Snorkels

[Moab]

That one isn't mine sadly. Mine is a work in progress yet. The downside of an 80 year old bike having the air pipes go through the gas tank is it presents a boat load of seams to leak. I have learned all about soldering gas tanks the last month or so. Just about done with it and then red kote the inside, leak test, prime paint and mount on the bike.

Sorry this response is off the original topic.
I’m familiar with the restoration process.
A labor of love to be sure. Good luck!
Enjoy the Gladiator.
On topic: I’m partial to the Hauk item.
It just looks industrial. We’ll see.
The Mrs isn’t sold on it.. yet

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[ksh67]

Yes sorry, you are right. My original question is on topic though, I am curious about how the exhaust side is handled with these snorkels, or are you typically just getting through fast enoug where you are really only worried about the intake end? Something like the Hauk seems to be a good balance between giving you some height yet not slopping up the hood/fender. It looks more like something OEM should look.

Sorry this response is off the original topic.
I’m familiar with the restoration process.
A labor of love to be sure. Good luck!
Enjoy the Gladiator.
On topic: I’m partial to the Hauk item.
It just looks industrial. We’ll see.
The Mrs isn’t sold on it.. yet

 

[Moab]

Yes sorry, you are right. My original question is on topic though, I am curious about how the exhaust side is handled with these snorkels, or are you typically just getting through fast enoug where you are really only worried about the intake end? Something like the Hauk seems to be a good balance between giving you some height yet not slopping up the hood/fender. It looks more like something OEM should look.

Ha, I was apologizing for me heheh.
Most of the Jeeps I’ve seen have just s front snorkel (cool piece,just for show)
I imagine some speed and a decent wake help with exhaust gases staying clear.
However the truly prepared I see run
extensions off the exhaust. Attached to the rear pillars (rollbar) or maybe run flexible metal tubing. I think Monro made long exhaust runs.

 

[bgenlvtex]

Yes sorry, you are right. My original question is on topic though, I am curious about how the exhaust side is handled with these snorkels, or are you typically just getting through fast enoug where you are really only worried about the intake end? Something like the Hauk seems to be a good balance between giving you some height yet not slopping up the hood/fender. It looks more like something OEM should look.

As long as it is running (positive exhaust pressure) and it is for relatively brief periods the exhaust can be submerged.

If it dies however you will have a real problem. Additional exhaust back-pressure from being submerged will ultimately stall the engine , always best to keep engine RPM up to keep exhaust pressure on the positive side.

Crossing any water more than a foot or so deep can lead to serious shit, swiftly moving water will take a vehicle at much less depth than you would think. Current and buoyancy can have you in a serious position fast.

All of that said, I'm liking that Hauk unit.

 

[Ole Cowboy]

What do you guys do for the exhaust? The river fording in a jeep is new to me but not cycles. I'm working on a WW2 German R75 clone bike, the exhaust is mounted above the rear wheel height and the air filter sits on top of the gas tank like this. In order for the engine to work right don't both ends of the system have to be open?

Cool bike and great work on your part.

Because it is a motorcycle you are going to want to keep that exhaust out of the water as much as you air intake. I will assume it is a 4 cycle and a 1 or 2 cyl if so you can experience water ingestion from the exhaust pipe. Short pipes and few cyl can create a suction effect at the exhaust pipe, this is normal on 4 cycle engine, it occurs in the overlap when both the intake and exhaust valves are opening and closing.

As you have noted the bike is not suitable for very deep water...

 

[Progunz]

Wait, they made a Wrangler-esque truck that is fording depth was based on its electronics?!?!? What? My celphone can survive at 6 ft for 30 minutes and I personally put di-electric grease on all electrical ends for the systems on my jet ski for submersion so that seems like kind of a cop out.

I believe the reason for the 30” fording depth is the catalytic converters. They operate at about 1800*F. Submerge them in cold water at that temp and you will most likely have a very expensive emissions control system problem, complete with CEL and drivability issues.

 

[Mark Doiron]

Can't speak to the JT: Mine is en route to me right now, in fact. But can discuss fording in my '07 JK. The 30 inch depth is driven by several things. Lifting a vehicle and installing larger tires pushes that up for electronics and air intake. It doesn't for the diff/TC/trans breather lines, though. All of these are easily extended to the engine air intake with one exception: A manual transmission (which is different on the JK than JT). If you have a snorkel, than these are all protected by being plumbed to the air intake (except that's not easily done for the JK MT). An engine fan off switch can stop splashing that could end up on electronics. Dielectric grease is your friend on your spark plug wires. Door sill guards will allow slow seepage of water into the passenger compartment--big danger there is if you stall, you're taking on water, albeit slowly. Old drain seals will, too. You may want to replace them every few years if you ford regularly. Or maybe just seal them with RTV.

Someone mentioned catalytic converters: I did have to replace mine. But, with 267,000 miles on my Jeep, much of it on washboard roads, I attribute that to normal wear and tear, not water damage. It was on the Dalton Highway that they first started acting up--at about 200,000 miles. That is a very rough track.

Check fluids after ford. If contaminated, replace ASAP. I've done a couple dozen deeper river fords and never had fluid contamination--even with an unprotected manual transmission. It pays to set on the river bank 10-15 minutes and let things cool down. Especially lights with glass lenses. They can crack when hit by cold water.

I find the biggest advantage of a snorkel is the confidence you have to not hydrolock your engine. You'll usually be asked to go first in a group where no one else has a snorkel, LOL. That doesn't remove the need for safe procedures--you don't want to get stuck in muck and watch your Jeep take on water as folks try to make a recovery.

Here's a video of a ford on the Mojave River, typical of various ones I've done around North America. Note that one guy doesn't have a snorkel. Skip to 10:35 ...

 

[bairdy380]

Think it has been generally discussed here in a round about fashion....but a snorkle does not make your vehicle a submarine...most air boxes have a breather or relief nipple on them anyway...so if you sink to that level, it's generally going to be taking some water anyway.
Priority before air intake is your diff and gearbox breathers...that's where your temp differential is going to be sucking the cold water into hot places...and mixing that oil and water is not a good thing...it's generally a very easy job to relocate and plumb breathers up into the engine bay or similar. Off the top of my head I'm running 4 breathers for various parts in my older hilux.
There are a couple of schools of thought on snorkles...some say it increase the air ram effect which is meant to be beneficial...I'm not so sure.
The main reason for snorkle here is actually for dust on outback roads, get the intake up a bit higher and "try" to get a little bit cleaner air.
But....we do like to think they make our rigs submarines with an epic pic of just a tiny bit of windscreen and a snorkle top showing....

 

[TrailHiker]

I agree, the JT and JL snorkels are primarily for dust, not water fording. I see some desert rat friends that use a snorkel for dust control to keep the air filter a little cleaner, and get cooler outside air, in warm temp. areas.
Cheers

 

[MrJeep]

I believe the reason for the 30” fording depth is the catalytic converters. They operate at about 1800*F. Submerge them in cold water at that temp and you will most likely have a very expensive emissions control system problem, complete with CEL and drivability issues.

From experience, that's not an issue. Among other examples, I floated my '99 TJ when it was almost brand new (doors and tailgate sealed so well the floatation lifted the rear axle off the bottom!) I never had one code related to the cat in 100k miles. Plus, the cats are lower than 30" on just about every Jeep.

I think the 30" is somewhat arbitrary and decided less by some combination of engineering and marketing. They had to put a number on it so they put a relatively safe for the equipment but still impressive number on it. It's just like everything else, there is a factor of safety built in and it depends on conditions. Like you can load 2,000 into the back of the JT and go a few miles from home depot even though it says 1600# is the limit. Along these lines.

Edit: Extreme example of floating the back:

 

[ZroCool]

oooh yes yes. I agree. I like that one. Just not sure if it will with the genesis dual battery kit.

It won't, already asked Genesis Offroad....

 

[MotoBrad]

I wish AEV would release an availability timeline for their snorkel. Inalsonhavent seen the ARB option anywhere either. I want to like the Mopar one for warranty purposes, but it sits so far from the body. It kind of looks a little funny to me. But I'm not sure

 

[Godfadr]

I am waiting for this one to come out (Rugged Ridge). Low and high profile swappable....

https://www.quadratec.com/p/rugged-...ladiator-jt/hi-low-mount-snorkel-system-jl-jt

 

[SleepyJeep]

I am waiting for this one to come out (Rugged Ridge). Low and high profile swappable....

https://www.quadratec.com/p/rugged-...ladiator-jt/hi-low-mount-snorkel-system-jl-jt

Yeah I was gonna say the Faux one is nice but Rugged Ridge hit it out of the park with that Snorkel - it is a really clean look. I made up my mind to go with Rugged Ridge Snorkel

 

[MotoBrad]

Yeah I was gonna say the Faux one is nice but Rugged Ridge hit it out of the park with that Snorkel - it is a really clean look. I made up my mind to go with Rugged Ridge Snorkel

It's nice that there is no cutting, that's a huge bonus. But the piping itself looks small and restrictive to me. It cant possibly flow as much as the Mopar one.

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