THank you Bob. The drawing of thew sender at that link looks pretty much like the one I have.
I will post some pics as a general reply.
Hi John, Thank you for that useful info.
Please see the pics attached showing the original sending, which unfortunately has been painted over in the distant past, so there are no identifying maerks of any kind.
The idea of a paralllel resistor ideaappeals but I guess it depends which of the two you mention mine is??
The Smiths gauge is marked in gallons as you can see and has the number ident. x30406 at the top.
Thank you everyone. All views are very much appreciated and "Alice" says thank you as well.
Please forgive my mangled use of the reply and inserting images above.
The original setup looks very much like that provided in the link from bob46320.
From John Cornforth's information it would appear that my "old" sender is a Smiths G33 and therefore presents near zero ohms when full and about 30 ohms when empty. The gauge is in gallon markings by the way.
The modern sender is 150 ohms when full and 3 ohms when empty. Is this reversed action handleable in anyway??
If the sender is going to be a problem? My next thought is to try using the original sender (I think they are a common 6 bolt fitting). I would rig a separate earth all the way back from the sender to the gauge in the hope that the irratic behaviour of the gauge might be tamed some what. If all fails the wooden dipstick will have to suffice, but it would be good to get some guidance from the gauge. At least to let me know when to pull in to top-up the tank!!??
If the new sender is going to be no good I will cancel it (£35) and make sure the manufacturer sizes the sender "hole" as per my original tank that he has for a pattern.
Any other thoughts would be welcome.
I will post some pics as a general reply.
Hi John, Thank you for that useful info.
Please see the pics attached showing the original sending, which unfortunately has been painted over in the distant past, so there are no identifying maerks of any kind.
The idea of a paralllel resistor ideaappeals but I guess it depends which of the two you mention mine is??
The Smiths gauge is marked in gallons as you can see and has the number ident. x30406 at the top.
Thank you everyone. All views are very much appreciated and "Alice" says thank you as well.
Please forgive my mangled use of the reply and inserting images above.
The original setup looks very much like that provided in the link from bob46320.
From John Cornforth's information it would appear that my "old" sender is a Smiths G33 and therefore presents near zero ohms when full and about 30 ohms when empty. The gauge is in gallon markings by the way.
The modern sender is 150 ohms when full and 3 ohms when empty. Is this reversed action handleable in anyway??
If the sender is going to be a problem? My next thought is to try using the original sender (I think they are a common 6 bolt fitting). I would rig a separate earth all the way back from the sender to the gauge in the hope that the irratic behaviour of the gauge might be tamed some what. If all fails the wooden dipstick will have to suffice, but it would be good to get some guidance from the gauge. At least to let me know when to pull in to top-up the tank!!??
If the new sender is going to be no good I will cancel it (£35) and make sure the manufacturer sizes the sender "hole" as per my original tank that he has for a pattern.
Any other thoughts would be welcome.