Posted Fri Mar 28, 2014, 11:31am Subject: Recommended Group Gasket and Screen for Expobar Office Pulser "E61-style"
I picked up a used Expobar Office Pulser and the group gasket was definitely never replaced. It's not yet cracking but it's hard as a rock and I get a small amount of leaking when I backflush. I'de like to replace the gasket and perhaps the screen while I'm at it before the gasket actually does start cracking. I'm finding a bunch of mixed info on which gasket fits best, although most sources say that a 8mm thick e61 gasket works best. Apparently it is the inner diameter of the gasket that gives expobar office users some trouble. EspressoParts sells a gasket-screen kit for e-61 but makes specific reference to the inner diameter perhaps being a problem with certain machines. However, the same disclaimer is made on the standard gasket alone on their website...This is confusing because I thought that if I was replacing the gasket and screen, the inner diameter of the gasket would obviously not be a problem since it's being sold with the screen. This will be my first time replacing an e-61 gasket but I was pretty sure it just fit around the screen (the two being sold together would match up). Is their disclaimer a non-issue since I'm replacing the screen at the same time?
The same disclaimer is made on their gasket sold alone. They provide a link in the disclaimer for another that will apparently fit better (they say its a softer material) http://www.espressoparts.com/F_59
Posted Mon Mar 31, 2014, 10:50am Subject: Re: Recommended Group Gasket and Screen for Expobar Office Pulser "E61-style"
I ended up ordering a Cafelat 8mm silicon group gasket...3 bucks plus $3 for shipping. It's ludicrous that WLL is charging $12 for an "expobar" gasket. I have no problem with WLL as a company (i've bought from them and continue to do so), but come on!
Posted Tue Apr 15, 2014, 8:12pm Subject: Re: Recommended Group Gasket and Screen for Expobar Office Pulser "E61-style"
If anyone should search for this info in the future:
The e-61 8mm (red) Cafelat silicon gasket installed easily and after one day of use, is great. The relatively soft silicon made sliding it over over the screen a breeze. Definitely do not get the 8.5mm, as the 8mm is relatively snug compared to the old worn out gasket that was on it. With the beat up gasket I was locking into the 6 o'clock position with the stock PF and with the 8mm Cafelat it is more like the 7 o'clock with a beefy twist to get it locked in. Initially I wasn't locking it in so snuggly bc I wasn't used to using much force with the old gasket in place, so I had some leaking during the first shots. Once I figured out that I had to generate a little (not excessive by any means) force to get the PF seated properly there was no leaking, even with a blank backflush disk.
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