Forum:
ok well this petrol send has done my head in, the only thing i disturbed is when ive been moving the tank about so i reckin it may be stuck inside, ie the float may not be going up and down.
the wire basically goes from the sender unit to a plug under the rea tow bar. i have replaced all wiring here and it still isnt registering, even with a tenners worth in it. the temp gauge is working fine.
the screws are rusted fast to the top of the tank, im soaking them in wd40 tonight. a few questions:
can i get a new unit from daihatsu?
how can i get the screws off if they refuse to move?
after all that has anyone got a spare tank kicking about and an average price for one?
cheers again, this is the only thing preventing me from getting her on the road 
pw
PETROL TANK
Hi Paul
After all your work this seems a mean end to what was a hard job. I wonder if you ran it for a while with some more fuel in it the float may free itself. I think you will struggle with getting those screws out and of course you will have to be careful if drilling by removing all the fuel and refilling with water to reduce any chance of an accident.
I must admit it would annoy me and I would have to find a way and the only result may be a tank from a scrap vehicle.
Have you tested the guage. Usually if you short one of the the wires to earth it wil pop up to full. It could be a coincidence though I doubt it but as it was working then I can't really see how droping the tank out and replacing it would make it fail. As you say it could just be a sticky float and driving about may jolt it free, worth a try rather than risking those screws.
Why Daihatsu use soft headed screws in obvious corrosive areas beats me but they do and I have just changed the lights on a hijet and the same problem corroded rubbish screws in direct contact with all the elements. All had to be drilled out and re cut oversize, a half hour jobs turns into an afternoon.
Good luck and be carefull
OLDMINIMAN
Mike
M J Young
thats good advice like, i
thats good advice like, i spoke to my dad ( a restorer of commercial vehicles - ford thames, trojan, bedford 9 ton etc) and his advice was to drain the petrol, connect the tank up and turn it upside down to see if it frees the float.
its deffo not the gauge as ive had it removed and the temp gauge is the same unit, and it works fine.
shouldnt be hard to completely remove the tank again but when i put the tank on i dont want to know that niggly thing is the one think i couldnt fix. i do remember hearing a plastic stick sound rattling about when i removed the tank. i cant hear this now leading me to believe its stuck.
i think ill take your advice and just fit the tank, and just carry a gallon of petrol in the boot for a bit. hopefully after a few quick trips it may free things up..
if not its off with the tank and try the wiggle and hope technique!
cheers mate ill let you know how it goes.
PM me if you need Sportrak Help..
My fun machine apart from
My fun machine apart from the Sporty is a 31 year-old aircooled Yamaha RD250C which, when bought, had more than it fair share of problems with totally corroded bolts, and since then I have devised an effective method of removing seized-beyond-belief cheap fasteners. I dont even bother to attempt to remove if it will not go after a few goes...Just grind the head off, then start with a small, say 2.5 mm drill (hss) on high speed, progressively increasing in size until just under the size of the bolt. Use a coolant if poss. Then, the rest just falls or can be poked out out or you can re-tap - the cheapo alloy those bolts are made of makes it quite an easy task.
Dave with a Sporty
Dave with a Sporty