Bulkhead rebuild

Topic: Bulkhead rebuild (Read 10400 times) previous topic - next topic

Re: Bulkhead rebuild

Reply #100 – July 24, 2025, 08:40:58 am

Peter what are you using for adhesive? Have you skinned the bottom of the frame yet and what did you use for insulation?

Re: Bulkhead rebuild

Reply #101 – July 24, 2025, 05:33:33 pm

Quote from: oldguy – June 30, 2025, 09:39:13 am

What are the bolts used in the bulkhead called. Are they tapped or do they self tap and if so what
size hole is used for 5/16th

Rolok.pdf

Re: Bulkhead rebuild

Reply #102 – July 25, 2025, 08:52:16 am

I use Sika Pro and I'm planning to urethane foam insulation.

Re: Bulkhead rebuild

Reply #103 – July 25, 2025, 07:08:40 pm

Nice job
Johnh

Re: Bulkhead rebuild

Reply #104 – July 26, 2025, 11:00:02 am

Used Sikaflex to caulk the wet bay and finished bolting up the frame.

Re: Bulkhead rebuild

Reply #105 – July 26, 2025, 12:22:48 pm

Peter,

I am a little surprised that before bolting the new "frame" to the coach that you did not turn it over, add insulation and filon bottom, perhaps leaving loose the very front and back to allow bolting up to the front and back sections.

Re: Bulkhead rebuild

Reply #106 – July 26, 2025, 09:43:30 pm

Brett I'm planning to urethane foam it instead.

Re: Bulkhead rebuild

Reply #107 – July 26, 2025, 09:51:09 pm

It was really hard installing the black tank as both the pipes were not square.

I'm planning to just plumb the fresh water tank that city water can only fill the tank and not be able
to run the system off city water. It makes plumbing the system much easier and much more trouble
free.

Re: Bulkhead rebuild

Reply #108 – July 30, 2025, 09:14:04 pm

Finally got the fresh water system hooked up. It sure take a long time to get anything done.

Re: Bulkhead rebuild

Reply #109 – July 30, 2025, 10:40:11 pm

Quote from: oldguy – July 30, 2025, 09:14:04 pm

Finally got the fresh water system hooked up. It sure take a long time to get anything done.

In picture, on bay with ,manifold partition, what is the black pump for that is in upper middle right side?

Re: Bulkhead rebuild

Reply #110 – July 30, 2025, 11:36:28 pm

Heat exchanger from the aquahot to keep the tanks from freezing

Re: Bulkhead rebuild

Reply #111 – July 31, 2025, 08:43:34 am

Quote from: craneman – July 30, 2025, 11:36:28 pm

Heat exchanger from the aquahot to keep the tanks from freezing

I think he means left side of the vertical - the black thing that looks like it T's with the larger-diameter PVC plumbing.

Re: Bulkhead rebuild

Reply #112 – July 31, 2025, 09:05:54 am

That's the recurc pump for the shower and the bathroom sink so I have almost instant hot water.
I have another one under the kitchen cabinet for the kitchen tap. It saves so much water.

Hot water recirculation system

Re: Bulkhead rebuild

Reply #113 – August 02, 2025, 10:15:39 pm

I finished getting the sewer pipes in this morning. Then my son helped me get the Aqua-hot into
position. We used the blocks to raise the Aqua-hot by rocking it back and forth adding block to get
it up to the height to push it into place. Got it bolted up and the heating pipes tighten up. The second
picture is how the Aqua-hot burner looked after 5 years. The refractometer sight glass was really dirty.
Cleaned the burner changed the nozzle.

Re: Bulkhead rebuild

Reply #114 – August 02, 2025, 10:19:14 pm

Peter,

Just wanted to say how much your photo documentation and detailing of the process is appreciated. I have no doubt this will help members in the future, so Thank You!!

Michelle

Re: Bulkhead rebuild

Reply #115 – August 04, 2025, 08:59:32 pm

I don't know how I would have installed or bolted down the Aqua-hot with out cutting holes from
the fuel tank area. To plug the holes I used some scrap fiberglass I had and pushed them into the
holes and put silicone on the top and bottom and used string to holed them in place until the silicone
dried. I put the cutouts up against the fiberglass and use screws the hold them in place and used a
putty knife to apply the epoxy. Tomorrow I will finish with the epoxy and then the next day I will sand
it smooth.

Re: Bulkhead rebuild

Reply #116 – August 08, 2025, 09:32:40 pm

I installed the tank today using blocks. My son came over this morning to help me remove the door
and then left so using blocks I was able to install the tank by my self.

Re: Bulkhead rebuild

Reply #117 – August 11, 2025, 11:31:07 pm

Had a bit of a screw up, I installed the Aqua-hot a 11/2 right of where it should be so I had to remove
the fuel tank and open the opening that I built so I could put the Aqua-hot where it should be. The fuel
tank will go back in again tomorrow.

Re: Bulkhead rebuild

Reply #118 – August 14, 2025, 10:50:02 pm

I jacked up the coach today for the insulators and the frame is so stiff that jacking under the rear
axle the front axle would lift up so I didn't need to use the jack on the front axle. The frame is really
stiff.

Re: Bulkhead rebuild

Reply #119 – August 16, 2025, 08:32:10 pm

This is how I'm going put the sewer hose holder back together.

Re: Bulkhead rebuild

Reply #120 – August 19, 2025, 10:51:00 am

I'm ready to fill the Aqua-hot just confirming that it take 16 gallons of fluid.

Re: Bulkhead rebuild

Reply #121 – August 19, 2025, 12:03:43 pm

Peter,

If our unit has had the radiators and related piping drained it takes a full 16 gallons to fill and reprime each heating loop. If we just drain the boiler it takes about 14 gallons to fill. Rudy may have more exact numbers.

Mike

Here is another thought: I do the A/H like the engine flush. I dump old antifreeze and then fill with clean water. I run this water through the heating ;loops. I do this a couple of times. Then I put in enough antifreeze that will be good for 16 gallons. (like 8 gallons of concentrate) then fill with water.

Re: Bulkhead rebuild

Reply #122 – August 19, 2025, 01:28:20 pm

Thanks Mike, the old antifreeze looks like new so I will just replace with new antifreeze and as most
of the system will have drained I will figure on 16 gallons.

Re: Bulkhead rebuild

Reply #123 – August 20, 2025, 09:46:28 pm

Got it spray foamed today and the sewer hose storage tube is back together.

Hooked up the battery and wanted to fill the air bags and nothing. The travel light came on but
nothing happens when I pushed any of the buttons. The batteries have been disconnected for
at least 3 months.

Re: Bulkhead rebuild

Reply #124 – August 21, 2025, 12:01:34 am

Quote from: oldguy – August 19, 2025, 10:51:00 am

I'm ready to fill the Aqua-hot just confirming that it take 16 gallons of fluid.

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