Testing fuel sender

Post by **ninja.turtle007** » 21 Feb 2011, 22:43

The fuel gauge isn't working. Can the fuel sender be tested insitu? If so how is this done?

Thanks in advance.

Post by **syncropaddy** » 21 Feb 2011, 23:23

Pull the wires off the sender and bridge them. If the gauge works then the sender is knackered. If not its the gauge.

Post by **ninja.turtle007** » 21 Feb 2011, 23:25

syncropaddy wrote:Pull the wires off the sender and bridge them. If the gauge works then the sender is knackered. If not its the gauge.

Of course, that makes sense. Thanks.

Post by **ELVIS** » 21 Feb 2011, 23:52

Ive tested guage by putting 12v across it and all ok. Also tested voltage regulator and aok.
Wire to sender has 12v but i never bridged em

Post by **Simon Baxter** » 22 Feb 2011, 11:03

Fuel gauges (and temp gauges) are regulated to 5v, don't put 12v across them!

Post by **ELVIS** » 22 Feb 2011, 17:45

mmmmmmmmmmm

sure i read in Betleys it was 12v

it did move up with 12v though

voltage reg was showing correct reading (cant remember what manual said but was bang on middle of upper/lower limits)

showed 12v as plug at tank but i never bridged em.

Post by **ninja.turtle007** » 22 Feb 2011, 18:24

Fixed!! Rusty connector at sender unit. It had welded itself together. Ripped it off and solered new connector.

Post by **syncropaddy** » 22 Feb 2011, 19:49

ninja.turtle007 wrote:Fixed!! Rusty connector at sender unit. It had welded itself together. Ripped it off and solered new connector.

That is usually the problem. Glad its sorted

Post by **ninja.turtle007** » 22 Feb 2011, 20:06

syncropaddy wrote:
ninja.turtle007 wrote:Fixed!! Rusty connector at sender unit. It had welded itself together. Ripped it off and solered new connector.

That is usually the problem. Glad its sorted

Thanks.

Post by **Simon Baxter** » 22 Feb 2011, 21:41

Voltage is regulated otherwise the the temp and petrol gauge would read low just after starting and read higher once the battery voltage has recovered after starting.
Also, if it did run from supply voltage then the gauges would read lower when you switched the lights on.

Post by **ELVIS** » 22 Feb 2011, 22:26

Simon Baxter wrote:Voltage is regulated otherwise the the temp and petrol gauge would read low just after starting and read higher once the battery voltage has recovered after starting.
Also, if it did run from supply voltage then the gauges would read lower when you switched the lights on.

thats why your a clever little clopper and im not!

Glad you got it sorted easily Tom

Post by **Tatty Chap** » 16 Apr 2011, 08:55

Can you fiddle with the sender connectors by slightly dropping the tank, really dont want to remove all the breathers etc

Post by **syncropaddy** » 16 Apr 2011, 11:45

Yes you can. The sender connector terminal is encircled in red and you can gain direct access without any messing about.

Post by **ninja.turtle007** » 16 Apr 2011, 12:52

syncropaddy wrote:Yes you can. The sender connector terminal is encircled in red and you can gain direct access without any messing about.

On a Syncro yes, but not a 2WD I think.

Post by **syncropaddy** » 16 Apr 2011, 19:42

ninja.turtle007 wrote:
syncropaddy wrote:Yes you can. The sender connector terminal is encircled in red and you can gain direct access without any messing about.

On a Syncro yes, but not a 2WD I think.

This IS a Syncro 4wd section .......

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Testing fuel sender

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