RB fuel tank venting

[hardingfv32]

RB is stating that their fuel issue was a buildup of vacuum in the fuel tank/cell. Nothing stated about a vent system failure.

Why would the tank/cell not be vented to atmosphere with the appropriate check valves?

Brian

[Just_a_fan]

And why could this question not be asked in the RB18 thread?

[jagunx51]

this could happen on other cars too, so, this should be a general engine topic .... perhaps the thread subject need to be edited (?)

[vorticism]

RB is stating that their fuel issue was a buildup of vacuum in the fuel tank/cell. Nothing stated about a vent system failure.

Why would the tank/cell not be vented to atmosphere with the appropriate check valves?

Brian

If it is the tank, then you have to wonder why something as relatively simple and proven as a check valve would fail.