The Triumph Dolomite Club - Discussion Forum

My drivers side door lock will not stay locked , after i lock the door with the key i can still open it via the outside door handle, ( black pin moves down still ) any ideas before i remove the door card and take a look ? .

From the dolomite parts catalogue.

Door card off and nothing broken and all clips in place, Wd40 next to see if that helps

mahony wrote: ↑Mon Jun 08, 2020 10:45 am Door card off and nothing broken and all clips in place, Wd40 next to see if that helps

Be careful with WD-40, it isn't really designed as lubricant, it is as the name suggests a water displacer and cleaner. The fact it lubricates is more of a side effect.

So it will work sort term but it won't persist and you will be back to square one. I know from locks they generally use a dry lubricant, something like graphite, to stop crud building up.

Gonna clean with Wd40 and then find a suitable lubricant
if the Wd40 works

What needs lubrication is the area around the two overlapping plates with a crescent shaped hole...

Lubricated ( including overlapping plates ) and still no good, swapped for another lock and all good , thanks for all your replies