I figure this answer will vary according to the rig, but at what point do you need a snorkle during a water crossing? I am guessing that as soon as the water is hitting the harmonic balancer, it will fly up into the air cleaner. This is my guess.
How deep a crossing before you need a snorkle?
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It depends on if you are lifted, tire size, and believe it or not current speed and driving skill.
If you can go at the right speed and create a "bow or wake" in front of the vehicle then you can pass in water WAY deeper than you would think.
The stock location actually adds to the LC ability to traverse "deep" water as it is protected bya small pocket of air for at least a little while.
Most of it is technique, however, I would say you could safely go in as deep as your door sills and be fine... if you are not plowing into the water at mach 6.
BTW, I run a snorkel and I dont think I have ever been deep enough to actually rely on it, and I have had water rush into the cab before with 33's and 4" of lift.
Just my .02
Rezarf <><
If you can go at the right speed and create a "bow or wake" in front of the vehicle then you can pass in water WAY deeper than you would think.
The stock location actually adds to the LC ability to traverse "deep" water as it is protected bya small pocket of air for at least a little while.
Most of it is technique, however, I would say you could safely go in as deep as your door sills and be fine... if you are not plowing into the water at mach 6.
BTW, I run a snorkel and I dont think I have ever been deep enough to actually rely on it, and I have had water rush into the cab before with 33's and 4" of lift.
Just my .02
Rezarf <><
lowenbrau
SILVER Star
They do some deep water in Alaska without snorkels. Over the headlights is no problem if you keep you speed right. Gina got this far at ACT 2001 before she stopped. (she missed the turn)
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looks scary AND fun!lowenbrau said:
i think once water hits your dist. you got way bigger problems and given that most if not all air cleaner assemblies are higher then distributors i think its safe to say that... its not just the snorkel that keep your truck running under water... you really gotta water proof everything.
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isnt there some vents on the axles/diffs/etc that have to be relocated to vent above water levels?bandy rooster said:
Good three part writeup here by Mark Whatley, there was also a similar Trails article awhile back. Covers a lot of water crossing issues.
http://www.rockcrawler.com/departments/landcruiser/whatley/jan0198/jan0198.htm
http://www.rockcrawler.com/departments/landcruiser/whatley/jan0198/jan0198.htm
You can just run a breather from your axles up into the engine bay or iinto the cab somewhere if you really wanted. Its a good precaution for keeping water out of your axles.
I have had water cover the hoods of my 72 and my 79. Both times without a snorkle.
key is to keep momentum..
The later fully electronic dizzys were sealed and vented to the cab. water was a non issue
key is to keep momentum..
The later fully electronic dizzys were sealed and vented to the cab. water was a non issue
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Running my '73 FJ40 with the doors off, my indicator was if I could see the transfer shift knob I was good to go.:hillbilly Drove it a bunch of times with water in the cab, that's with extended breathers, distributor sealed, no snorkel, stock air cleaner.
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This is good info, thanks everyone. I do know that other components need to be waterproofed as well. I am no longer in a hurry to adapt a snorkle to my FJ55. I am going to run breathers for the axles and tranny as my first step.
You guys sure go for it with your rigs, that's awesome!!!
You guys sure go for it with your rigs, that's awesome!!!
After breathers I would recommend the later dizzy's from an fj40 or fj60. They are waterproof and electronic so no more points! You will need to track down an ignitor and coil from the same era, and a pushrod cover with the big "dent" in it for the dizzy clearance.
Good Luck!
Rezarf <><
Good Luck!
Rezarf <><
lets see some deep water crossings!!!!
lowenbrau
SILVER Star
bretty said:
The green 40 on this page had no snorkle and was running sprungover on 35s. Still headlight deep.
http://realcruiser.com/act2001/knik/knik.html
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REZARF said:
My pig is a 350 conversion, so I have an HEI distributor up on top. I am impressed by what people are driving through.
My buddy on fordyce (Lets see if I can get the picture to upload).
I was up to my hood ornament with no snorkel, SO on 35's, the river flowing over the tranny hump and out the other side. Shure beats washing it!
It was trippy not being able to hear anything but the river, the only way I knew the motor was running was it still moving forward.
Fordyce ROCKS!
PMK
I was up to my hood ornament with no snorkel, SO on 35's, the river flowing over the tranny hump and out the other side. Shure beats washing it!
It was trippy not being able to hear anything but the river, the only way I knew the motor was running was it still moving forward.
Fordyce ROCKS!
PMK
Adventure Teq
SILVER Star
With breather extensions I had no probs this deep. Traction on the other hand was a problem. 
I gotta get this rig setup there are some sweet clear water hard bottom creeks round here, wanna get it in to the seats.
I gotta get this rig setup there are some sweet clear water hard bottom creeks round here, wanna get it in to the seats.
This is my cruiser sprung over on 37 MTR's, at one point I dropped into a hole with water on the front of the hood and most of the time I had a fountain of water coming in through the tranny shifter hole.
My 1951 Dodge M37 Weapons Carrier has fording controls that turn off the early form of positive crankcase ventilation and instead seal the engine vents up to let piston ring blowby pressurize the engine during fording. The prevents water from entering through imperfect seals and gaskets. There are also fording vent lines lines running to other components as well, including the fuel tank. The gas cap is rotated from vented to sealed prior to fording. The bellhousing and transmission are sealed as a unit, and there is a fording plug that screws into the bottom of the bellhousing prior to fording to prevent water from getting to the clutch or into the transmission. The distributer is totally sealed, as is the starter and generator. The spark plugs, spark plug high tension leads, and all wiring harnesses, switches, plugs and lights are totally waterproof. Fording depth is 42" without the snorkel and exhaust extension, and 84" with, meaning the entire truck can be run underwater. Milspec required these trucks be able to run totally submerged, and tests have proven they can do it for hours at a time, with only the snorkel and exhaust appearing above water, and not needing to have axles and other components disassembled, drained or regreased.
Mark W
Yep, I really don't really care that much I guess.
AKcruzr said:This is my cruiser sprung over on 37 MTR's, at one point I dropped into a hole with water on the front of the hood and most of the time I had a fountain of water coming in through the tranny shifter hole.
That picture reminds me of some of those old photos of the Loch Ness monster. Pat, Have you been Cruisin' aroiund Scotland?
I hereby dub your '60 "Nessie".
Mark...
