Rave Coffee Roasters
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 22

Thread: Boiler and Solenoid Issues

  1. #11
    Join Date
    May 2011
    Location
    Oxford
    Posts
    1,014
    Post Thanks / Like
    Mentioned
    23 Post(s)

    Default

    Perhaps you should've stated that an extension bar is also required
    1995 'Coffee Gaggia' with full Gaggia Classic conversion, DIY PID Controller, OPV set to 9bar, Silvia steam wand, Botomless PF, VST 15g Basket, Motta 58mm Tamper and Ascaso I-Mini grinder

  2. #12
    Join Date
    Jul 2017
    Posts
    105
    Post Thanks / Like
    Mentioned
    1 Post(s)

    Default

    Quote Originally Posted by L&R View Post
    Not really

    Water tank -->Pump-->OPV-->Boiler-->3Way-->Group Head-->Shower Screen Plate-->Shower screen

    Usually 3Way gets blocked with limescale particles from the boiler

    To undo the bolts use WD-40(or other penetrating oil) and propane torch to heat the bolts



    BR
    The 3 way solenoid doesn't affect the water flow through the group head, which was the OPs problem.

  3. #13
    Join Date
    Mar 2018
    Location
    BG
    Posts
    444
    Post Thanks / Like
    Mentioned
    9 Post(s)

    Default

    It really does, if the valve is not energized, you won't see any water out of the group head.
    ☕Gaggia☕Enthusiast☕

    Buying expensive equipment won't make you barista!

  4. #14
    Join Date
    Mar 2018
    Location
    BG
    Posts
    444
    Post Thanks / Like
    Mentioned
    9 Post(s)

    Default

    About stuck bolts, today I had to deal with really corroded one and decided to make some pictures for this thread.

    If you have really stuck bolts my advice is to follow this procedure.

    1. Carefully cut the head with your angle grinder
    2. Remove upper boiler
    3. Apply heat with your torch
    4. Apply penetrating oil
    5. Undo the bolt with your pliers, surprisingly stuck bolt will come out easy

    IMG_20181013_121623.jpgIMG_20181013_121558.jpgIMG_20181013_121735.jpgIMG_20181013_121800.jpg
    ☕Gaggia☕Enthusiast☕

    Buying expensive equipment won't make you barista!

  5. #15
    Join Date
    May 2011
    Location
    Oxford
    Posts
    1,014
    Post Thanks / Like
    Mentioned
    23 Post(s)

    Default

    Not always that easy if the machine has spent any time in London
    1995 'Coffee Gaggia' with full Gaggia Classic conversion, DIY PID Controller, OPV set to 9bar, Silvia steam wand, Botomless PF, VST 15g Basket, Motta 58mm Tamper and Ascaso I-Mini grinder

  6. #16
    Join Date
    Mar 2018
    Location
    BG
    Posts
    444
    Post Thanks / Like
    Mentioned
    9 Post(s)

    Default

    Heating up to the red the bolt is the key to success. This machine was extremely scaled, you can count it from London
    london.jpg
    Last edited by L&R; 13-10-18 at 03:04.
    ☕Gaggia☕Enthusiast☕

    Buying expensive equipment won't make you barista!

  7. #17
    Join Date
    Oct 2018
    Posts
    4
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Default

    Quote Originally Posted by MartinB View Post
    I used a decent 5mm allen key and put all of my weight on it. It may be worth trying this when the boiler is warm, or sit it in warm water for a few minutes.

    Don't fear if you shear the head of the bolt off, the boiler will prise open (if all bolt heads sheared) and then some wd40 and a pair of decent pliers will hopefully remove the thread from the grouphead.
    Appreciate it, unfortunately all my weight and extra leverage isn't opening it. I got one of the bolts out, and it was in very bad shape. Unfortunately I don't have the tools to heat the bolts.

    I'm thinking I need to get a new boiler and group head. Any advice on what is a reasonable price to pay?

  8. #18
    Join Date
    Oct 2016
    Location
    Earth
    Posts
    4,631
    Post Thanks / Like
    Mentioned
    45 Post(s)

    Default

    Quote Originally Posted by NorfolkGaggia View Post
    Appreciate it, unfortunately all my weight and extra leverage isn't opening it. I got one of the bolts out, and it was in very bad shape. Unfortunately I don't have the tools to heat the bolts.

    I'm thinking I need to get a new boiler and group head. Any advice on what is a reasonable price to pay?
    Buying those 2 bits new you're looking at the better part of £160 + postage from The Espresso shop. The grouphed is silly money.

  9. #19
    Join Date
    Oct 2018
    Posts
    4
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Default

    Thanks. Perhaps cheaper to find someone in Norfolk or nearby with the tools to remove the bolts connecting the boiler and group head.

  10. #20
    Join Date
    Oct 2016
    Location
    Earth
    Posts
    4,631
    Post Thanks / Like
    Mentioned
    45 Post(s)

    Default

    Quote Originally Posted by NorfolkGaggia View Post
    Thanks. Perhaps cheaper to find someone in Norfolk or nearby with the tools to remove the bolts connecting the boiler and group head.
    A local independant garage may help. You wouldn't be the first to take the innards of an espresso machine to one.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Has Bean In My Mug

Important Site Information


Google Analytics Alternative