14 replies to this topic

[gooley]

I leave my Torana for a few weeks and I get a Fuel smell in the cabin. I found that the Fuel Sender Unit has a slight small hairline crack in one of the pipes. Now I have an aftermarket Fuel tank fitted and not sure if it's original fuel sender unit. I don't know how to Identify the Fuel Sender Unit to replace it.

 

Also the Fuel Gauge goes empty to full when I brake or accelerate. (The needle moves freely when Vehicle moves as Fuel is flushing side to side within the fuel tank) and then it will go to the correct position for how much fuel in the tank. (I hope that made sense, Also all Earths in GTR Dash are all good).

 

I also feel that the fuel sender is wrong as I will fill up half a tank and it will already be full on the gauge.

 

What would be the best option to do here? Get same Fuel Sender Unit or look for a different type and what type?

Edited by gooley, 14 September 2013 - 10:03 AM.

[S pack]

Hi Jason,

 

More info please. Is your aftermarket fuel tank one of the repro XU1 tanks or an aluminium drop tank?

Are you running original GTR instruments?

Magnetic type fuel guages are prone to unwanted needle fluctuation due to fuel movement in the tank, however yours sounds like it is abnormally sensitive. More than likely the sender unit is faulty.

 

Not 100% sure but I think there is only one manufacturer of the repro original type tank sender units.

 

Can you put up pics of the fuel tank, the sender unit and the cracked pipe you speak of.

The LC/LJ original type tank senders have only one 5/16" pick up pipe.

 

Cheers

Dave.

[gooley]

I will take a photo of the Fuel Sender Unit when I remove it from the Fuel Tank/Cell. and I'll also take a photo of the Fuel Tank/Cell..... sometime this week. So keep an eye out of this thread within this week or next....cheers

[S pack]

There is a story behind the fuel senders, for a start LC senders were different in production, however were superseeded in their replacements just like many electrical componets do today, with changed wiring for later models and adapter wiring leads supplied like in Holden doors.

 

The original Torana LC senders had a male spade connector, but this changed either late 71 or early 72 to a male pin type connector, any replacements for the early LC ones during the LJ period would have required a modified terminal connector to convert to the later mode type, I do not think that these changes show up in the parts books

 

Mike 

Crap, the genuine LC spare part Std tank sender units and XU1 tank sender units had the male spade connector. Years ago you could walk into a Holden Dealer and buy both LC and LJ tank sender units. If you look in the parts books you'll find the LC units have a different part number to the LJ units.

 

If at some point in time the LC units were superseded to the LJ units then you won't find that info in the spare part catalogues.

GMH had dedicated books and microfiche that listed NLA and superseded parts.

[S pack]

Did I say S model and XU-1 had different type electrical connectors? Don't think I did?

Perhaps I was looking at a 72 print LC parts book when I worked out that LJ units were used for the earlier LC ones, I will have another look.

 

Do you know anyone who is making the proper LC sender units?

 

Mike  

Did I say S model and XU-1 had different type electrical connectors? Don't think I did?

 

No, you didn't. I was just clarifying for the benefit of other forum members.

 

 

Do you know anyone who is making the proper LC sender units?

 

No idea.

 

Also want to take this opportunity to apologise for starting off my reply with 'Crap'.

I was having a bad day.

 

Cheers

Dave.

Edited by S pack, 02 October 2013 - 10:11 PM.

[gooley]

Ok sorry for late photos. So after reading the info you guys replied, I do have the pin type but a terminal connector has been fitted onto the pin. So no problem there unless that is the reason it is fluctuating the Fuel Gauge Needle somehow? You wouldn't think so.... anyway have a look at the photos and tell me what you think.

 

Fuel Tank - Top - If you have info on these, please tell

 

Fuel Tank - Bottom View

 

Fuel Sender Unit - Note the Pin connector with Terminal Fitted to it

 

Fuel Sender Unit 2

 

Fuel Sender Unit 3

\

 

Fuel Sender Unit 4

 

Fuel Sender Unit 5

 

6 Fuel Sender Unit with Crack in pipe (not drug related.. lol)

Edited by gooley, 04 October 2013 - 09:21 PM.

[gooley]

ok I understand about the solder. I would rather buy a new one because if the fluctuating problem could possibly be a sender unit fault then I'll just replace it and they are not dear at all.

 

I did check rare spares website and found 2 fuel sender units.

 

FUEL TANK SENDER UNIT LC LJ ALL EXC XU-1 GTR

PART NO: SU1010N

http://www.rarespare...product=SU1010N

 

FUEL TANK SENDER UNIT LC LJ TORANA XU-1 GTR 

PART NO: SU1008N

http://www.rarespare...product=SU1008N

 

See how the pipes are different. Very Different

Edited by gooley, 04 October 2013 - 09:50 PM.

[S pack]

Jason, your sender unit isn't a Torana unit, It looks like a HQ ute, van and 1 Tonner sender unit to suit magnetic fuel gauge.

 

GMH Pt No. 2815305

Edited by S pack, 05 October 2013 - 12:42 AM.

[gooley]

SENDER TANK HQ-HZ THERMAL SED/WAG/COUPE 6/8 NO A/C
PART NO: SU1019N
http://www.rarespare...product=SU1019N
 
Looks close to it.... it is different but this one from rare spares doesn't have a Ute/Van type. I'll have to search around the internet for others

EDIT: I did realise after posting this one that it is the wrong type...and this one is not the magnetic type

Edited by gooley, 05 October 2013 - 08:24 AM.

[gooley]

I found the proper one on Rare Spares website

SENDER TANK HQ MAGNETIC UTE/VAN/1TON EXC 308W/AIR
PART NO: SU1014N

I can't link the page for some odd reason.
It is the correct one.

Thanks S Pack

Edited by gooley, 05 October 2013 - 08:29 AM.

[S pack]

No problems Jason.

 

http://www.rarespare...product=SU1014N

[S pack]

As far as the gauge fluctuating, either there is no or insufficient baffling, if this is the case nothing will stop your gauge needle going nuts.

Mike

Or the float arm contact shoe button isn't maintaining proper contact with the rheostat.