Originally Posted by JW51
Couple thoughts:

1) I used some fairly aggressive concoctions to clean my YF up. I will never play with the commonly-recommend Lysol solution again. It really attacked the casting and I can tell it’s rather porous now. That probably contributed to my situation.

2) Looking at the YF, that same passage that vents to the exterior, also has an outlet to the interior. I really wonder if the exterior outlet is even necessary. But the engineers put it there, so I will leave it alone.

I've decided Dawn or Ivory dishwashing soap in an old pot on the bbq grill and a good boiling are two of the best things I've found. Probably some sort of ultrasonic cleaner might be nice, but I don't have one of those.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end