What's this?

[cavebloke]

I was just refitting my fuel tank and there was a strange rattling from inside. When I looked in the tank I thought I could see a bullet casing; which started me questioning my car's heritage!
When I got it out, it's clearly not a bullet casing but what is it? It's brass and has a spring and a glass bead inside it.
I'm at a loss. So I'm hoping someone on here can tell me what it is.
Cheers,

Simon

[MrMCI]

I think it's a catseye!

[TVR Beaver]

Does the glass bit move? Look like a one way valve or a bleed valve maybe. What's the inside of the turnover valve like ???

..............................

Now I can see it on a big screen.. it looks like there is a spring in there too.. its some kind of one way valve....

Edited by TVR Beaver on Monday 31st March 20:18

[cavebloke]

The glass bead is in the wide section, pressed up against the pinched end by the spring. The long thin end is empty.

[bomb]

Is a 'thing'ame-jig'.

[cavebloke]

bomb said:

Is a 'thing'ame-jig'.

Does said 'thing'ame-jig' have a purpose inside my fuel tank or did some careless muppet just drop it in there?

[gammav]

It's the end of a Jiggle Syphon

[cavebloke]

gammav said:

It's the end of a Jiggle Syphon

Genius! Nice ID!!!

[bomb]

cavebloke said:

bomb said:

Is a 'thing'ame-jig'.

Does said 'thing'ame-jig' have a purpose inside my fuel tank or did some careless muppet just drop it in there?

Looks like the 'What-cha mecallit' has come adrift from a syphon hose. Shouldn't be in there.

[Quinny]

Now you've taken it out........ Car won't run properly

[SteveSPG]

looks like a spring loaded pressure relief device, maybe an attempt to overcome tank vapour lock???

[rigga]

SteveSPG said:

looks like a spring loaded pressure relief device, maybe an attempt to overcome tank vapour lock???

Sensible answers will not be tolerated.

[Bluebottle]

cavebloke said:

gammav said:

It's the end of a Jiggle Syphon

Genius! Nice ID!!!

I've never seen one of those before...beats the taste of fuel when I'm syphoning off the fuel from the neighbours car