General oil cap popping off while driving

[Debbie88]

Hi All.
I hope someone can assist. I have a Uno Pacer 1400, my oil cap keeps popping off while I'm driving and the oil spills all over under my bonnet, its already happened 3 times this week, 5 litres of Oil gone. I make sure the oil cap is in tightly before I drive but it keeps happening. Can anyone advise what could be causing this?

 

[oldhammer]

Blocked breather pipe?

back preasure,
or worn fubard cap.

 

[aidanhd]

I would say blocked breather pipe as well. If you can find it, just take it off and check to see if it's clogged up. Not sure where it is on your engine as I have the 999cc FIRE. Hope this helps!

 

[Ziggy122]

Check u have the correct quantities in

Over filled and lack of breather itll easily pop off

Check as well that the oil pressure is regulated. If the control valve is jammed shut on higher revs the oil pressure will be extreme and be a possible cause


Ziggy