[drjon4u2]

Thanks for your response! I have already adjusted the spring and centered the plunger, but the trunk will not rebound. If the plunger is adjusted to the point where the spring gets compressed, the plunger will not go deep enough to latch. If the plunger goes to the point where I cannot feel the screw end (as far as it will go without the danger of it falling out, it seems to make no difference, as there is no automatic rebound.

I'll next try to recenter the plunger with screw slot to see if its shaft impedes the action of the rebound spring.