Diesel Long Range Tank Into A Petrol Jackaroo

muc the truck

Well-Known Member
Most of you are aware there are an abundant of dead 4jx1 powered jackaroo . most of them find them selves in the wreckers . But most people would not touch a 4jx1 with a 40 foot barge pole so we found that the fuel tanks are cheap . We paid 100 dollars for a 135 litre long range tank and converted it for petrol in a couple of hours.
I filled the tank with water then
I drilled a 76mm hole over the top of the outlet and the return line. tossed a magnet in the tank to catch filings
Then used the pump gasket as a template to make two c shaped bolt retailers as the normal petrol tank has threads for bolts to screw . This way the nuts are on the out side . drill holes in tank for . tossed a magnet in the tank to catch filings. and shook the tank with water in it for ages. pulled out the magnet cleaned it and tossed it back in and left it there.

now the diesel tank is 5mm too short at the pump pick up. so I removed the pump, cut 5 mm from the hose that's submerged in the tank, cut 5mm out of the submerged part of the fuel pump bracket and welded it . now the pump pick up sits on the bottom with out bottoming out. if you see the weld on the fuel pump bracket you will understand.

almost time to assemble . final rinse with high pressure hose with magnet to catch metal . blow out tank with air until dry. add metho. swish tank around . drain metho from tank . install c shaped retainers with threads facing up . used rubber fuel pump gasket to hold them in , added pump , added bolts and locktighted threads torqued them to 4nm like wheel nuts. then to 8nm. liberally sprayed the top of the pump with CRC SOFT SEAL fitted tank , filled tank , wired pump and plumbed hoses. turn key. now cost over 200 dollars to fill the tank.
 

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80lover96gxl

Moderator
Nice job muc, great cheap long rang tank.
How long to do from start to fill up ?:)

Sent from my GT-I9505 using Tapatalk 2
 

muc the truck

Well-Known Member
Nice job muc, great cheap long rang tank.
How long to do from start to fill up ?:)

Sent from my GT-I9505 using Tapatalk 2
Its for a mate but he says he gets 16lts per 100 so should be good for 800kms .
His rig is heavy with camping gear . He has not emptied it yet nore filled it right up lol

all up with out a hoist in my drive way it was in and out in about 5 hours , that's counting the time to make the c shaped retainer with the bolts welded to it.
 
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