Rancilio Silvia OPV Adjustment / A Deeper Dive 

So glad it helped!

Thank you!

Yep I’ve since sealed it up some

Ain’t that the truth

Now that I've done it, it seems to pop up everywhere that I read and I wonder why I did not know before. Oh well!

I use the highly technical method of using a measuring cup that measures in milliliters.

Great point! and yes you are correct

Your video helped me repair my V2 2006 Miss Silvia. Rancilio Group had told me to purchase a new OPV. But with a cost of $100+, I went your route and now am not blowing hot air back into the tank and the shots taste much better. I should add that I cleaned all the parts within the OPV.......Thanks again. @@drinksunbear

Wow congrats that's awesome@@Hawkair66

thanks for watching!

The gauge is a great secondary way to check though it's still not completely accurate. I would say both methods can help you get to where you need.

Your pump might be worn out. Or more specifically, the ball in the valve might be worn.

Make sure your tube is not kinking as you adjust the OPV. Mine was too high and I was also getting stuck around 80 grams and it turns out the tube near the valve was twisting and restricting the flow. I pulled the tube from around the boiler and hung it over the front. I turned the tube for each turn of the OPV.

Thanks for the info! I'm pretty sure mine was 13/16 but I could be wrong

Steel teeth on brass flats. As bad as not unplugging the power, to some of us.

Yep you got it sounds like

watch my other video at about the 5:00 mark. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wuHcviD6R1M.html Sorry I don't want to tell you wrong off the top of my head

Pretty sure it's counter clockwise for less bars of pressure and right if you need more pressure. Mine had too much and I dialed it back by going counter clockwise with the OPV

I was trying to move away from bars of pressure as I don’t have a gauge to measure that so in 30 seconds the scale not d 94 grams of water in the beaker resting on the scale. I need to have approximately 120 grams of water in that 30 second period of time so…..loosening the lock nut on the OPV I would turn the outer valve nut counter clockwise to increase the flow of water to fill the beaker to 120 grams in 30 seconds?

I found the graph. This should help www.pidsilvia.com/Ulka%20Water%20Pump%20Pressure.htm

Not completely sure. It's a Miss Silvia if that helps

Vance, he has the V6 Silvia with an adjustable OPV. If you have a V1, your OPV is fixed and not adjustable, but it can be modified to produce lower pressure.

@@drinksunbear I have a V2 0108 build and mine is adjustable...assume therefore V3 should have it

I don't have the machine anymore so not really able to check

Hey man, I'm not really sure I can really only speak with experience about the newer models

I would trust the 130cc from OPV method more

I also have a V3 and was at about 140 cc (or gr - same). Was having trouble with little output. Adjusted as per Sun Bear's instructions to 130 and SO MUCH BETTER now. THANKS!

so glad it worked for you man

Old Indian saying: "When you strike together imaginary flints, You create only the illusion of fire." Neither is brew head pressure.

Mine does not leak while I do this. When I used the pressure gauge originally it did so I sealed it up with some plumbers tape

Great point

I think it's leaking around the group head seal, probably because it doesn't have the basket in it. TBH that was not an accurate way of measuring the pressure, the portafilter needs to be completely filled with water to be accurate, any air in there will give a low reading because the air will compress.

Yes they came blazing for sure

sorry I'm having a hard time finding a link. Any one should be fine that will screw into your current portafilter. I ended up putting some plumbing tape on mine to keep it from leaking and seal it up better

Espresso Parts in Seattle $35, Sometimes eBay but really should have their calibration checked and threads inspected before use.

www.ebay.com/itm/362557281044?hash=item546a191314:g:2KIAAOSwYyVcZXo~

The one sold by Espresso Parts in Seattle is cheaply made, and if you tighten it too much it will break (I've been there, so I know). Much better to make your own. Purchase a manometer that measures 0- 20 bars and is silicone filled. Then it's just a case of finding the correct female "sleeve". Note that the Rancilio portafilter has a male BPS (British Pipe Standard) 3/8" thread. Manometers for this application almost always have 1/4" threads. So the connector sleeve that you purchase should have a 1/4" female BPS thread on one end, and a 3/8" BPS female thread on the other end. My total expenses for the manometer and the sleeve were less than USD40.

Haha thanks man, you are the first person to ever comment and I'm always suprised! The Mats are the best band ever in my opinion

Cool that you figured out how to do that! I'm not that savvy

After I did this video I added some plumbers tape to my threads and it sealed up perfectly

@@drinksunbear thank you mate both your video are extremely helpful ! I finally got my 9bar!

@@ycming so glad it helped man! Just figuring things out as I go like everyone else

Yes love it

What are your other machines?