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80 series sub tank not changing over

Tech Talk for Cruiser owners.

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Location: Tewantin

80 series sub tank not changing over

Post by flyinwall »

i have an 80 series and the sub tank is not changing over from the main tank what could be the cause and i have pulled the switch apart and it seems to be fine
R.I.P. Darryl "DAZZA" Mutch 02/08/1978 - 26/08/2012 aged 34 years ... You will be missed my little brother.

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Post by Stuart McMurtrie »

What engine type - Diesel or Petrol???
They both have very different systems.
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Location: Tewantin

Post by flyinwall »

its a 90 model diesel
R.I.P. Darryl "DAZZA" Mutch 02/08/1978 - 26/08/2012 aged 34 years ... You will be missed my little brother.

http://www.outerlimits4x4.com/viewtopic.php?f=16&t=39190&start=150
Posts: 14
Joined: Sat Dec 29, 2007 12:24 pm
Location: Brisbane

Post by Stuart McMurtrie »

The changeover solenoids are located on the body just behind the cross member which is basically above the rear axle, and off centre to the left. There are two solenoids - one for forward fuel and the other for return.

Climb under there and feel for action on both solenoids as someone else activates the sub switch on/off/on/off.

They can physically jam from crap in the fuel or lack of use. Also electrical problems can occur - look for 12VDC on each solenoid when sub is selected.

There is a vulnerable wiring point where the cable exits the body floor pan just in front of the left hand rear wheel arch. It then heads straight toward the changeover solenoids. I have had stick damage bust a couple of wires there before.

Hope that helps.

Oh - and forget the hammer :P (in your sig)
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