ZCar Forum banner

'72 240Z Gas tank fit a '76 280Z?

654 Views 8 Replies 3 Participants Last post by  colemanerik
I found a 240Z at a local junkyard that has a gas tank and it looks similar to the one I have sitting in my living room. Will the '72 240Z gas tank fit on my '76 280Z? Id like to know before having to go with the task of pulling it off since it has no wheels and is sitting on mud. I stoped at a couple other junkyards but I couldnt find the 280Z's they say they had, not to mention most of the cars are stacked 4 or 5 high and almost totaly destroyed. I saw 2 Datsun Roadsters stacked on top of each other and folded in half. It was a sad site.
Not open for further replies.
1 - 9 of 9 Posts

if the vehicle has a build date before 6/76, the tank will physically fit. After that, they used a different, higher capacity tank with the space-saver spare and it's not really applicable to that design of rear tank holding structure.

But the small inlet will wreak havoc on the fuel pump inlet if you are EFI, as well as having to replumb the vent lines and evap lines to give you a decent "return line" for the EFI pump's flow capacity. Also, there is no sump in the 240 tank, so when going around corners or accelerating with anythin below 1/2 a tank, you run the risk of cavitating the pump momentarily as all the fuel sloshes away from the puny pickup line and the pump sucks air.

Now, if you are going with a carburetted car, it will be fine.

But the question was "will it fit" and to that the answer is, "yes, if the chassis is before 6/76.

The asker of the first question also might be interested in "will it work?", and I've gone ahead and answered that, too, just to be safe...
See less See more
Tony - thinkin' ahead and answering questions before they're asked? I don't know.... The option for those trying to make earlier (240) tanks work in EFI equipped Zs is to put a sump ring and new pick-up arm in the tank. If you go this route you might as well redo the vent lines too. This is a last resort for those with no other option but to use what they got...
thanks for answering before I asked. Heres a question you didnt answer. How do I get my current tank open? It has a seam but am unsure how it was sealed. Do I have to use a cutting torch?

I would agree "last resort"...

I'd buy it anyway, just to sell to someone who needs a good 72 tank!
What do you NEED to do?

For the most part, there is nothing you can do that requires splitting open the tank.
Most problems can be fixed through an acid wash, and internal recoating.

If tubing needs to be replaced, you can cut it out locally at the side of the tank, and replace it the same way, no need to cut the whole tank open.

The only tanks requiring opening is 240/260 tanks to install baffles, sump rings, etc etc etc...

Presonally, I would not use a TORCH on a GASOLINE CONTAINER....

My preference is to fill it with water, and cut with a die grinder and abrasive disc, until I can get a sawzall blad or jigsaw blade into there...

But like I said, there really is no reason to cut one fully open.

Good Luck.
See less See more
well there is a strip of sheet metal that goes across the width of the tank and is realy hard to get around. Also I was hoping to check out the strainer thats on the inside.
RThere is no strainer

the pipe simply goes straight into the tank.
There is no "sock strainer"

If you pull the fuel level sending uint, you will be able to see both the intake and return lines where they end in the tank.
I have that allready taken that out. MSA told me there is a strainer inside the tank.
1 - 9 of 9 Posts
Not open for further replies.