Here is how the latching mechanism should work.

door latch operation

I don't see how the inside locking mechanism can not lock unless the mechanism is not going into the latched position. Refer to the 'door open' picture at the above link.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.