Classic cars forum & vehicle restoration.
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Ray White
Joined: 02 Dec 2014 Posts: 6354 Location: Derby
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Posted: Mon Sep 30, 2019 10:41 pm Post subject: |
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Phil - Nottingham wrote: | The petrol gauge will either work properly or not at all. This applies to most but some may work back to front.
If there are any modern "solid-state" components they may well be ruined |
Yes indeed. I would like to know how I could identify any solid state components... and if they are present how to circumvent them with something more traditional. I would much prefer not to be wise after the event. |
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lowdrag
Joined: 10 Apr 2009 Posts: 1586 Location: Le Mans
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Posted: Tue Oct 01, 2019 1:55 am Post subject: |
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As regards SU fuel pumps, I seem to get a call during every Le Mans Classic for Jaguar spares, and the SU pump is almost a given. People take my spare one and order me a replacement. It's interesting to note that the latest has dual polarity. Solid state and automatically detects + or - earth. |
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Phil - Nottingham
Joined: 01 Jan 2008 Posts: 1252 Location: Nottingham
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Posted: Tue Oct 01, 2019 7:48 am Post subject: |
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The age of the component is the starting point to identify solid-state stuff.
Then look inside to see what capacitors, resistors, transistors chips and diodes. The smaller these are the less likely it will dual polarity and also if it sealed/encapsulated.
Diodes can often be quickly reversed if big enough.
After that it becomes more complicated. Electronic stuff degrades anyway after 20-30 years and solder joints decay _________________ Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2 |
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Ray White
Joined: 02 Dec 2014 Posts: 6354 Location: Derby
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Posted: Sat Oct 12, 2019 8:03 pm Post subject: |
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I eventually contacted the supplier ETB instruments of Southend on Sea and asked them. Their advise was that there were no solid state components in the sender unit and I should have no problems regarding polarity so long as I remembered to transpose the earth to positive when following the fitting instructions.
I have also heard that the Tripple M cars will use this type of dip tube sender.
I have bought a new petrol cap that I can use to disguise the top - in other words - a dummy cap - that makes it look like I have a twin filler tank.
Quite sporting, I thought.
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