Can this valve line be plugged to get back on the road?

How long can that 'fix' be used?

Vehicle is a 2.4L 4 cyl. Mitsubishi Galant.

It would have to be repaired/replaced, but is this resonable as a temp fix?

If you take the time it takes, it takes less time.
--Pat Parelli

American by birth; Alaskan by choice.
--ironbender