Hi all,
My Oscar is now about 16 months old and I am very pleased with it, fitted with anti-vac valve which works well, as I run it on a timer, otherwise original.
After the year-end festivities with lots of visitors I have found that the portafilter has become very tight to turn into the group head. IIRC it used to turn to almost 6 oclock position, but now I can get it to about 7 oclock only with a very heavy heave, which doesnt make for a lot of engagement of the lugs, they go in at about 8 oclock. The only change I can see may be relevant is that I have been swapping between single and double baskets because of needs/desires of visitors, but I cant see any build up of material around the filter mount, or under the filter lip and it has the same problem with either the standard handle or a bottomless portafilter. Ive tried putting a bit of food-grade grease on the lugs, without benefit.
I thought the seal must have hardened, so replaced it, but no appreciable difference. There was no great amount of coffee residue under the seal.
Only effect other than worrying that Ill bend the handle or have it fall out of the group is that Im using 0.5+ gram more coffee to give a dry puck.
Id be grateful for any thoughts about the problem.
Regards to all
Russell
My Oscar is now about 16 months old and I am very pleased with it, fitted with anti-vac valve which works well, as I run it on a timer, otherwise original.
After the year-end festivities with lots of visitors I have found that the portafilter has become very tight to turn into the group head. IIRC it used to turn to almost 6 oclock position, but now I can get it to about 7 oclock only with a very heavy heave, which doesnt make for a lot of engagement of the lugs, they go in at about 8 oclock. The only change I can see may be relevant is that I have been swapping between single and double baskets because of needs/desires of visitors, but I cant see any build up of material around the filter mount, or under the filter lip and it has the same problem with either the standard handle or a bottomless portafilter. Ive tried putting a bit of food-grade grease on the lugs, without benefit.
I thought the seal must have hardened, so replaced it, but no appreciable difference. There was no great amount of coffee residue under the seal.
Only effect other than worrying that Ill bend the handle or have it fall out of the group is that Im using 0.5+ gram more coffee to give a dry puck.
Id be grateful for any thoughts about the problem.
Regards to all
Russell

Comment