Snorkel question

[myquestoyota]

Pardon my ignorance on this issue but when these guys are running their rigs with water over the hood is the air intake to the carb the only issue? What about everything electrical and oil breather stuff?
School me gentlemen.

 

[Dieseler]

If its a diesel you will have less problems than a gasser,no distributor which is what usually fails when wet,alts and starters dont seem to be a big issue.

 

[mailking]

will your fan be slipping, or will it slam and break in the water?

 

[Dieseler]

will your fan be slipping, or will it slam and break in the water?

It will help propel you through the water .
Not a problem normal water crossings are done at a very slow submerge plus it is protected by the shroud.

 

[justbecause]

will your fan be slipping, or will it slam and break in the water?

newer engines with a clutch fan will stop spinning when they encounter resistance, from what i understand that clutch burns up quick though and should be bungied during towing so your fan isnt spinning while the clutch isnt moving

also need to check axle breathers + fuse box + connectors to lights/blinkers/windshield wiper motor/ fuel pump/ taillights.....

 

[73fj40lc]

It will help propel you through the water .
Not a problem normal water crossings are done at a very slow submerge plus it is protected by the shroud.

Taurus electrical fan with manual shut off switch in cab solves these problems. Cut off switch cuts power to the digital fan controller so no shorts or fan running to splash water all over the engine. Fans are good at propelling water into every nook and cranny under your hood.

 

[Brian in Oregon]

Some flexible blade fans can pull themselves forward in water and dig into the back of the radiator.

What I'm looking for is a rubberized cover for an HEI ignition for a SBC.

 

[shelfboy1]

how deep are you going ? other things to consider gas cap and dipstick.axles tranny and t case should be vented .for most water crossings you can remove the belt for the crossing.if you leave the belt on a trash bag tyrapped over the dissy will keep most splashed water out.if you go in over the distributor then you need to do more work.good luck

 

[romey]

i'd suggest silicon spraying either ends of your plug wires, and inside and around the plugs, and around your distributor. works for me.

someone also mentioned puttin a small breather valve/hose for your distributor as well to let any water drain out.

 

[TOBASH]

Toyota manual is very clear... Remove fan and then drive in water.

Personally, I will be swapping over to electric fan, keeping the original in the boot as an emergency item.

Also, one needs to change the axle breathers over, and add hoses up top to prevent water from getting in.

Personally, I am gonna customize, as the axles don't really need to breathe, they just need to vent pressure, or more accurately, vent negative pressure.

Axles with negative pressure suck in water.

Fix is to place an item that holds low positive pressure to the unit and keep it slightly inflated.

I will probably use a low pressure diaghram type device to do this, and just inflate prior to getting wet.

Any pressure from heat will just make the diaghram expand. Any negative pressure will also just make the diaghram move the other way.

Best,

T

 

[justbecause]

Personally, I am gonna customize, as the axles don't really need to breathe, they just need to vent pressure, or more accurately, vent negative pressure.

Axles with negative pressure suck in water.

Fix is to place an item that holds low positive pressure to the unit and keep it slightly inflated.

I will probably use a low pressure diaghram type device to do this, and just inflate prior to getting wet.

Any pressure from heat will just make the diaghram expand. Any negative pressure will also just make the diaghram move the other way.

Best,

T

sounds like voodoo witch magice to me

 

[TOBASH]

sounds like voodoo witch magice to me

Actually the technology is the same as what you use to keep pressure down in your cold water inlet to the hot water heater.

Boat trailers use it too. When you plunge a hot axle into cold water it forms a vacuum and sucks in water and corrodes the inner axle until it all fails. Keep it hopped up with inner pressure and the water can't get in.

So stop saying you want to sing when I am trying to introduce you to a princess with great tracts of land.

Best,

T

 

[mep1811]

Back in the 1980's , I worked in the Bolivian Jungle. (pics on link below) We had a large fleet of Land Cruisers FJ40's,60's,70's,75's. All were bone stock.

I routinely made two to three deep river crossings a day up to hood level. Neat at night as the headlights would be on underwater.

Well, not entirely true. Once in a 40, I had the water up to my seat and in an unloaded 75 pick up the back floated down stream with only the front tires pulling me forward.

There was never a problem related to these deep water crossings. Each time we entered the water slowly and in 4 low.

Just my 2 cents. BTW I have snorkels on both my 40 and 60.

 

[myquestoyota]

Have no idea how deep I will be going I have just always wondered about this when I saw vehicles under water with the only visable mod being the snorkel. Our area frequently floods in the lowlands, I live up on the hill thank you, but I've seen a couple of heeps around that have snorkels and wondered if it was posing or function. The one rig I think has never seena dirt road but the other one looks capable. Not planning any water crossings of any significance but appreciate knowing what I need to think about when it happens. I just might think about a snorkel kit for practical purposes. Thanks

 

[D'Animal]

A snorkel is also used as a cold air intake system.

There is some heat under the hood of the Jeeps since the engines are packed in there pretty tight. Allowing Cold air into the intake system make the rig run better.

Some also use them to extend the life of the air filter. The higher up you draw the air from, the cleaner it is. on some of the logging roads that have Powder for dirt can clog a filter pretty quick.


Not every rig you see with a snorkel is fully modified for deep water.

Other than Duct tape, I see no way around the dipstick sealing area.

 

[myquestoyota]

Okay, I am beginning to understand, what a great source of information this is. Any suggestions as to best/worst snorkel kits? what to look for and what to look out for?

 

[D'Animal]

The biggest problem with snorkels is the restriction in air flow they cause.

The larger diameter have less restriction. The down side is they stick out from the vehicle and hit everything on the trail and bock you view at intersections in town. They can create a Blind Spot.

The normal or smaller ones look cool and follow the body lines but restrict air flow at WOT in low range. The does not happen that much so it can be overlooked. The air restriction going down the freeway at 65mph is not an issue since the air is being forced into the intake at 65pmh.


WOT = Wide Open Throttle