Bubbling in fuel tank

Ian H

Ian H

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Messages
167
Finally got the 3200 running again today.
Parked up after motorway blast and while sitting stationary in the car I could hear fluid bubbling/circulating in the fuel tank.
No leaks into boot. I opened the filler cap and it vented some high pressure vapour and then the noise stopped.
Has anyone else experienced this? Presumably the tank should vent somewhere or is there a non return valve which just allows air to be drawn in?
Any thoughts greatly appreciated
Ian
 
I have had the same thing happen on hot days in my 4200. The tank vents thru the vapour canister, that may need replacing
 
Yep carbon canister should be changed every 4 years on a GT/QP so I suspect your is ancient.

check the weight of new vs old when you do it.
 
Hmm I do swap the canister annually but this year the Quick joint clip on the union on the top started to leak so I replaced with new hose and jubilee
are they directional - maybe I put it in upside down?
 
The canister has an in and an out. Not sure that you could get it wrong. There’s also a valve in the vac line that’s electrically controlled. Might be worth checking.
 
It’s 3 pipes on the canister from memory, 2 large and a small

the large must be in and out and I can’t see it making a difference if you did put them on the wrong way round as it’s a box full of carbon balls. The small must be some sort of vent to atmos.

Suppose it could be conceivable that it’s one way valves but unlikely
 
They’ll be a baffle or something to stop liquid fuel getting into the inlet but I’m not sure Ian H is talking about the carbon can now. I think he might be talking about the fuel filter. I don’t remember quick release joints on the carbon can and you couldn’t put it in upside down.

Carbon canister from my 3200, in the wheel arch.90492
 
Hi chaps
Sorry have been mixing things. I was indeed talking about the fuel filter in the boot (34 in diag.) which I think is a complete red herring.
The vapour canister (36 in diag.) is a whole new discovery / can of worms :)
Sounds like I need to dig mine out from under the wheel well and change - is it front passenger side?
Is the solenoid valve (35 in diag.) located adjacent to the canister or hidden elsewhere?

Eurospares have a canister kit for £1200 w.t.*** Fortunately they do just the canister and valve for ~£20 each stock permitting.

90516
 
Ok so of course Maserati don't make the canister any more :(
It is a Fiat part # 46408670 - great.
But of course Fiat don't make the part any more.
Found a new old stock on e bay.
Thanks everyone for the help
 
Ian H said:
Ok so of course Maserati don't make the canister any more :(
It is a Fiat part # 46408670 - great.
But of course Fiat don't make the part any more.
Found a new old stock on e bay.
Thanks everyone for the help
Click to expand...
Buy another and stick it in the garage !
 
Is there a way into these canisters? If is only carbon balls, activated carbon is dirt cheap.
 
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