Hi chaps
Just bought some SMITHS dials off ebay, but the fuel gauage doesn't appear to be working.
ON the original Nippon dials, the PCB (well, printed plastic circuitry!) on the back has every position occupied - whereas the plug has a 2 'blank'.
The SMITHS dials have 1 blank bit.
Basically, should the SMITHs dials simply plug n play - a direct replacement for the Nippons? or is the circuit different to the Nippons?
Cheers
Smiths & Nippon dials - differences?
Started by
Russ528
, Jun 18 2007 07:05 PM
7 replies to this topic
#2
clubman katie B.F
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Camshaft & Stage Two Head
Posted 18 June 2007 - 09:28 PM
i have done this before and didn't find a problem, but i was going from an old smiths set up to a nippon set up
#3
minidaves
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Posted 18 June 2007 - 09:38 PM
depends partly on yr but the normal problem is rev counters
dave
dave
#4
clubman katie B.F
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Camshaft & Stage Two Head
Posted 19 June 2007 - 04:40 PM
rev counter doesn't appear to be part of the wiring loom....a positive from the ignition to negative at the coil. and this is on an original 1275gt
#5
taffy1967
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Posted 19 June 2007 - 08:11 PM
Have you tried shorting the sender on the side of the fuel tank? With the ignition on the fuel gauge should then read full and if it does then you could have a problem with the float/wire inside the actual fuel tank.
If the gauge still refuses to move then the problem probably lies elsewhere, but most later Nippon Seiki instruments don't have a replaceable voltage stabiliser like what the Smiths instruments were blessed with, because Nippon gauges have the stabiliser electronically built into the gauge.
It might be a long shot, but a failing or knackered wiper motor "park-switch" can also cause a short circuit which affects the gauges, so if you're wipers don't park themselves any more or only do it intermittently, then replace the park-switch.
If the gauge still refuses to move then the problem probably lies elsewhere, but most later Nippon Seiki instruments don't have a replaceable voltage stabiliser like what the Smiths instruments were blessed with, because Nippon gauges have the stabiliser electronically built into the gauge.
It might be a long shot, but a failing or knackered wiper motor "park-switch" can also cause a short circuit which affects the gauges, so if you're wipers don't park themselves any more or only do it intermittently, then replace the park-switch.
Edited by taffy1967, 19 June 2007 - 08:13 PM.
#6
Russ528
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Posted 20 June 2007 - 08:29 AM
Well, as it happens, I won 2 auctions for dials 
The second set arrived yesterday, and the fuel gauge works - as does everything else.
The second set arrived yesterday, and the fuel gauge works - as does everything else.
#7
BabyBek
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Posted 20 June 2007 - 08:35 AM
Yaay! So dodgy fuel guage no 1 is in the bin I take it!?!
#8
Russ528
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Mini Mad
Posted 20 June 2007 - 11:26 AM
Nah... I always seem to end up hanging onto stuff!
The new one still only goes up to 1/2 way though, just like the original Nippon ones, so the fuel sender must be squiffy.
The new one still only goes up to 1/2 way though, just like the original Nippon ones, so the fuel sender must be squiffy.
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