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OfflineMichiaelJackson
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Pressure Cooker (canner) Jiggler problem
    #10580715 - 06/27/09 08:02 AM (15 years, 6 months ago)

I recently purchased my first pressure cooker second hand, and I've run into some problems with it and am having a hard time finding anyone else who has experienced this (both here and from extensive googling).

First off, the pressure cooker I got was a Presto 17 qt. model #0175004. This model comes with a dial gauge, weight 'jiggler', interlock, and over-pressure plug. The gasket on the interlock seems to be missing, but it holds pressure up to 5 psi with no leaks, but I think I am going to replace the assembly if it won't hold @ 15 psi.

I tried doing a dry run yesterday, my intent was to find the proper setting on my stove for maintaining 15 psi as well as finding out the approximate water loss over time at that pressure. While doing this test, I found out some useful information about my jiggler, mainly that it doesn't jiggle.

When the weight shifts to one side, it just stays there and acts like a release valve (doesn't let out all of the pressure, but won't build over about 3.5 psi). I have a few possible conclusions that I have come to.

1. My range top isn't level. I don't have the equipment to measure the slope of the range, but I can definitely see that it isn't level by eye. I rotated the cooker around to make the weight sit more level, and that helped, letting it 'jiggle' around 5 psi, but still 'fell off' around 6 psi. I don't think this is the main reason for my problem, but could be a contributing factor to problems down the road once the solution is determined. Does one's range need to be level?

2. My gauge is possibly junk. This is a second hand unit, and I had to replace the nut under the dial gauge, so who knows if its any good (or if it was air shipped, the decompression could have wrecked it?). Can a dial gauge be off by 10 psi and still resemble a working gauge?

3. Wrong weight shipped with unit. The unit came with a cylindrical weight with a 15 stamped on top. The vent pipe is 5/16" at the widest part, and 7/32" at the top of the chamfer. The weight is approx 13/32" at the hole in the bottom and 5/16" at the center (please keep in mind that all these measurements are made eyeballing with a tape measure). I don't have any easy way to measure the depth of the chamfer, so I won't bother trying to figure out the slope of both to see if they match. this gives me an overall clearance of 3/32" all around. Is this too much 'slop'? Playing with the weight/vent, there does not seem to be any way I can hold it and tip the weight and have it return to a neutral position. Also looking up replacement parts, the weight looks more like a cone with a disk on top, which seems more liable to return to a central position than a cylinder.

Any suggestions as to what the problem is, and how I can fix it?

-MJ

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Offlinehyphae
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Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10580745 - 06/27/09 08:15 AM (15 years, 6 months ago)

First and I'm sure you have checked from the sounds of it make sure both areas are clean of debris. Second are you saying these is not the weight that is suppose to come with the unit? It definitely sounds like it's not the gauge. I'm just wondering how far off from level your stove actually is. The mating surfaces should be shiny metal (clean) BTW. The weights do work on the principle of level so there can be a problem there which is a very simple fix level your stove then we'll go from there. GL


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"

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OfflineMichiaelJackson
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Re: Pressure Cooker (canner) Jiggler problem [Re: hyphae]
    #10580765 - 06/27/09 08:21 AM (15 years, 6 months ago)

Quote:

hyphae said:
First and I'm sure you have checked from the sounds of it make sure both areas are clean of debris. Second are you saying these is not the weight that is suppose to come with the unit? It definitely sounds like it's not the gauge. I'm just wondering how far off from level your stove actually is. The mating surfaces should be shiny metal (clean) BTW. The weights do work on the principle of level so there can be a problem there which is a very simple fix level your stove then we'll go from there. GL




I'm not sure if it is the correct weight (OEM from manufacture, at least), I bought the unit second hand. Pressurecoooker-outlet.com has a weight for sale for that unit with the conical design, also labeled as 'Replaces parts 82117 & 33804'.

Both the weight and vent are free of debris. I tried lubing the vent up with a little evoo, and it didn't make any difference.

While I can't easily measure how off level the range is, I can go grab a level and shim the surface to level it. I will check and see if that fixes the problem.

EDIT: The weight has an overall matte surface finish. it looks like the material finish is from the machining process. I have some mothers polish I can hit it with, but I don't want to remove any more material (or fillet my corners) if over-gapping is causing this problem. Then again, if it is over sized, not polishing it probably isn't going to help anyhow.


--------------------
Wanna hear something depressing? One out of four Shroomerites wants to lock me in a government cage for using a substance they don't like.

Hard to believe, right? Read it for yourself:

http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721

Edited by MichiaelJackson (06/27/09 08:24 AM)

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Offlinehyphae
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Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10580793 - 06/27/09 08:34 AM (15 years, 6 months ago)

By shinely I meant machined no build up of any kind. Do not use any lube that could interfere with it's operation. Level the stove first. GL


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"

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OfflineMichiaelJackson
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Re: Pressure Cooker (canner) Jiggler problem [Re: hyphae]
    #10580977 - 06/27/09 09:27 AM (15 years, 6 months ago)

I leveled the stove, and still had the same problem. Can you look at the 2 below pics and let me know if this is normal for a weight to sit like this on the vent?



The pic on the left is in the 'neutral' position, where the one on the right was just pushed over. This is the state where it sits and doesn't jiggle back to the other side, it just vents like crazy.


--------------------
Wanna hear something depressing? One out of four Shroomerites wants to lock me in a government cage for using a substance they don't like.

Hard to believe, right? Read it for yourself:

http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721

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Offlinehyphae
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Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 13 years, 8 months
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Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10580992 - 06/27/09 09:35 AM (15 years, 6 months ago)

It certainly looks like it's sitting too high/top heavy. I recommend ordering an updated weight kit they're cheap enough.


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"

Extras: Filter Print Post Top
OfflineMichiaelJackson
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Registered: 06/27/09
Posts: 175
Last seen: 15 years, 4 months
Re: Pressure Cooker (canner) Jiggler problem [Re: hyphae]
    #10581219 - 06/27/09 11:09 AM (15 years, 6 months ago)

Thanks for the help! I'll refresh the seals while I'm at it.


--------------------
Wanna hear something depressing? One out of four Shroomerites wants to lock me in a government cage for using a substance they don't like.

Hard to believe, right? Read it for yourself:

http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721

Extras: Filter Print Post Top
Offlinehyphae
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Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
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Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10581271 - 06/27/09 11:32 AM (15 years, 6 months ago)

Quote:

MichiaelJackson said:
Thanks for the help! I'll refresh the seals while I'm at it.



Don't forget to get the kit not just a weight kits are a matched set so you know you know it's right. GL


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"

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OfflineGadgetGuy
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Registered: 06/26/09
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Last seen: 9 years, 4 months
Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10581289 - 06/27/09 11:41 AM (15 years, 6 months ago)

I think you may actually have the wrong weight but I could be wrong. Here is a picture of my PC Presto 17qt. I don't actually know the model number so I cant really help there. Mine starts rocking pretty good around 14 psi. This unit is probably around 6 or so years old maybe 7 years if that helps you at all. Tried to get my picture put in here but it needs to be resized and I just don't have time right now gotta run. I think you may be able to look in my picture gallery to see it though. I try to get the pic up later.

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OfflineMichiaelJackson
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Registered: 06/27/09
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Re: Pressure Cooker (canner) Jiggler problem [Re: hyphae]
    #10581457 - 06/27/09 12:37 PM (15 years, 6 months ago)

Quote:

hyphae said:
Quote:

MichiaelJackson said:
Thanks for the help! I'll refresh the seals while I'm at it.



Don't forget to get the kit not just a weight kits are a matched set so you know you know it's right. GL




I'm not sure what you mean by 'kit'. The places I've been looking don't seem to offer one. Do you mean get a new vent stem and weight?

Quote:

GadgetGuy said:
I think you may actually have the wrong weight but I could be wrong.




I was thinking for it to be an effective jiggler, gravity would have to force it into a neutral position, rather than allow it to sit at an angle.

I suppose thats what I get for getting something secondhand...


--------------------
Wanna hear something depressing? One out of four Shroomerites wants to lock me in a government cage for using a substance they don't like.

Hard to believe, right? Read it for yourself:

http://www.shroomery.org/forums/showflat.php/Number/7874721#Post7874721

Extras: Filter Print Post Top
Offlinehyphae
born to grow
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Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 13 years, 8 months
Trusted Cultivator
Re: Pressure Cooker (canner) Jiggler problem [Re: MichiaelJackson]
    #10581534 - 06/27/09 12:57 PM (15 years, 6 months ago)

Yes stem and weigh don't forget the Teflon tape.
I definitely haven't seen that weight with the Presto's go with the new design for sure. GL


--------------------
Getting the most out of your casings!, A pinning strategy.
Oyster Shell "Flour" $2 for 1lb. a hell of a deal :wink:
Not what is overlay but rather what overlay is
Gas Exchange vs. FAE

"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"

Extras: Filter Print Post Top
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Shop: Kraken Kratom Red Vein Kratom   North Spore Cultivation Supplies   PhytoExtractum Maeng Da Thai Kratom Leaf Powder   OlympusMyco.com We’re Not Chasing Unicorns—We’re Building Quality (Olympus Myco Grow Bags)


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