La Marzocco GS3 - Dispersion Screen Is Loose
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- Posts: 38
- Joined: 9 years ago
I just changed the group head gasket and cleaned the dispersion screen. When I reinstalled the screen, the screw is tight but the screen is still loose. Thoughts?
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- Supporter ♡
- Posts: 35
- Joined: 18 years ago
Happened to me, too! It was with the IMS screen just a few months old. Wasn't sure if it harmed the shots or not so just replaced it.
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- Posts: 38
- Joined: 9 years ago
1. Took off gasket.
2. Took off screen.
3. Put on gasket.
4. Put on screen.
Reversing 3 & 4 may do the trick if gasket is providing friction. I replaced an 8/9 mm gasket with a 6/7 mm which could be the problem. However, I thought the two were independent.
2. Took off screen.
3. Put on gasket.
4. Put on screen.
Reversing 3 & 4 may do the trick if gasket is providing friction. I replaced an 8/9 mm gasket with a 6/7 mm which could be the problem. However, I thought the two were independent.
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- Posts: 38
- Joined: 9 years ago
The problem was the thinner gasket. I put a new thicker one on, and it worked. There is an inner raised ridge that the screen seats against.
I don't like the thicker gasket, portafilter is at about 7:30 fully locked. There may be a different screen design I can try. I have a silicone gasket on order. Ppl who use them like them better than rubber. I would like the portafilter around 6:00 if possible.
I don't like the thicker gasket, portafilter is at about 7:30 fully locked. There may be a different screen design I can try. I have a silicone gasket on order. Ppl who use them like them better than rubber. I would like the portafilter around 6:00 if possible.
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- Posts: 148
- Joined: 10 years ago
If you really want it to be at 6 I think its possible to file down the portafilter ears so that it fits?
- uscfroadie
- Supporter ♡
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- Joined: 16 years ago
A better option for modifying your portafilter, if you absolutely MUST have it at 6 o'clock, is to remove the basket and sand the top lip; allows the basket to sit deeper in the portafilter. Very easy to do - just lay it face down on a flat surface with 1,000 grit sandpaper. Rub the portafilter (basket removed) in a figure 8 pattern, checking your fit along the way. Keep in mind that this is non-reversable.
Your other option is to just use the machine and portafilter as it was designed from the factory. It's not as if the portafilter backs out at 7 o'clock position.
Your other option is to just use the machine and portafilter as it was designed from the factory. It's not as if the portafilter backs out at 7 o'clock position.
Merle
- danetrainer
- Posts: 730
- Joined: 16 years ago
There are two sizes of group gaskets available, the LM have a conical shape and I believe the sizing is 6/8 & 7/9, if I remember correctly.
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- Posts: 148
- Joined: 10 years ago
Sounds like a good idea! It did bug me for awhile when the machine was new but now that I've gotten used to it I don't really care that much anymore...uscfroadie wrote:A better option for modifying your portafilter, if you absolutely MUST have it at 6 o'clock, is to remove the basket and sand the top lip; allows the basket to sit deeper in the portafilter. Very easy to do - just lay it face down on a flat surface with 1,000 grit sandpaper. Rub the portafilter (basket removed) in a figure 8 pattern, checking your fit along the way. Keep in mind that this is non-reversable.
Your other option is to just use the machine and portafilter as it was designed from the factory. It's not as if the portafilter backs out at 7 o'clock position.
Also, it is less of a problem when I'm using the naked portafilter since you don't have the spouts being not parallel with the machine.