Steam Tip O Ring

RichardM

So my Bezzera steam tip o ring had perished over time, and I needed a new one. Not content with the pricing for a genuine one, I got talking with fellow member derrilex, and after some deliberation, decided to track them down myself.

In the parts manual, it is listed as OR GASKET D6,4X1.9 NBR70 (that is 6.4mm Internal diameter, 1.9mm thick, and Nitrile Rubber).

I found this one on RS Components http://au.rs-online.com/web/p/seals-o-rings/0689619/ - only catch is, you have to buy 50 of them....for a whopping price of $5.20inc GST including overnight delivery (ordered Tuesday night, got here Thursday).

It is a 1/4" (6.35mm) and 1.59mm thick. Close enough, I thought. So far, so good, no leaks, fits perfectly

Koffee_Kosmo

A good result RM  :thumb: I have broken 2 O rings as well and currently have just aplied thread tape until I get new O rings KK

RichardM

I have just been advised by fellow members that on their machines, the o ring sits flush, inside the tube. Mine didn't come like that (I've checked photos from the day I bought it that I took) and looking on the web, some seem to be showing, others don't. Can anyone else take a photo of your...ahem....bellend and post it here if it has the rubber showing? To get it in the shaft, I'm thinking this would be a possibility http://au.rs-online.com/web/p/seals-o-rings/0128811/

Koffee_Kosmo

This is a photo of the water bellend [attachimg=1]

derrilex

My bellend with new oring. These are 7 mm ID and 1 mm section so 9 mm OD. They fit nicely but just not quite enough crush results in a tiny  leak. I reckon 1.25 mm section would be spot on.

RichardM

on 1412937690:

My bellend with new oring. These are 7 mm ID and 1 mm section so 9 mm OD. They fit nicely but just not quite enough crush results in a tiny  leak. I reckon 1.25 mm section would be spot on.

I dunno. The one I got is 6.35mm ID, and it is easy to get on too. I think the one I linked second with the ID of 6.1mm and 1.6mm thickness would be a great fit. 1/4 mm smaller should be a little tighter to get on, but still should seal really well.

derrilex

Would be worth a shot

RichardM

So I took the plunge and bought the second O ring I referenced (well, 50 of them) and it's still a touch too big. I will look into other options, and post back. I am going to end up cutting off my nose to spite my face here, but I'll find an alternative to help others out, if it kills me. The attached photo is 9.1mm OD and 6.3mm ID I think this one will be the next one I try: http://au.rs-online.com/web/p/seals-o-rings/0689603/ - 11/32 inch (8.73mm) OD, 7/32 inch (5.56mm) ID.

derrilex

Awwww, soooo close