sliding door help needed

[T3BUS]

Got a twin-slider and the doors seem to have dropped over the years. The offside seems worse so that the shut lines are about a cm out. Is this wear in the rollers or something else I`m missing? If it is just a matter of replacing them, (it seems there are quite a few to replace) and if this IS the problem, any suggestions on where to get them from would be gratefully received.

[Plasticman]

The rollers don't wear that much ,um busy now but can help later if you can post up some pickies it would help ,also Kate or early doors
mm

[T3BUS]

Hi and thanks for taking the time to offer your help. I`ve added a few external photos that show where the door is rubbing off paint as it catches when closing. Internally, the door seems to have been adjusted as high as it will go so any advice gratefully received.
Thanks

[Plasticman]

early or late doors ?
can you take a picky of the area on the B post where the front of the doors locate
now if you open the door a foot, how much can you lift it by
with the doot still open a foot go to the rear and carefully see if and how much you can lift it by
mm

[Plasticman]

oh and also need to see the gaps at front and rear
mm

[T3BUS]

Ill post those pictures later tonight - meantime have you any thoughts on why?

[multisi]

Looks like late doors from the photo of the handle recess ( small ).

[T3BUS]

It`s a 1990 van from memory (on a J plate due to DVLA mix -up) It`s a re registered MOD vehicle.
Anyway, photos show small flakes of metal where the door catches and when open about a foot, the door can be lifted approximately 12mm and a few mm more than this when sat about a foot from closing.

[Plasticman]

1/2" supprised it hasnt disengaged with the top guide.
if you open it and get down can you see the lower roller turning?
look where the top roller or nylon block is in the guide, there must be loads of room above it ?
if you look at the lower roller assembly, look at the 3 screws securing it,they are elongated slots, is there a nice bit of the slot visible under the bolts/cap heads ? if not then loosen the upper one and just nip back up , then loosen the other 2 and leave loose , now take the weight with one hand (or trolley jack and padding) and then slacken the one you just nipped and simply move the bracket down (door up) and nip up , remove jack , you must still have a very small ire couple of mm lift . then try slowly closing the door checking alignment etc
let us know how you get on and maybe a picky of lower assembly prior and also top bearing
sorry a bit drawn out bu easier to do than write and describe
mm

[T3BUS]

Thanks mm, I`ll have to leave it until the wknd now but I`ll let you know how I get on. Cheers