PM |
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Whilst ally is not high on the list of electrical conductivity it does conduct well enough for automotive applications.
If it didn't, then car manufacturers would not bolt earths to heads, gearboxes etc, all of which have sensors screwed
into them.
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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Hadders
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| posted on 25/1/13 at 11:50 PM |
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Ah that makes sense. One less issues to deal with! Thanks for your help.
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ashg
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| posted on 26/1/13 at 12:47 AM |
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its a bit crude but shove a bit of wire between the ali tube and hose and wang the hose clip up as tight as you can. or just wrap the wire round the
ali pipe and put a hose clip over the top of it.
the proper solution would be to replace the sender for a 2 pin version.
[Edited on 26/1/2013 by ashg]
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907
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| posted on 26/1/13 at 06:19 AM |
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Make a tab washer from sheet with the tab the same size as a male spade.
Paul G
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Ben_Copeland
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| posted on 26/1/13 at 07:46 AM |
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quote:
Originally posted by Hadders
I've tried ring terminals Ben but they all seem to be too small.
NigeEss - thanks that sounds worth a try.
What size do you need?
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
Enter Your Details Here
http://www.facebook.com/EquinoxProducts for all your bodywork needs!
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big-vee-twin
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| posted on 26/1/13 at 08:32 AM |
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quote:
Originally posted by NigeEss
quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Because my solution is "Locost"
That does look mighty pretty though
When it comes to the engine, reliability is more important than saving a few pounds, do the job right and you will not be breaking down 100miles from
home
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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rusty nuts
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| posted on 26/1/13 at 08:41 AM |
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quote:
Originally posted by big-vee-twin
quote:
Originally posted by NigeEss
quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Because my solution is "Locost"
That does look mighty pretty though
When it comes to the engine, reliability is more important than saving a few pounds, do the job right and you will not be breaking down 100miles from
home
Seconded! Is the alloy adapter thick enough to drill and tap to take a securing screw for an earth terminal ? or do you know anyone that can Tig weld
alloy to make a boss. All of the other suggestions apart from a twin terminal sensor are just building in unreliability
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scudderfish
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| posted on 26/1/13 at 09:16 AM |
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quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Is that effectively earthing through the coolant? If it's sat in the middle of a rubber hose I can't see how else it has conductivity
with the block.
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MikeRJ
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| posted on 26/1/13 at 09:54 AM |
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quote:
Originally posted by scudderfish
quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Is that effectively earthing through the coolant? If it's sat in the middle of a rubber hose I can't see how else it has conductivity
with the block.
 It has a earthing screw so you can attach an earth wire properly via a ring terminal.
Jamming bits of wire under the sensor is not "Locost", it's simply a bodge. However, if you were feeling keen you could fabricate a
washer with an integrated spade terminal out of e.g. copper.
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omega 24 v6
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| posted on 26/1/13 at 11:19 AM |
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Whearthing tab from a steel wire armoured cable gland?? Any local electricians might be able to help you.
earth tab
If it looks wrong it probably is wrong.
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scudderfish
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| posted on 26/1/13 at 11:23 AM |
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quote:
Originally posted by MikeRJ
quote:
Originally posted by scudderfish
quote:
Originally posted by big-vee-twin
Why not buy a proper alloy adapter with earthing dcrew there about 10 pounds on ebay 36mm Alloy Water Temperature Radiator Hose
Sensor Adaptor Silver ASH | eBay
Is that effectively earthing through the coolant? If it's sat in the middle of a rubber hose I can't see how else it has conductivity
with the block.
It has a earthing screw so you can attach an earth wire properly via a ring terminal.
Jamming bits of wire under the sensor is not "Locost", it's simply a bodge. However, if you were feeling keen you could fabricate a
washer with an integrated spade terminal out of e.g. copper.
Yep, I'm being dense 
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