Classic cars forum & vehicle restoration.
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Miken
Joined: 24 Dec 2012 Posts: 544
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norustplease
Joined: 11 Apr 2011 Posts: 779 Location: Lancashire
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Posted: Wed Apr 15, 2020 9:44 am Post subject: |
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Firstly, had you established that the original gauge was at fault rather than the sender unit. Senders tend to suffer long term, floats flood or the float arms jam in the empty position if the tank is left empty for prolonged periods. The windings can fail also. Shorting out a sender by earthing the power lead should make the gauge go to full, indicating that the sender is faulty. If the gauge still doesn't move, then it is indeed, dead.
In terms of matching a new sender with the new gauge, will a Rover P5 sender fit your tank? If so, then the obvious course is simply to install, connect to the original wire and you should be in business. Have a look at Rover specialist Wadhams website, they probably have an image of one there which you can compare with your original. It may not of course be accurate, but you can get a feel for that by progressively filling the tank and noting the reading. _________________ 1953 Citroen Traction
1964 Volvo PV544
1957 Austin A55 Mk 1
Boring Tucson SUV |
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Miken
Joined: 24 Dec 2012 Posts: 544
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Posted: Wed Apr 15, 2020 10:43 am Post subject: |
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Thanks for the reply. I have tested the old gauge as you suggest and it's definitely not working. I've had a look, the rover sender unit looks completely different to the float on a lever type commonly found in minis, minors MG,s etc . |
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Ray White
Joined: 02 Dec 2014 Posts: 6319 Location: Derby
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Miken
Joined: 24 Dec 2012 Posts: 544
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Posted: Tue Apr 21, 2020 7:35 pm Post subject: |
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I hadn't seen that. However a bit of research has revealed that a sender needs to be matched to its gauge and also, a bi-metalic petrol gauge needs different type of sender to a moving iron type.
With this in mind, plus the fact that I don't know what I'm doing, I have sent all my components off to Speedy Cables to sort out. I'm sure it will work out cheaper than me buying various random parts and hoping that they work when put together. |
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Miken
Joined: 24 Dec 2012 Posts: 544
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Posted: Tue Apr 21, 2020 7:35 pm Post subject: |
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I hadn't seen that. However a bit of research has revealed that a sender needs to be matched to its gauge and also, a bi-metalic petrol gauge needs different type of sender to a moving iron type.
With this in mind, plus the fact that I don't know what I'm doing, I have sent all my components off to Speedy Cables to sort out. I'm sure it will work out cheaper than me buying various random parts and hoping that they work when put together. |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1735 Location: Above the snow line in old Monmouthshire
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Posted: Wed Apr 22, 2020 12:23 am Post subject: |
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Miken wrote: | I hadn't seen that. However a bit of research has revealed that a sender needs to be matched to its gauge and also, a bi-metalic petrol gauge needs different type of sender to a moving iron type.
With this in mind, plus the fact that I don't know what I'm doing, I have sent all my components off to Speedy Cables to sort out. I'm sure it will work out cheaper than me buying various random parts and hoping that they work when put together. |
Let us know how you get on. I have a longstanding issue with a non functioning fuel gauge, I know it's down to mismatched components but fitting the right components leads to further issues... |
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Miken
Joined: 24 Dec 2012 Posts: 544
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Posted: Fri May 15, 2020 5:48 pm Post subject: |
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Bitumen Boy wrote: | Miken wrote: | I hadn't seen that. However a bit of research has revealed that a sender needs to be matched to its gauge and also, a bi-metalic petrol gauge needs different type of sender to a moving iron type.
With this in mind, plus the fact that I don't know what I'm doing, I have sent all my components off to Speedy Cables to sort out. I'm sure it will work out cheaper than me buying various random parts and hoping that they work when put together. |
Let us know how you get on. I have a longstanding issue with a non functioning fuel gauge, I know it's down to mismatched components but fitting the right components leads to further issues... |
OK, so this is how I got on.
I sent the sender and gauge off to Speedy cables. Left it a couple of weeks and rang up on Monday morning to check they had received it. They had and said someone would be in touch with a quote.
They rang back in the afternoon with the price and informed me that they were busy and it could take up to 6 weeks.
I asked them to proceed.
Thursday afternoon they rang and said it was done and asked for payment so they could dispatch.
Arrived Friday morning!!
fitted and working Friday afternoon.
I am very pleased with the work.
The scabby old sender unit looks like new and the gauge has been similarly cleaned, repaired and calibrated.
It was quite pricey some may think (£180 delivered back to my door) but so what, Like a lot of people, I havent been spending much on petrol these last few weeks so who cares. |
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