How to Reseal the Tune M1

I didn't have any issues with leaks over the winter, but after a car wash one day I noticed water was getting into the truck bed. After a quick call to Tune, I started the reseal process.

Here are the products I used or that were recommended by Tune:

Finding the Leak

I was washing my truck one day when I noticed that the wooden shelf that holds my microwave and battery was looking damp — and starting to grow a little mold. When I went looking for how it was getting wet, I found a slow leak coming through one of the bed corners. Funny enough, it only leaked at the car wash; it didn't seem to happen when it was raining.

Mold growing on the wooden shelf that holds the microwave and battery

The Moldy Shelf

Bed Corner Reseal

Toyota Tacoma truck beds have a small gap where the back of the bed and the sides meet. This was great for me, because I used the gap to run all of the external wiring into the camper, saving me from having to drill any holes into my truck! The bad news is: these gaps can leak. Over time, mine did.

The gap in the Tacoma bed corner where the wiring runs into the camper

The Bed Corner Gap

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Resealing the Tune M1

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The process is easy, and the camper stays on the truck the whole time. After you have the reseal putty, all you need to do is:

Open up the package (the putty is kind of gross)
Scrape off any old, crumbly putty from the camper
Reapply the new putty

A fresh package of the gray reseal putty

The Putty

This job took 30 minutes. I applied the putty and voila, the camper no longer leaks when the hose is pointed at it!

I used barely any of the brick. I think I could reseal the camper 10 times with what is left. The rest went into a Ziploc bag, and hopefully it stays pliable until the next reseal.

Putty pressed into the bed corner from outside

Putty Applied

Sealed Corner

Front Weather Sealing

I also had a weather sealing issue. It looks like the glue that held the seal to the camper just got old. It doesn't leak at this point, so I am not going to touch it, but if you are looking to replace your seals, here is what Tune uses: a double D-bulb gasket on the sides, and on the front, almost always a single 1" D-bulb.

Front Weather Seal

Final Thoughts

All in all, I am really happy with the weather resistance the Tune provides. I have never had a wet night. If this is all the maintenance that is needed, I am a happy camper!

Watch On YoutubeYouTube

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