oil/water sensors

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moggiethouable
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oil/water sensors

Post by moggiethouable »

I have looked at various threads on the fitment of oil and temperature gauges, but failed miserably when looking to see photos of where the senders go.
Does anyone have pictures of where they fit said sensors please? or a good description?
Thanks.
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bmcecosse
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Re: oil/water sensors

Post by bmcecosse »

What engine do you have ? Oil pressure needs a T piece fitted in place of the oil pressure switch - and then the switch and the pipe to the gauge are fitted to the arms of the T..... If 1098 engine - then the temp gauge sender fits in place of a plug you remove at the front of the head - just under the thermostat (above the generator) - normally needs an adapter. If a 948 you need a thermostat cover with a suitable socket for the gauge.
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moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

1098, I did see the plug for the water sensor where you have described it and wondered.
And I believe I have all the bits ordered, threaded adaptor T piece etc and all to fit the oil pressure gauge.
Thanks for that, thats Saturday sorted :D
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JOWETTJAVELIN
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Re: oil/water sensors

Post by JOWETTJAVELIN »

Oil gauge job is the easiest, water temp you must drain the coolant to fit.

I can upload photos if needed as I have just fitted a neat dual gauge to my 803, which needed some clever modifications to fit the water temp sender, thanks to those people who helped me, some very good ideas. :D
moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

JOWETTJAVELIN wrote:Oil gauge job is the easiest, water temp you must drain the coolant to fit.

I can upload photos if needed as I have just fitted a neat dual gauge to my 803, which needed some clever modifications to fit the water temp sender, thanks to those people who helped me, some very good ideas. :D
Thats very kind, a picture speaks a thousand words.
Dont spend lots of time on it but by all means, thanks.
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Declan_Burns
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Re: oil/water sensors

Post by Declan_Burns »

Pressure Gauge arrangement[frame]Image[/frame]
Temperature sensor arrangement (1098cc)[frame]Image[/frame]
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bmcecosse
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Re: oil/water sensors

Post by bmcecosse »

Assumes an electric temp gauge - if using the (much better) mechanical gauge - the sensor bulb goes in that hole with an adapter piece which should really come with the gauge. If an electric gauge - be sure to supply it from the regulated volt supply (light green on the stabiliser on back of speedo).
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moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

Thank you fellas.
All noted.
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moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

bmcecosse wrote:Assumes an electric temp gauge - if using the (much better) mechanical gauge - the sensor bulb goes in that hole with an adapter piece which should really come with the gauge. If an electric gauge - be sure to supply it from the regulated volt supply (light green on the stabiliser on back of speedo).
It is electric, I take it that it doesnt matter that my car is still positive ground, as I am simply creating a circuit.
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JOWETTJAVELIN
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Re: oil/water sensors

Post by JOWETTJAVELIN »

I would take extreme care - most only work with neg. earth. If I remember correctly the Smiths' is neg. earth.

They are sensitive instruments and it could be ruined if you connect it the wrong way, and certainly if you use it for any length of time without a voltage regulator.

The capillary one is the best as BMC says, because it reads whether the ignition is on or off and probably gives a more accurate reading.
moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

JOWETTJAVELIN wrote:I would take extreme care - most only work with neg. earth. If I remember correctly the Smiths' is neg. earth.

They are sensitive instruments and it could be ruined if you connect it the wrong way, and certainly if you use it for any length of time without a voltage regulator.

The capillary one is the best as BMC says, because it reads whether the ignition is on or off and probably gives a more accurate reading.
Pleased I asked now,I shall double check thanks.
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bmcecosse
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Re: oil/water sensors

Post by bmcecosse »

It's a hot wire instrument - it doesn't care a hoot about polarity.......... :wink:
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moggiethouable
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Re: oil/water sensors

Post by moggiethouable »

bmcecosse wrote:It's a hot wire instrument - it doesn't care a hoot about polarity.......... :wink:
Wonderful, that explains the lack of plus or minus stampings on the back, I thought I better check just the same.
Thanks.
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