Hydraulic lifter stuck

[Banana Shark Dave]

Hi Guys

Yes that poxy Atlas lifter is playing up already lol

Ok it was working fine last week, has been sat in the Drystack. Went to use it tonight after a pretty rough run back from Cowes, Fell down some big holes.

The lifter is making a constant noise like it is working but considerably quieter and it's not lifting.

Looking at the lifter it looks like it has gone lower that it's ever gone before. It normally shows on the measuring guide on the side 1/2", at the moment it is on 0

Any ideas anyone????

Thanks :--)