Hi,
Since my last post asking if anyone had a spare one of these, to which I wasn't surprised to get a low response, since I know they're like 'Hens teeth', I decided it was time to take more direct action and see if I could fix the problem myself by venturing into the (to me) unknown interior of my fuel gauges ( I had two - both at that time non-functioning...) ....
This is what I found, which I thought I'd share, as I seem to have got one working, so this is to encourage others in need to have a play, as I believe it is 'do-able' and could save both time and money......
This first shot shows the one I couldn't repair and why: For some reason one of the adjustable coils (I'm sure someone will be on here with their correct name) had rotated completely and was touching the outer casing, this in itself would be reversible but for the case that in this instance the wire linking the two coils has also snapped....
[frame][/frame]
This second shot shows the rear with the nut completely removed from the peg (so I could turn it round easier) and the adjusting slots (one each side) which allows you to move the coils closer or further apart, in order to set up (or reset) your gauge. [frame][/frame] This is the way round they should appear. [frame][/frame]
The other problem of course with this one is the snapped link wire.... one that I am unable to fix..... fortunately for me my other one wasn't snapped.[frame][/frame]
What they both had in common was that the nuts (indicated below) which secure the pegs internally, which (externally) the negative and positive feeds attached to, had worked loose and all needed tightening back up....
Please note that the soldered 'leg' shown below each nut (most noticeable on the Red (live) side) must face down and be completely clear of any contact with the outer casing or will short circuit and blow fuses (as I found out! )
NB: the red and grey parts act as a kind of non conductive shielding and if you take this apart they must go back in upon reassembly. [frame][/frame][frame][/frame]
This shot shows (for those who didn't know) what happens when you move the coils along their adjustment slots, they move closer together and closer to the part of the gauge where the indicator needle attaches. I find it best to set the gauge up to a known (ie: a full tank).[frame][/frame]
I guess the final ingredient when setting this back up is patience..................
Oh, and I have no idea whether the blob of solder on top of my broken coil is original or part of someone else's earlier efforts.....
My gauges, like my speedos are out of other cars which have been taken apart, so may have 'moved' around a bit and had others 'adjusting' them before me, so I guess this is where untouched cars have the advantage, in that their unmessed with units should not fail...........
Finally you need to put it back together, again time and patience can achieve an acceptable result....[frame][/frame][frame][/frame]
Hopefully at some point, someone will find this of some use........
For those with more knowledge than me on here: please feel free to 'correct' where necessary, as I do not know all the correct terms / names for the internal workings, so I can only produce this from the 'laymans' point of view.
I am now keeping my fingers and toes crossed that my 'working' one stays that way!!...............
Best wishes,
Mike.
Gold speedo type fuel gauge part 2
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Gold speedo type fuel gauge part 2
1954 Series 2: 4 door: "Sally" -- Back on the ground with (slave) wheels and waiting to be resprayed......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
Re: Gold speedo type fuel gauge part 2
Well done - and a great tutorial for us! So I guess the two coils are making magnets - and carefully moving the pole pieces in and out sets up the needle movement.
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Re: Gold speedo type fuel gauge part 2
Thanks BMC,
Yes, that would fit, though I also found that final adjustment is about patience and lots of it.
It felt like I was adjusting one side by millionths of a millimetre to get it right.......
Time for a cuppa!!
Best wishes,
Mike.
Yes, that would fit, though I also found that final adjustment is about patience and lots of it.
It felt like I was adjusting one side by millionths of a millimetre to get it right.......
Time for a cuppa!!
Best wishes,
Mike.
1954 Series 2: 4 door: "Sally" -- Back on the ground with (slave) wheels and waiting to be resprayed......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
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Re: Gold speedo type fuel gauge part 2
If I remember correctly (never done it), one adjuster should be set so that the needle shows full with a full tank and starts to drop after a few miles, not so that it is still reading full after 50 miles and the other should be adjusted so that the gauge reads empty with about half a gallon in the tank
[sig]3580[/sig]
Re: Gold speedo type fuel gauge part 2
Mike
Can you please repost the photos of the original post as the originals cannot be opened?
Pete
Can you please repost the photos of the original post as the originals cannot be opened?
Pete
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Re: Gold speedo type fuel gauge part 2
You are hoping? He was last active when?
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Re: Gold speedo type fuel gauge part 2
Jagnut66 AKA Mike is always active.
Anyhow it is easy to view the photos by right clicking image icon, open in new tab, gives 404 error, edit the search bar to add board. between https// and mmoc (https//board.mmoc) press enter, magically reveals the image..
Below I’ve added all the right photos but not necessarily in the right order
Anyhow it is easy to view the photos by right clicking image icon, open in new tab, gives 404 error, edit the search bar to add board. between https// and mmoc (https//board.mmoc) press enter, magically reveals the image..
Below I’ve added all the right photos but not necessarily in the right order
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Re: Gold speedo type fuel gauge part 2
Can only add 5 at a time:-
Regards John
Hope that helpsRegards John
Re: Gold speedo type fuel gauge part 2
Thank you.