Toyota Tech: Custom Snorkel Installation
Words and photos by: Ryan Trickett - 12/2005
Edited by: Mark Griese of 4x4Wire's Toyota Offroad Community
Since ARB doesn't make a Safari Snorkel for
pre-2000 Toyota Tacomas, I decided to build my own. I built this custom
snorkel for my 1998 Toyota Tacoma that works just as well as the Safari version and cost 1/3 the price. In addition, the snorkel works with my aftermarket K&N style air filter.
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| My custom snorkel |
- (1) 26.5" piece of 3" ABS Pipe
- (1) 45 degree 3" street fitting
- (1) 90 degree 3" street fitting
- (1) 3" to 2" adjustable rubber pipe fitting
- (3) feet of 2" ABS Pipe
- (1) 90 degree 2" rubber fitting
- (1) 45 degree 2" fitting
- (1) Can of ABS Pipe Glue
- (1) 8x4" piece of 16 gauge steel
- (1) 3.5" hole saw
- (1) 2.5" hole saw
- Die Grinder
- Cutoff wheel, jigsaw, or sawzall
- Hand drill and various bits
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Before starting this project, I knew I didn't want
to have just a 90-degree pipe fitting on top of my snorkel since that
would not give it the professional look I was going for. I was able to
get the top ram air
vent fitting from ARB which is the same piece used on all the Safari
Snorkels. Even though it cost more, about $60 compared to $5 for a
90-degree fitting, I think that the Safari Snorkel piece gives my
custom snorkel that professional look.
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| ARB snorkel piece |
After deciding how you want the final product to
look, remove the wheel well liner and any fender flare. Remove the
plastic liner by pulling out the plastic caps holding it to the side of
the engine compartment and the 3 bolts along the fender. Then slide the
liner away from you, toward the engine compartment. The 3 clips on the
inside of the fender will release as you slide the liner out. With the
liner removed you can get an idea of how much room you have to work
with for running your piping. After I was able to see behind the
fender, I realized that I would not be able to install the snorkel
where I originally wanted to because of the radio antenna. Instead, I
moved the snorkel to the next best location, which forced me to notch
my Bushwacker 3" fender flare. Even after relocating, I also realized I
would not be able to make the bend inside the fender to get the piping
to the stock air box elbow along the side of the engine compartment.
Instead I ran the pipe straight through the rear of the engine
compartment. Because of this it will be more difficult for those of you
trying to attach the snorkel to your stock air box using its stock
engine compartment elbow. Since I will be building an enclosure around
my K&N filter, I can plumb the snorkel into the backside of this.
Although none of these problems will prevent you from completing the
project, they are things you need to be aware of before cutting into
your truck.
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| Planning for the cuts |
Cover the area with masking tape to protect the
paint around the hole. After measuring, checking, measuring, and
checking several times over, mark the hole where the snorkel will enter
the truck and cut it out using a 3.5" hole saw. Remember, once you have
a 3.5" hole in the side of your rig, you can't go back, so make sure
your measurements are perfect and everything is lined up before
cutting. Once the hole is cut, clean it up with a die grinder or
something similar. You may have to enlarge it slightly in order to fit
the elbow in and angle it to match the A-Pillar.
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| Marking where to cut |
After cutting a huge hole in the side of your
truck, cut a 2.5" hole through the engine compartment. I decided to
step down from the 3" pipe once I got into the fender to a 2" pipe
since it would be difficult to get the 3" pipe to fit in the engine
compartment. It may be possible to run the 3" pipe through the engine
compartment but I was unable too. This bracket was the major problem of
getting the bigger pipe through the engine compartment.
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| The problem bracket |
| Snorkel Rough Construction |
At this point mock up the snorkel body. I used a
90-degree street elbow to go from the pipe into the truck, 26.5" of 3"
ABS pipe and then a 45-degree street elbow to go at the top of the pipe
to mount the Safari vent. Depending on where you wan the top of your
snorkel to sit, you may want to change the length of the pipe. With
this setup, the top of my snorkel (Safari vent) sits about 5" above the
roofline.
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| Final-with labels |
Finished-5" above roof |
Next you will need a way to attach the pipe to your
A-Pillar. I built a bracket out of 16-gauge sheet metal and mounted it
to the bottom of the A-Pillar so that I would have plenty of room to
get my bolts to fit. The dimensions for my bracket were 4"W x 2.5"H x
�"D. The �" deep is the width of the base after bending the metal. I
used 4-5/16 hex bots and, using a thread cutter, threaded these into
the A-Pillar to mount the bracket. To attach the snorkel to the bracket
I used 4 self-tapping hex drill screws.
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| A-Pillar bracket |
The rubber pipe adapter holds the bottom of the
snorkel in place. This pinches the pipe into the side of the fender and
stays with the hose clamp. This was surprisingly effective, so much
that when I tried to shake the snorkel, it instead shook the truck and
the snorkel didn't budge.
With the pipe in place, along with the pipe adapter
clamping the bottom in place, hold the pipe against the A-pillar
bracket where you want the snorkel to sit and put a screw through the
bracket to temporarily hold the pipe. This will keep everything in
place so that you can align the top 45-degree fitting so that your
Safari vent sits straight once everything is glued together. To keep
the snorkel elevated off of the A-pillar while putting a screw in to
hold it in place, I used a wrench as a shim. The final result will be
that the snorkel will sit about .5" off the A-Pillar measured from
where the shim is at.
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| Aligning the bracket |
Once you have all the pieces aligned, mark their
orientation to each other with a permanent marker. Remove the snorkel
body from the truck in one piece, disassemble, then reassemble with ABS
glue, aligning the marks you made earlier during the test fit stage.
At this point it is up to you how you want the
snorkel to look. You can leave it as is and mount it to the truck,
paint it solid black, or do what I did and paint it with truck bed
liner to match the finish of the Safari snorkel top vent. To paint with
truck bed liner, scuff the entire snorkel with either sand paper or
scotch brite pad. I also used my die grinder and ground off the labels
and chunks that were imprinted in the plastic. Then, use a cleaner; I
used Total Prep, to clean the pipe of all oils and contaminants.
Remember to use rubber gloves so as to not contaminate the pipe with
oils as you handle it.
Follow the instructions on the back of the can.
Note that most paints will require a coat of primer before painting. If
you are painting with truck bed liner you may not have to prime first,
but double check prior to spraying. Make sure to paint the A-Pillar
bracket as well or it will rust.
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| The painted pipe |
Once the paint is dry, attach the A-Pillar bracket
to the truck, attach the snorkel to the rubber pipe adapter inside the
fender and the snorkel body to the A-Pillar bracket using the self
tapping hex screws. Finally, install the Safari Snorkel vent and once
it is lined up and oriented correctly, attach using the supplied hose
clamp.
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| Attach the bracket |
I used marine grade black silicon to seal the hole
in the fender. Another, less permanent alternative is to use rubber
trim material to line the hole. This will allow you to easily remove
the snorkel if you ever need too. Note that you will probably have to
enlarge the hole to accommodate the extra thickness of the trim. In
addition, I also placed small rubber O-rings between the A-Pillar
bracket and the A-Pillar. This will provide a water tight seal and will
keep water from leaking into your truck.
All that's left is to run the pipe to your air box.
Since I have an aftermarket K&N filter, I will be making a sealed
enclosure for it and plumbing my snorkel into it later on. For those of
you with a stock air box, you will have to do some modification to it
in order to plumb the snorkel into the air box. It may be possible to
make the bend inside the fender and connect to the factory pipe already
in the side of the engine compartment. Your Tacoma may have more room
inside the fender than mine did.
If you have a fender flare like I do, you will
have to cut it to accommodate the pipe for the snorkel. I marked out
the amount I would need to trim and cut half that. Then, with a die
grinder, I grinded no more than 1/8" at a time and went back and forth
checking the fit with the snorkel so that it would be perfect. Once I
got the fender flare trimmed, I used some rubber trim to go around the
cut so that it would all fit perfectly. This will still give you the
ability to easily remove the fender flare if you need to ever repair it
or replace it.
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| Rubber trim |
Check back in the future for a link to the
follow-on article I'm doing that shows how I made a custom airbox for
the K&N filter and my snorkel.
Contacts (for the Safari Vent)
Safari Snorkel North, Central & South American Enquiry center:
Air Locker Inc.
720 SW 34th Street
Renton Washington 98055-4814
USA
Tel: (425) 264 1391
Fax: (425) 264 1392
Email: sales@arbusa.com
Web site: http://www.arbusa.com
Ryan Trickett
ryan@4wdtoyota.com