6 replies to this topic

[Noah]

Whats the difference? Why is there two different ones?

Mines a-bit, dicky...It gets jammed . What would be fitted on a 94' Carburettor car?

[Artful Dodger]

Well. My guess is that the difference seems to be the ventilation system. One seems to have inbuilt vents and the other doesn't!


Bahahahaha

[KernowCooper]

Injected cars are normally non vented caps and carb cars are vented to stop the tank getting collasped under the vacumn of the fuel pump

[miniman retford]

My mpi original cap was a non vented but when i had to get a new one a few months ago was told they are no longer available & replaced with the vented type, not had a problem with it since fitting it.

Edited by miniman retford, 04 January 2013 - 04:15 PM.

[The Principal]

early tanks are vented with a hose through the boot floor and use the non vented caps

[tiger99]

A vented cap will most likely work on any car. The injection models may use a non-vented cap, but only so that petrol vapour is vented through a charcoal canister so it will be absorbed, not released to the environment. Not sure if that applies to cars sold in the UK, but I don't think that you would have trouble, MOT or otherwise, by venting the tank directly, as the amount of vapour emitted is quite small compared to what comes from idiotic SUVs and other grotesque modern trash.

[mattbeddow]

If your tank has a separate pipe coming off the neck of the fuel tank in the boot (or your boot stinks of petrol because the pipe is missing that goes therough the floor) then you can use either. If you dont have this pipe then you need a vented cap