Primus No 1020 age and seized solid NRV

If the head is rounded off to a flat nub the tool will probably not get purchase and a stud extractor would be the next option to try. If the head is just deformed or rounded to a slant, the tool should get it out in short order.

If you have to use a stud extractor, drill out the center of the NRV with a long (extended) 3-4mm drill bit. This will allow you to use a larger diameter extractor which will not snap off in the hole.

 

Thanks Phil, i'm hoping the tool will do the job once it arrives, fingers crossed unless it is so seized that it snaps it or something worse!

 

@MG. I wish you success in getting the NRV out. I’ve been in similar situations and successfully removed the part. I don’t know what worked, the persistence, or the prayer to the unknown entities that govern the intricacies of lamps. Either way I hope the new tool works for you.
Cheers
Pete

 

@AussiePete

Thanks Pete, as the tool will lock into place i am hopeful that it will be man enough to do the job, i'll be cursing if it doesn't that's for sure!

 

I'm assuming you know the trick of putting the tool in the vice and turning the fount instead. I've found this extremely effective!

 

My vice isn't bolted down so i'll try a spanner on the nuts first and go from there.

 

Hoping for the best, MG. I'm with all the way!!

 

Thanks George, the new nrv removal tool is on its way, i'm ing too!

 

Here's a pic of my home made tool, It's made of a part from a tool kit. Works with Optimus type of NRV.



Regards Matti

 

Nice, i suppose you can make one out of many items, one that can be screwed down and held in place to stop the tool lifting off the nrv is definitely needed in this instance though.

 

Oh yeah!!

 

Woo Hoo !

Henry.

 

Well done!
Piece of cake, wasn't it

I notice that you didn't use a locking nut to secure the tool head as I did with my simple prototype (below).
Did you weld or braze it to the bolt, or perhaps just used some good thread lock? That may be sufficient.

 

@Henry Plews

Thanks Henry,

@Carlsson

Thanks, it certainly did the job, i could off possibly lowered the nuts along the rod so that it produced less twist but it worked so i am happy,
it did damage the tool head slightly but it will live on to undo another day!

My friend made it for me and silver soldered the joint which seems plenty strong enough,

Thanks to all that contributed their advice etc it was much appreciated,

I wonder if getting it up and running will be a little easier than undoing the NRV

 

One Click (tm) and it was loose

 

The best result and outcome we (all) have been waiting for! Congratulations! Mike

 

Mike!!! MY PRAYERS WERE ANSWERED!!!
doh:
If you have to, sleep with that tool under your pillow don't leave it out of your site!!!!

 

@MG Woo Hoo!!!
What a relief, this bloody stuck NRV has had us all on the edge of our seats.
If that removal tool can cook, marry it!
Well done and we’re now looking forward to the fettle.
Cheers
Pete

 

@phaedrus42

More like a twisting "is the new tool or something else going to snap" twang and then it gave and i was dancing around the kitchen

@M.Meijer

Thanks Mike, i must admit as it was my first seized NRV on a decent lamp i was a little concerned but all's well that ends well "hopefully"

@george

I will hide it down the back of the sofa, no one will ever find it down there

@AussiePete

Thanks Pete, yes i had visions of having to find another tank and although these might be a fairly common lantern? its the first one that i have come across,
I've asked it if its single but i haven't got an answer yet!
Yes i can't wait to get it up and running

If i clean up the threads, fit a new lead washer etc does anyone think its a bad idea to service and re use the original NRV, i've got some copper grease as well if needed.

 

I always reuse the original NRV, unless it's completely chewed up. You only need to replace the pip and sometimes the spring. I very rarely worry about a lead washer and Primus never used them.

 

Thanks Nils, the spring looks ok and i've got some Viton pips which should last a while, i will probably fit a lead washer as i've got a few spare, hopefully i'll have it up and running over the weekend, i've already ordered and received the new cleaning needle and jet.

 

MG
Great job! All's well that ends well!

 

Thanks George, my little disaster is averted.