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Thread: Sunbeam 6910 pump pressure

  1. #1
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    Sunbeam 6910 pump pressure

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi all,

    First post here so hopefully Im in the right area. Anyway I have a Sunbeam 6910 which I have had for a couple of years now and was wondering if anyone could shine some light on an issue Im having.
    My problem is the extraction is happening really quick and ruining a good brew. Just today I picked up 500 grams of Di Bellas finest and had them do a commercial grind for me and to look at it looks very finely ground.
    Thought it was my sunbeam grinder that was the issue but now Im thinking maybe its the machine. Is it possible the machine has to much pressure and forcing its way thru to quick?
    When I tamp the coffee grinds it is even throughout the porta filter give it a couple of taps on the side and gets a really firm push down on top.
    Seems to me that I have to grind on the very finest setting I can to slow it up which takes a while to grind.
    The machine has been cleaned thoroughly on a regular basis and Im running out of ideas. I would have thought a commercial grind from a shop would be good enough, anyway any ideas greatly appreciated. :)

  2. #2
    A_M
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 2A3E3838222E2F2E2A254B0 link=1298463748/0#0 date=1298463748
    Thought it was my sunbeam grinder that was the issue but now Im thinking maybe its the machine. Is it possible the machine has to much pressure and forcing its way thru to quick?
    When I tamp the coffee grinds it is even throughout the porta filter give it a couple of taps on the side and gets a really firm push down on top.
    Seems to me that I have to grind on the very finest setting I can to slow it up which takes a while to grind.
    The machine has been cleaned thoroughly on a regular basis and Im running out of ideas. I would have thought a commercial grind from a shop would be good enough, anyway any ideas greatly appreciated.
    Where are you ?

    Doubt it is the pump... beans / dose / grind / tamp....

    Grinder could do with a clean and or need a shim.

    Do a search as too many posts to mention about grinder issues and most are the same...

  3. #3
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    Re: Sunbeam 6910 pump pressure

    Thanks for the prompt response, I have the latest Sunbeam grinder and it has been shimmed already. Both the Grinder and the machine get cleaned on a regular basis and the grinder blown out with compressed air.
    As I mentioned the grind I had done was a commercial grind and even with a very firm tamp, I mean getting over the top of it and pushing down quite hard it just seems to flow thru in about 5 sec. :(

  4. #4
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 445056564C404140444B250 link=1298463748/2#2 date=1298467488
    the grind I had done was a commercial grind
    What does that mean?

    Quote Originally Posted by 445056564C404140444B250 link=1298463748/0#0 date=1298463748
    it looks very finely ground
    Looks can be deceiving.

    If the pour is too fast the grind is too course.

  5. #5
    A_M
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 1529342F252433262E25410 link=1298463748/3#3 date=1298468547
    Quote Originally Posted by 445056564C404140444B250 link=1298463748/2#2 date=1298467488
    the grind I had done was a commercial grind
    What does that mean?

    Quote Originally Posted by 445056564C404140444B250 link=1298463748/0#0 date=1298463748
    it looks very finely ground
    Looks can be deceiving.

    If the pour is too fast the grind is too course.
    AND

    Quote Originally Posted by 2034323228242524202F410 link=1298463748/2#2 date=1298467488
    As I mentioned the grind I had done was a commercial grind and even with a very firm tamp, I mean getting over the top of it and pushing down quite hard it just seems to flow thru in about 5 sec.
    Way to course / stale or some one has made big holes in ya basket..

    PS. 5 Sec from when ?* *You press the button or what ??

  6. #6
    Senior Member Rusty's Avatar
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    Re: Sunbeam 6910 pump pressure

    How much coffee are you using? The 6910 needs to be updosed.


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    Re: Sunbeam 6910 pump pressure

    A commercial grind was from the shop which does indeed look fine even to feel.

    And yes from the time I hit the button till its finished or looking pale brown in colour (5-7sec).

    Im overfilling the basket normally giving it a couple of taps on the side and tamping very firmly. It is normally quite firm to put the group head into the machine.

    This morning I have found another Sunbeam basket being a 2 cup one that is dual floor and has 1 hole in the bottom. Going to try that one. If that doesnt work maybe regrind the coffee to the finest I can.

    Anyway thanks for the ideas much appreciated :)

  8. #8
    A_M
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 7A6E6868727E7F7E7A751B0 link=1298463748/6#6 date=1298500348
    It is normally quite firm to put the group head into the machine.
    Then your well on the way to stuffing your collar... And costing your self $200

    Quote Originally Posted by 7A6E6868727E7F7E7A751B0 link=1298463748/6#6 date=1298500348
    This morning I have found another Sunbeam basket being a 2 cup one that is dual floor and has 1 hole in the bottom. Going to try that one.*
    Then you will need to be a lot courser... Hint run this basket with NO coffee grinds and look at the result...

    Yes NO coffee and on default settings you will get the right volume in teh right time = Thus your machine is OK ;)

    How many shims in ya Grinder... If you also told teh shop it was for a Sunbeam then they would not grind fine... Even if do in a commercial grinder.

    Note: Do not use a single basket. Always use a double basket with the single floor. It will be the Beans / Grind / Method that is teh problem.

    What is your location as another CS member might be just around teh corner.


  9. #9
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    Re: Sunbeam 6910 pump pressure

    Im located on the Southside of Brissie in Underwood but I think you maybe onto it re the grinding though. The chap at DiBella asked about the machine and I told him the model.

    Have to take it apart to look at the shims as it was done a while ago but Im pretty sure there was at least 2 or 3 in there.

    Okay no more overfilling then, got enough problems now without adding to it, thanks for the heads up.

    Going to do a re-grind to a finer setting and see if that works. Maybe I just need a descent grinder do you think.

    Not knocking the Sunbeam as it has served me well but when I look at some of the better gear out there Im on the lower end of the market expecting outstanding results.

    Will post on my results .... thanks again


  10. #10
    A_M
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 726660607A767776727D130 link=1298463748/8#8 date=1298505683
    Will post on my results .... thanks again
    Keep us informed... Dont forget teh Brisbane CS Meet and Greet is only a week away!!!

  11. #11
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    Re: Sunbeam 6910 pump pressure

    Put 3 tablespoons of my "Commercial Grind" in the grinder and took forever to regrind, takes way to long and had to shake rattle and roll the grinder to get the product out.

    It did however proof a point as I put those grinds in the basket and the pressure gauge shot up into the red. No good I know like that but at least I know now the issue is with the grinding. (As you guys have said)

    Put my commercial grind in the basket again and same problem ..... comes thru to quick. Doesnt matter how hard I tamp just comes thru to quick.

    So I will get some more beans and wind the grinder down a notch at a time till I get it right.

    Many thanks for all that helped out ....cheers :)


  12. #12
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    Re: Sunbeam 6910 pump pressure

    I hear regrinding is no good for your grinder.

    If you have a Sunbeam 0450/0480 it will grind fine enough for the 6910 so why are you buying pre-ground?

  13. #13
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    Re: Sunbeam 6910 pump pressure

    Quote Originally Posted by 1428352E242532272F24400 link=1298463748/11#11 date=1298513246
    f you have a Sunbeam 0450/0480 it will grind fine enough for the 6910 so why are you buying pre-ground?
    Thought I would try a grind from a commercial outlet to see if there was any difference. I normally grind my own but it seems to me that something else was the problem .... have since found that grinding finer maybe the solution.



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