The early design depended on the cap and seal to be correctly seated and in perfect condition or else oil will escape.
Try removing the cap with the engine running......make sure you have goggles and a towel because the cam will throw oil as fast as you can wipe it off......between that and the positive/negative pressure that 4 bangers create (2 pistons rising, 2 pistons falling with two experiencing blow by) quite a oil storm will erupt.
The baffled extension that was installed for the 2014 model year keeps the raw oil spray from directly hitting the cap base, but if removed while running, it will still blow raw oil out since you created a blow by escape path.
Might help with your project though.
Rob
Try removing the cap with the engine running......make sure you have goggles and a towel because the cam will throw oil as fast as you can wipe it off......between that and the positive/negative pressure that 4 bangers create (2 pistons rising, 2 pistons falling with two experiencing blow by) quite a oil storm will erupt.
The baffled extension that was installed for the 2014 model year keeps the raw oil spray from directly hitting the cap base, but if removed while running, it will still blow raw oil out since you created a blow by escape path.
Might help with your project though.
Rob