Removing a stuck pellet stove cleanout cap with tools that work?

[Don2222]

Hello

Anyone else have this problem sometimes?

Some caps are much easier to remove than others since they vary in type but quality as well.

The common Duravent caps must be turned counterclockwise before it can be pulled off and sometimes that is the most difficult part to do!

I tried using an oil filter wrench which sounded like a good idea but in reality, I had absolutely no luck with it!

So a friend who is an HVAC man by trade got a really stuck cap off with very large gas pliers! ISeeing it work is believing! I also found these vise grip oil wrench pliers that work.

Of course I have found that spraying PB Blaster into the seam makes a huge difference and going back an forth until you can move it fully counterclockwise does help too.

Before putting the cap back on, some "Dry Moly Spray" can make the job easier in the future.

I prefer a Selkirk Vacuum Cleanout that can be a little quicker and easier in the long run.

Click pics to Enlarge:

 

[Cedarjunki]

I havnt had a problem removing the duravent caps yet. Granted its the first season for me and i probably have been removing them much more often than anyone else does. I also have not sealed the cap or taped it yet.
I did find a strap wrench usefull when i had to pull the pipes apart to seal them better.

 

[Bioburner]

My favorite. A little dab will do

 

[Don2222]

Hello

I had a good test today. I had to add more pipe to some pellet vent to bring it above the roof line.

To connect to the existing pipe I had to remove a piece that looked easy but it was RTVed and really tough!

So I pulled out the 3" Vise Grip Wrench and Voila! Also no damage!
See pics, click to enlarge:

 

[reallyte]

I drilled a hole in the end and added a big eyelet with some washers and lockouts and sealed with high temp rtv. This gives me a solid grip for vice grips without damaging the cap. The antiseize does wonders too.