Jump to content
Nicknak

La Pavoni Ceramic washers

Recommended Posts

When I stripped down the two 1978 La Pavonis I noticed that several of the ceramic washers on the heater disintegrated.. It would seem a common problem . I found that orphan espresso and the chap on spanglefish in the uk recommend using PTFE As substitutes.

It has a working range up to 250-260C

I bought a metre of the stuff and it is dead easy to drill and cut on a lathe .

Has anyone tried this or can see pro or cons ?

Share this post


Link to post
Share on other sites

FD31AA6C-3F83-4647-804F-514CEBD1ADEE.jpg

Here are some I made earlier ... Best I give them ago .. what could go wrong ?

Share this post


Link to post
Share on other sites

This is a common issue and the same thing happened to my two 78s. Fortunately Francesco had some for me but if this works you should make extras as I'm sure others will happily pay you for them.

Share this post


Link to post
Share on other sites

Good solution its a PITA to get the ceramic ones in the right size, I got a few but PTFE ones would be a lot more robust.

 

If you need to Kiln the elements and refill the ends where insulation has fallen out then use v high temp JB weld https://www.ebay.co.uk/p/J-b-Weld-8297-HighHeat-Temperature-Resistant-Epoxy-Putty-Stick-Machine-Gray/2298367631?iid=132871626692&chn=ps

 

 

if you want to reseal the ends use a high temp insulator varnish https://www.ebay.co.uk/itm/RED-AIR-DRYING-VARNISH-HIGH-VOLTAGE-ANTI-TRACKING-AIR-DRYING-VANISH-70KV-100ml-/142016839037?hash=item2110dcfd7d


keep calm and grind flat

Share this post


Link to post
Share on other sites
Good solution its a PITA to get the ceramic ones in the right size, I got a few but PTFE ones would be a lot more robust.

 

If you need to Kiln the elements and refill the ends where insulation has fallen out then use v high temp JB weld https://www.ebay.co.uk/p/J-b-Weld-8297-HighHeat-Temperature-Resistant-Epoxy-Putty-Stick-Machine-Gray/2298367631?iid=132871626692&chn=ps

 

 

if you want to reseal the ends use a high temp insulator varnish https://www.ebay.co.uk/itm/RED-AIR-DRYING-VARNISH-HIGH-VOLTAGE-ANTI-TRACKING-AIR-DRYING-VANISH-70KV-100ml-/142016839037?hash=item2110dcfd7d

Thanks , Got some of the varnish in my watch list after reading about it on here :) .. I take it the JB putty is non conductive ( of course it would be) I’ve got ceramic ones for one machine .. Don’t know why I bought a metre must have been cheaper ..

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • About:

    Coffee Forums UK is the UK's premier coffee forum Started in June 2008 by Glenn Watson, we now have more than 22000 mainly UK based members, and welcome more than 3000 members and visitors from around the world each day! With strategic investment and digital expertise from the Jackson Lockhart team (Tait Pollack and Adam Bateman), we are taking Coffee Forums UK to the next level, and are delighted to share the journey with you.

    New Members:

    We are often referred to as the friendliest forum on the web and we look forward to welcoming you onboard.

    Terms of Use

    Advertising

    Coffee Forums Media Kit

    Buy Advertising Space

    Donate

    Get Your Supporter Badge (per year)

×
×
  • Create New...