benpiff Senior Member Joined: 5 Feb 2010 Posts: 294 Location: Portland, OR Expertise: I live coffee
Espresso: RocketR58,GrimacMini,Elli Grinder: LSM FK Conical, Vario Roaster: Sonofresco 1lb, Behmor
Posted Tue Nov 8, 2011, 4:08pm Subject: Rancilio Rocky problem, rough lower threads want to get jammed.
Hi all, I acquired a Rocky with a jammed upper burr that took a lot of work to remove. The grinder had hardly been used, but upon closer inspection the lower threads look rough with some obviously damaged parts (little nicks in the threads). Does a tap or repair tool this big exist? The upper burr carrier still looks fine.
This silver steel looking piece looks to bolt to the top of the motor, does anyone know where a replacement can be had? Or am I stuck trying to look for someone who is parting out a Rocky? If I try to thread in the upper burr carrier, it gets tight within a couple of turns and just wants to get jammed again. Thanks for any help!
Edit: I've emailed a couple shops and have heard that to replace this means replacing the whole motor. So thanks for any repair ideas or if anyone knows of a donor motor!
calblacksmith Moderator Joined: 25 Nov 2007 Posts: 7,314 Location: Riverside, Ca, U.S.A. Expertise: I live coffee
Espresso: ECM Veneziano A1 Grinder: Many different commercial Vac Pot: 40s era Silex Drip: Milita, Bunn&Curtis... Roaster: Cast iron pan, gas burner
Posted Wed Nov 9, 2011, 6:07pm Subject: Re: Rancilio Rocky problem, rough lower threads want to get jammed.
Now you know why the grinder was for sale LOL! At this point about all you can do Is to get a set of jewelers files and see what you can do about filing of the rough spots
There is no easy fix for your problem other than fiddly tedious work with a file.
There are tools made for cleaning up threads that look like files but I do not remember seeing one that will match the threads in your grinder. You may be able to find a set of jewelers files that are bent on the end or have a bend in them so they can reach around places I think this would be your best bet. Good luck!
Symbols: = New Posts since your last visit = No New Posts since last visit = Newest post
Forum Rules: No profanity, illegal acts or personal attacks will be tolerated in these discussion boards. No commercial posting of any nature will be tolerated; only private sales by private individuals, in the "Buy and Sell" forum. No SEO style postings will be tolerated. SEO related posts will result in immediate ban from CoffeeGeek. No cross posting allowed - do not post your topic to more than one forum, nor repost a topic to the same forum. Who Can Read The Forum? Anyone can read posts in these discussion boards. Who Can Post New Topics? Any registered CoffeeGeek member can post new topics. Who Can Post Replies? Any registered CoffeeGeek member can post replies. Can Photos be posted? Anyone can post photos in their new topics or replies. Who can change or delete posts? Any CoffeeGeek member can edit their own posts. Only moderators can delete posts. Probationary Period: If you are a new signup for CoffeeGeek, you cannot promote, endorse, criticise or otherwise post an unsolicited endorsement for any company, product or service in your first five postings.