Noisy Pump over time?
Noisy Pump over time?
So after two months of golden rotary pump silence, my pump makes as much noise as my Francis X1. What could this be and how do I make it stop?
Carl B
Carl B
Did you change anything? Such as shutting off the water for some reason and then turning it back on, things can get lodged in the plumbing and cause a restriction after the regulator. These are very temperamental machines, like Italian sports cars, any little thing can wreak havoc in their little pipelines. Mine changed behavior just by shutting the water off to check the filters, after turning the water back on - the unit sounded different for a couple of days. It probably had air in the system.
Niko,
I know that I did nothing to change the water flow prior to reporting it here and then trying to monkey with it to make it better.
Chas,
It drops like 8 PSI when the pump is on. I did manage to twist the knob on the regulator and increased the pressure a bit.
I verified that everything is operational in terms of the plumbing. I will drain the system and see if there is any air in the system.
CarlB
I know that I did nothing to change the water flow prior to reporting it here and then trying to monkey with it to make it better.
Chas,
It drops like 8 PSI when the pump is on. I did manage to twist the knob on the regulator and increased the pressure a bit.
I verified that everything is operational in terms of the plumbing. I will drain the system and see if there is any air in the system.
CarlB
UGH!!! So I still have a rotary pump that is louder than my old FrancisFrancis X1.
I did talk to a tech at Chris's a while back he said the lead cause is a drop in pressure to the machine that can cause that. Well I took out everything that could constrict it, inculding running it with no filters (was only temporary) or pressure regulator (still have that off).
Is the pump bad or can I do something to adjust for it? I am still making great coffee every day with it though...
Thanks,
Carl B
I did talk to a tech at Chris's a while back he said the lead cause is a drop in pressure to the machine that can cause that. Well I took out everything that could constrict it, inculding running it with no filters (was only temporary) or pressure regulator (still have that off).
Is the pump bad or can I do something to adjust for it? I am still making great coffee every day with it though...
Thanks,
Carl B
Mine starts to get louder sometimes because of a loose panel or drip tray not fastened all the way in. Any little loose thing can cause this, it can also be the bracket that the capacitor is mounted on - sometimes this can get loose and make the machine seem really noisy. My cups rattle sometimes when they're too close together, I'm telling you the sounds are endless.
I noticed my water pressure wavers up and down, sometimes I have to make an adjustment to reduce it when the machine starts to drip more from the expansion valve more frequently and sometimes I crank it open all the way. Right now I have the regulator cranked all the way open because the pump was kind of buzzing slightly, I get paranoid with every little sound the S1 makes so I keep a very close eye and ear on everything.
Can you shoot some video of your machine in action so maybe we can determine what it is?
I noticed my water pressure wavers up and down, sometimes I have to make an adjustment to reduce it when the machine starts to drip more from the expansion valve more frequently and sometimes I crank it open all the way. Right now I have the regulator cranked all the way open because the pump was kind of buzzing slightly, I get paranoid with every little sound the S1 makes so I keep a very close eye and ear on everything.
Can you shoot some video of your machine in action so maybe we can determine what it is?
Mine suddenly got very noisy and I traced it down to the capacitor bracket. The bolt came loose and allowed the capacitor to swivel down and touch the motor, causing quite a loud noise. More description here:dc_ch wrote:UGH!!! So I still have a rotary pump that is louder than my old FrancisFrancis X1.
Carl B
http://www.rimpo.org/wforum/viewtopic.php?t=347
...Scott
OK that will give me something to look for. Something that simple would be a godsend....
So if I am reading the other posing correctly, I can see this by just removing the front panel? Did you use any loctite or lock washer to keep it from backing out again? Or just good ol german torque rules "gut n tight"?
Carl B
So if I am reading the other posing correctly, I can see this by just removing the front panel? Did you use any loctite or lock washer to keep it from backing out again? Or just good ol german torque rules "gut n tight"?
Carl B
Yes - just remove the front panel, the bracket is attached to the front of the motor and should suspend the capacitor directly above the motor. In my case, the capacitor was "laying" on the motor. I just rotated the capacitor up where it should be, and tightened the bracket bolt. If it comes loose again, I'll take stronger measures (lock washer, loctite, etc.) but so far it has stayed put.dc_ch wrote:So if I am reading the other posing correctly, I can see this by just removing the front panel? Did you use any loctite or lock washer to keep it from backing out again?
That's sort of the whole point... to make it harder to remove, so it doesn't loosen from vibration. Properly applied, a true thread locker compound will prevent vibration loosening but not prevent removal. But so far after I tightened it up, it has stayed put without any help -- so I ain't gonna fix it unless it breaks. :-)Niko wrote:I would not use a thread locker of any type on that part. Just in case you ever need to change the capacitor, it would make it harder to remove it.
Yeah, you make a valid point.
Only reason I said don't use thread locker is because I know someone with an S1 that needs to replace his capacitor. He'd be screwed (no pun intended) if there was thread lock on it. But hey, if it stops it from moving - I'm all for it. I think it's extremely rare that the capacitor needs replacing anyway.
Only reason I said don't use thread locker is because I know someone with an S1 that needs to replace his capacitor. He'd be screwed (no pun intended) if there was thread lock on it. But hey, if it stops it from moving - I'm all for it. I think it's extremely rare that the capacitor needs replacing anyway.
Uh, NO he wouldn't. The proper thread locker will NOT prevent removal. It fills the threads and dampens vibration to prevent vibration loosening, but remains pliable so the fastener can still be removed. Loctite 222 and 242 for example are specifically designed to allow future removal.Niko wrote:Only reason I said don't use thread locker is because I know someone with an S1 that needs to replace his capacitor. He'd be screwed (no pun intended) if there was thread lock on it.
There are also permanent thread lockers -- like Loctite 270, 272, etc -- that will harden and not allow removal. Obviously, those should not be used on something you might have to take apart later.
Unless he uses the same stuff LaSpaz uses on the handles...that stuff is damn near impossible to remove. When I twisted mine off, I thought I was going to bust handles they were sealed in there that GOOD.
You're right, different strength thread lockers are color-coded, I use the Blue stuff on my things and I haven't tried to remove those yet.
You're right, different strength thread lockers are color-coded, I use the Blue stuff on my things and I haven't tried to remove those yet.
With Loctite brand, the bottles are red -- the liquid is blue for the removable line, and red for the permanent line. Both lines come in a variety of formulations with varying strengths, heat resistance, solvent resistence, etc.Niko wrote:If I recall correctly, the Blue stuff is supposed to have 150lb locking strength. The Red I'm not sure about, maybe that's a stronger version. I'll have to read the bottle when I get home.
Chas wrote: What's the pressure difference when the S1 is running versus when it is not running?dc_ch wrote:hmmm I will check it out, but I know the pressure gage on my regulator shows 24PSI.
Thanks Chas
Carl
CarlB,dc_ch wrote: Chas,
It drops like 8 PSI when the pump is on. I did manage to twist the knob on the regulator and increased the pressure a bit.
CarlB
If I run my machine at 16 psi it gets noisy too. Although you did raise it up a bit but you're still having the problems? So what did you discover last weekend?
Niko
That's your group pressure adjustment.
By the looks of your manometer, looks like your incoming water pressure is in the stratosphere...not sure but that can be a partial cause to your noisy pump. I know the machine will operate at higher pressures but it doesn't mean it'll be really smooth.
Also, what kind of countertop is your S1 sitting on?
By the looks of your manometer, looks like your incoming water pressure is in the stratosphere...not sure but that can be a partial cause to your noisy pump. I know the machine will operate at higher pressures but it doesn't mean it'll be really smooth.
Also, what kind of countertop is your S1 sitting on?
Oh, OK...depending on what kind of countertop, the S1 can be noisy. Concrete will dampen any noise as well as granite, etc..dc_ch wrote:Countertop is ~1.75" thick concrete
It's OK also, the S1 can operate at the higher pressure, it looked really high on yours and I remembered that you're operating with a regulater and it looked too high for being on a regulator.dc_ch wrote: In thinking that the pressure was too low, I took the regulator off. I will put that back on to see if it makes a difference.
My S1 is really smooth and nearly silent after I moved it to another countertop. My VII is making the noises; vibrating, rattling and other nerve-racking oddities of sounds due to the wood counter it's on. I think it will also smooth out with more use since it's pretty new. I remembered my older S1 doing the same things but it got quieter with more use (besides moving it to another location).