I have lost pressure in my Krups 872 espresso machine....I assume because the spring in the cap has broken off--rubber, plastic parts holding it gave way

The lid is broken, you need a new lid. I have checked online and it is available, part number is MS 0927155. There will be small plastic pieces in the boiler, fill it up and tip it upside down & shake it about.

Sounds like a good cleaning or proper usage may be in order. Consult the manual for both.
Download Krups 872 Manual

Probably needs a good cleaning. Be thorough!
Download Krups 872 Manual

Krups manuals can be found online. Visit this site for the Krups 872.

http://lib.store.yahoo.net/lib/krupsonline/872.pdf

Hi,

I can email you the manual in a .pdf file.

Hi Gilbert,

Krups still sell some parts for this model.
If you still looking for the boiler cap I think you can find it here:

http://www.krupsonlinestore.com/product_detail.asp?T1=KRW+MS-0907815&MENU=parts&SELECT=espressomachines&SKW=PARTF872

Hi,

You didn't say what model is your expresso machine.
You can find parts here:

http://www.krupsonlinestore.com/category.asp?MENU=parts

Hi,
I have a #872 model. It is very similar to the #871.
Where the gasket is there is a small metal filter too, attached by a screw.
UNPLUG your coffemaker!!!
If you unscrew the filter and remove it with the gasket most likely you are going to find the other side of it clogged by coffee. Wash it off and wash the gasket well too with dishwashing soap. Rinse them off well.
You should try to clean off the coffemaker part to where the gasket lays. Usually it is full of burnt of coffee.
If there is no other problem with your coffemaker this should solve your problem.

You can find your manual at this address:
http://www.manualnguide.com/dl/11395/

Regards.

Hi if you "google" krups spare parts or krups espresso jugs you will get a few companies who sell spares. Also if you go to krups.com they will list their dealers for spares and accessories.