Why did my oil extraction pump not work?

[hofffam]

I changed the oil on my NSX yesterday. I planned to use my trusty extraction pump (same unit as in the DIY thread). I used the smallest tube, pushed it into the dipstick tube as far as it would go. Felt like the tube has a serpentine path to the oil pan.

Best I could get was a tiny amount of oil pickup. Ended up doing it the old way through the drain plug etc.

Is there a trick to get the pickup tube into the oil pan?

 

[Larry Bastanza]

Sounds like you may have pushed to tube in too far and it turned upward and out of the actual oil.

Regards,
LarryB

 

[GOTTSPD]

I can confirm that those oil extractors do work on the NSX (well, it works on my '92!!). I love it... Never have to take the oil drain plug out. It is slowwwww though.

 

[hofffam]

Sounds like you may have pushed to tube in too far and it turned upward and out of the actual oil.

Regards,
LarryB

I never thought of this possibility. I assumed instead that the tube simply wasn't reaching the bottom of the oil pan (even though it seemed to go a hell of a long way. I will try again in 5000 miles and not insert it so far...