'73 240Z petrol Tank???! HELP!!!!!

[Mudpi]

Howdy all,

I've just got myself a lovely little '73 240z as far as I can see it's doing well, mechanicaly its A1 and the body is near perfect.

BUT after some mild tearing around I noticed that there's a small petrol leak, on the same side as the cap, that only shows up when the car is Jerked around. (tank was exactly half full)

I was wondering - worst case senario - if I need to replace the tank, is it inter-changeable with other Z models (260z etc).

(In Australia BTW)

Thanks

R:tapemouth

[Daniel]

The filler neck,which is the part between your tank and petrol cap is rubber.That would be my first guess.It may be torn or the clamp loose.There are also two hoses on top of the tank that go to the expansion tank(air vent).I would think your leak is due to rotten rubber/loose clamp.If it is the tank it can be easily repaired."No worries"

[Mudpi]

Ahhhh

Thanks man, I'll have a look in a couple of days and check it out.

I think it's going to take a while to get a handle on 240 (what with me being useless with cars and all) but, geez I love it!

Thanks

[2ManyZs]

In case of the worst, yes the tanks should interchange. I believe the tank will interchange with any Z up to a 280z but not the 77 or 78 models. Anything up to 76 should work.

But since it only leaks when it is over half full it will probably be either a vent hose or filler hose. Be sure to check them all carefully, if you have to change one you may need to change the others as they all get hard and brittle. The worst thing that can happen is the long one that goes to the drivers side rear of tank will leak sometimes onto the exhaust or close to it, this happened to me as I filled up once, it is not something I want to have happen again.You can change all of the hose without dropping the tank out all the way, just loosed the straps and let it down as far as you can without taking the straps loose but be sure to have the tank as close to empty as possible, or use the drain and drain it completely.