sooty
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| posted on 26/2/17 at 05:23 PM |
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Fuel gauge dampening - Old skool way
Got a Smiths type fuel gauge, which get abit erratic when tank is half-full or less.
In the old skool days, I can remember fitting a capacitor or resister in the circuit to slow the fluctuation of the gauge.
If memory is right, a capacitor with fitted in parallel of approx. 400mf.
Correct/incorrect ??
Sylva Striker
2.0ltr Silvertop Zetec on 45 Webers with Megajolt V3
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gremlin1234
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| posted on 26/2/17 at 05:41 PM |
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quote:
Originally posted by sooty
Got a Smiths type fuel gauge, which get abit erratic when tank is half-full or less.
In the old skool days, I can remember fitting a capacitor or resister in the circuit to slow the fluctuation of the gauge.
If memory is right, a capacitor with fitted in parallel of approx. 400mf.
Correct/incorrect ??
I assume you mean 400uf, which should work nicely (use electrolytic at least 16v, preferably 25v rating )
but a regulator like the lm7812 or lm7810 would work better
http://uk.farnell.com/taiwan-semiconductor/ts7810cz/ic-v-reg-10v-7810-to-220-3/dp/7174020
edit:
I am sure there have been 'electronic' regulators available, which just replace the bi-metallic switching regulator.
[Edited on 26/2/17 by gremlin1234]
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matt5964
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| posted on 26/2/17 at 08:30 PM |
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You could change the sender to a tube version
http://technisolltd.co.uk/products/fuel-sender-for-square-or-rectangular-tanks
https://www.merlinmotorsport.co.uk/s/instruments-gauges/vdo/vdo-dip-tube-senders
They will reduce the effect of sloshing fuel in part full tanks
Luego velocity XT 2.0ltr 221.3bhp 178.9lbft
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sooty
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| posted on 27/2/17 at 10:30 AM |
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Thanks,
But the sender and pick-up separately are on the side of the tank.
Sylva Striker
2.0ltr Silvertop Zetec on 45 Webers with Megajolt V3
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ken555
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| posted on 27/2/17 at 06:41 PM |
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The trick used to be fitting an old condenser from the distributer across the input and earth.
Had to do this on the Mini's otherwise you got spiky reading when cornering hard.
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sooty
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| posted on 6/3/17 at 09:59 PM |
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OK thanks,
Refreshing my memory, does the the condenser connect to the link between the sender and gauge and its body grounded.
thanks
Sylva Striker
2.0ltr Silvertop Zetec on 45 Webers with Megajolt V3
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ken555
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| posted on 6/3/17 at 11:34 PM |
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quote:
Originally posted by sooty
OK thanks,
Refreshing my memory, does the the condenser connect to the link between the sender and gauge and its body grounded.
thanks
From the gauge "input" from the sender to ground.
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sooty
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| posted on 7/3/17 at 04:14 PM |
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thanks
Sylva Striker
2.0ltr Silvertop Zetec on 45 Webers with Megajolt V3
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