Port hole dogs
- Thread starter jorgefife
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By "dogs" you are refering to just the knobs? I think that I remember that. There is something about the threads on the end of the stud to prevent the knob from coming off. Someone will know how that is overcome. One way obviously would be to replace the entire dog, the stud with the knob. You might even get those here from the SBO store.
I had the same problem and you can purchase replacement knobs at an outragious price or ifyou have a little time and patience you can try this:
There are 4 parts to the set up:
A plastic knob
A small threaded tube that's pressed into the knob and runs up and dow the dog screw
A dog screw thats attached to the window frame, and
A small pin that attaches the dog screw to the window frame.
I removed the knobs and dog screws by pulling the pin at the at the bottom of a screw. I used a small punch to move the pin out to where I could grab it with a needle nose pliers and a small tack hammer helps. I then removed the knob assembly from the window frame. I did all the knobs on my H-30 (8 ports).
At this point most of the plastic knobs just pooped off the screws. When they did not I pulled them with the pliers. The knob was only press fitted to a small threaded tube that runs up and down the dog screw. The tube had some small ridges on them that was supposed to keep the knob from spinning. The problem is that the threads on the dog screw get caked with dirt, salt and corrosion and the tube wont turn on the dog screw so the knob spins on the tube.
Once I removed the plastic knobs I used a vice grip to remove the tube from the dog screw. WD40 helps. I think the threads on the end of the dog screw are flattened a little to help prevent you turning the knob of the dog screw so work slowly. Once I had everything disassembled I cleaned all the parts with a stiff brush and some water and detergent and then I use some paint thinner (to remove any grease). I also cleaned up the inside of the knob. I then ran a die up and down the threads on the dog screw and a tap in and out of the tube to clean up the threads. This is important to prevent the problem from coming back.
Then I reattached the plastic knob to the threaded tube. I put a LITTLE JB Weld (it the strongest 2 part epoxy I have found, you can get it in most hardware and autopart stores) on the inside of the knob and on the outside of the threaded tube. It's dark grey and a very little dab will do. I the pressed the threaded tube back into the knob. I was careful not to get the JB weld into the inside of the tube on the threads. I cleaned off the excess on the knob with a paper towel and let the knob and tube dry overnight.
I then put the knobs on the dog screws and but them back on the boat. Replacing the pins in the the window frames was much easirer than taking the out and VOLLA... A little WD40 on the threads and a quick wipe a few time each season should keep the threads clean and the problem from comin back.
My problem now is two knowbs where the PO tried to tieghten down to the point that they broke the mounting points on the window frame..... JB Weld to the rescue?
There are 4 parts to the set up:
A plastic knob
A small threaded tube that's pressed into the knob and runs up and dow the dog screw
A dog screw thats attached to the window frame, and
A small pin that attaches the dog screw to the window frame.
I removed the knobs and dog screws by pulling the pin at the at the bottom of a screw. I used a small punch to move the pin out to where I could grab it with a needle nose pliers and a small tack hammer helps. I then removed the knob assembly from the window frame. I did all the knobs on my H-30 (8 ports).
At this point most of the plastic knobs just pooped off the screws. When they did not I pulled them with the pliers. The knob was only press fitted to a small threaded tube that runs up and down the dog screw. The tube had some small ridges on them that was supposed to keep the knob from spinning. The problem is that the threads on the dog screw get caked with dirt, salt and corrosion and the tube wont turn on the dog screw so the knob spins on the tube.
Once I removed the plastic knobs I used a vice grip to remove the tube from the dog screw. WD40 helps. I think the threads on the end of the dog screw are flattened a little to help prevent you turning the knob of the dog screw so work slowly. Once I had everything disassembled I cleaned all the parts with a stiff brush and some water and detergent and then I use some paint thinner (to remove any grease). I also cleaned up the inside of the knob. I then ran a die up and down the threads on the dog screw and a tap in and out of the tube to clean up the threads. This is important to prevent the problem from coming back.
Then I reattached the plastic knob to the threaded tube. I put a LITTLE JB Weld (it the strongest 2 part epoxy I have found, you can get it in most hardware and autopart stores) on the inside of the knob and on the outside of the threaded tube. It's dark grey and a very little dab will do. I the pressed the threaded tube back into the knob. I was careful not to get the JB weld into the inside of the tube on the threads. I cleaned off the excess on the knob with a paper towel and let the knob and tube dry overnight.
I then put the knobs on the dog screws and but them back on the boat. Replacing the pins in the the window frames was much easirer than taking the out and VOLLA... A little WD40 on the threads and a quick wipe a few time each season should keep the threads clean and the problem from comin back.
My problem now is two knowbs where the PO tried to tieghten down to the point that they broke the mounting points on the window frame..... JB Weld to the rescue?
Most of my knobs have given up. I replaced the old ones with 1/4" bronze or nylon wing nuts. First knock out the pin in the plastic with a nail, etc., then grind off the end of the threads to be able to remove the last of the old nut.
Thank you everyone for your input
Couldn't Hunter have made it easier for everyone, by letting the dogs screw out all the way?
So if they fall on the floor?
You screw them back in again, but instead you need to perform an operation on the darn stuff!
I will try Nelsonhow's suggestion, I will follow step by step!
Couldn't Hunter have made it easier for everyone, by letting the dogs screw out all the way?
So if they fall on the floor?
You screw them back in again, but instead you need to perform an operation on the darn stuff!
I will try Nelsonhow's suggestion, I will follow step by step!
The expensive replacement knobs do not have the metal inserts and just thread onto the threaded parts.
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