Not really a problem as such - just curious.

 

I noticed on my skyline too, that when you pop the petrol cap off it draws air into the tank as if there is a pretty substantial vacuum. Now I'm guessing its either because the tank is so air-tight that its simply the fuel being pumped out that creates the vacuum and/or changes in temp and atmospheric pressure. But It did strike me as odd that its possible to create such a strong vacuum. I also realise that there's a system that collects the tank fumes and feeds them back into the system, but wasn't sure if it was this or the afore mentioned reasons.

 

Do all nissans of this era do this?

 

cheers

my 200sx used to and so did my 300, both had the carbon canister deleted

Mine was the same mate and my supra.

So its not just a Nissan thing then?

 

Just weird that none of my previous cars sounded like they'd been holding their breath til i got to the petrol station!

mine does it to mate :)

It must be air tight and with the pump sucking away it creates that vacuum when you open the fuel cap. Leo you about Sunday?

It must be air tight and with the pump sucking away it creates that vacuum when you open the fuel cap. Leo you about Sunday?

 

Should be - you thinkin of headin over bassetts pole?

 

cheers

Should be - you thinkin of headin over bassetts pole?

 

cheers

 

Yes mate i will be on a bike proberley.

OK - I'll PM you closer the time..

 

See you there - please don't offer me a ride on your bike. I've seen your driving... LOL

 

cheers bud