So what do you guys with stacks do when it starts raining?? I've been wondering about that for a while. Do you have to run outside and put a coffee can over the pipes?

 

There has been talk of that. Most just drill a small hole in the pipe underneath to let water out.

 

I got pics in my gallery of what I do, hehehe.

 

I just leave em be. I've left the truck standing still in a rain storm that dumped 2"-3" of rain before and got in it the next morning and fired it up without any problems. Mine drains out of the 90" elbow under the bed so it's no big deal.

 

I drilled/tapped then installed a stainless 1/4 ball valve in the bottom of the 90. So far so good. I used a stainless ball valve with the locking handle to prevent self opening. I ordered the ball valve from Mcmaster Carr. It was only like 10 bucks.

 

Mine is a 5" stack. The 4" runs up inside the 5" for about 18". When it rains, pretty much all the water runs down the sides of the 5" and drains out holes drilled in the 4" to 5" adapter. No black crap spattered on my truck.

 

Nope.................

 

If you had water in them wouldn't it just blow it out when you got into it some?
If not, would the water evaporate? thanks,
Wheelo

 

YEP..........................

 

Nothing, doesn't seem to want to blow it out. Snow on the other hand is alot of fun.

Caps are going back on soon anyway.

 

mine dosent drain out at the bottom, i jsut start it up and revv it and black crap goes everywhere. kinda fun, but can get a white truck diry in a hurry!

 

couldnt you use a check valve or one way valve or something? or would it leak exhaust?

 

I have 5" turnouts on mine and it usually doesn't get water in them unless the rain comes down just right or I am not careful when I wash the truck.

 

Theoretically speaking, if the truck sits long enough in the rain, the water could fill the exhaust, enter the turbo, fill the exhaust manifold, and enter a cylinder via an open exhaust valve.

Two things can then happen.

You hit the key and bend a rod; or, the weather freezes and busts the cylinder liner, exhaust manifold, and piping.

 

just drill a hole in the low point and stop worrying it will just drip out