Valve Clearance problems?

[Braad]

Had the head gasket and cambelt changed last week for the sale of my Glanza. The car fired up first time and ran fine on a test drive however later on it had developed a clatter almost identical to the one in this video :

It doesn't always do it, and only after it's warmed up.

Am I right in thinking it's a lifter/valve clearance? It's coming from the top right of the rocker. (The buckets and shims would of been out for the re-skim)

Obviously I've got the car up forsale but i'd like to try and resolve this.

Any help would be great,

Thanks

[rorenapier]

Were the shims put in where thery came out of? Did whoever do the headgasket check them?

Where is the noise coming from?

[nastyrash 2003]

yep this is a comon problem fella check valve clearance (wen hot), also i have found the gear on the exhaust cam coms in to sepert parts the front part moves about a inch and a half in both directions, thr should be a mark on it wer it is set to from the factory, a white almost tip ex mark. if you can not find the mark turn the outer gear all the way anti clock till u cant turn it no more but the teeth line up. hope this helps if u can not get the info on valve clearence i have it at my garage on the pc.