Putting in a new sash lock in and reversing bolt?

[Keitai]

When putting the lock in I guess it's a case of drilling it out to the right depth then chiselling the right depth of the front (forend)? How do you get both the bolt and lock lined up perfectly with the slot in the lining. (I've used the old slot.)

Is the height line the top of the lock (the foreend)?

I also needed to reverse the bolt. Stupidly didn't take a photo before starting to take it apart and cant work out how to put the spring back.

 

[HERTS P&D]

HAVE YOU TRIED READING THE INSTRUCTIONS?

Andy

 

[SFK]

Spring is in correct place.
Now get hold of the end of the spring, pull it back (to the right in your photo) about 1.5cm, and then drop it behind the yellow metal so it pushes it forward.
SFK

 

[foxhole]

Looks like you have also released all the lever springs which need returning.
Might help

 

[Keitai]

I've got a 13mm flat bit I was going to use fir the spindle hole. When I watched a YouTube video it recommended an auger bit. Is this better?

 

[foxhole]

Auger bit is easier to control but flat bit can be used as long as the spike on it does not burst out the timber near any panel.

 

[Keitai]

Hung the door although it took awhile. I was planing the sides 0.1mm a time then putting in so took ages. As I was worried to take too much off. The top of door was catching on door stop so put the hinge 1 Or 2mm over the edge to avoid this but moving doorstop would mean ages painting the whole lining