Convert a door that has a mortise type lock set installed to the newer and cheaper cylinder type lock sets.
How to change a mortise door lock.
There are certainly modern mortise locks which accept pin tumbler cylinders.
Use a screwdriver to.
Step 2 mark lock position and outline.
You ll see that on the narrow part of the door there is a plate that goes over the lock cylinder.
Since you are going to do a lot of hammering and drilling ensuring.
You will undoubtedly have to drill for the cylinders.
Use extreme caution not to cross thread the cylinder as this may ruin the entire lock.
Paint over the block to match the rest of the doorjamb.
With the screws out carefully prise out the lock.
Step by step instruction to install a mortise lock.
Use a table saw and miter to cut.
Measure the depth width and height of the lock mortise.
Hopefully helpful when rehabbing old houses.
How to replace a mortise lock with a cylindrical lock.
You may need to enlarge the mortise.
You may need to drill new knob latch holes as well though decorative brass or chrome plates can hide a multitude of sins.
Place two screws from your new door lock kit in the doorjamb to hold the template in place then use the bit from your lock installation kit to drill a hole where the new doorknob will go.
Open the door that you want to change the lock cylinder on.
5 carefully thread the new cylinder into the body of the mortise lock.
Remove the screws attaching the inside face plate to the edge of the door as well as the plates on the door faces.
Step 1 steady door.
Unscrew the lock cylinder from the body of the mortise lock by turning it counterclockwise to the left.
You ll usually find there s a metal cover screwed to the mortice lock which will come away as you unscrew with some more screws underneath holding the actual lock in place.
Whether any of them will fit in your existing mortise is another question.
First you need to make sure the door stays steady.