snorkle?? what can't get wet in engine?

kiwiwonder · 07-22-04, 03:44 PM

I have a 3b engine in a 77 fj40 and was wondering what cannot get wet in an engine while doing water crossings?

The Dude · 07-22-04, 06:29 PM

I have had my 3B and my 12H-T totally submerged. They both still ran.

kiwiwonder · 07-22-04, 06:39 PM

so there is no problem with the alternator or anything else electrical in the front, will water not short the battery out?

The Dude · 07-22-04, 06:45 PM

Actually, On my 12H-T the "charge" light did come on briefly. I believe it was due to the belt slipping. On my 3B I disconnected my batteries first.....

Interesting. I wonder what the proper procedure (well the best anyways) is?

DieselROCKS · 07-22-04, 08:29 PM

Doesn't disconnecting the battery while its running burn out the regulator on the overly expensive alternator??

Geoff

s79bj40 · 07-23-04, 12:40 AM

dont disconnect the battery, it should be fine in water, but if you are going deeper than headlights and baffling the radiator isn't enough, you should just remove the fan belt. It stops the fan pulling into the radiator. The field in the alternator should be allright, even covered in water. Other than that, those engines will run fully submerged.

Greg_B · 07-23-04, 12:49 AM

Try this link...

The amazing underwater car...

http://www.geocities.com/Athens/Atla...car/index.html

gb

hj60 · 07-29-04, 03:24 PM

A good diesel engine will run through some very harsh conditions.
We had an air-cooled I-6 diesel at school that ran in 110°F ambient air for hours at a time,
no load, from idle to governor and back, frequent stops and restarts and no oil changes.
Never skipped a beat. Hardly any smoke at startup, except 1st thing in the a.m.
Only real caveats for submerging a diesel are watch your EGTs prior to dunking. The rapid
drop in temperature could warp or even crack the manifold. I hose down alternators while
running at work all the time, with no ill effects. As long as they have sealed bearings and no
pre-existing damage, water will not harm them. The belt will slip and squeal and glaze
slightly. Carry a small brass brush and at the end of the day, run it along the contact surface
of your belts and it'll de-glaze them without harming them. Make sure it's a fine bristle,
though.
If you have a leak-free fuel system, no worries. If you have a leak in the pressure side,
you'll just contaminate the water a bit. If you have a leak in the suction side, you're going
to risk injector nozzle damage. So make sure your fuel lines are good.
That's about it.

ScottsHZJ80 · 03-23-07, 08:37 PM

The main reason for running a snorkel is to stop the thing ingesting water.

The compression in most diesels being relatively high, they will be quite happy trying to compress water. When the water won't compress, things start bending and breaking, like con rods for example.

Getting water in a diesel is great way to ensure you WILL be rebuilding your motor!

A snorkel is a pretty cheap insurance policy.

brownbear · 03-23-07, 09:46 PM

I thought, forgive me if I am wrong......

You idle for a bit on low idle, and let everything cool off, which it will do at idle.

Then keep a pressure wave going in front of you as best you can...

Garry · 03-24-07, 02:46 AM

I've had my rig in some pretty deep water, lapping around the bottom of the front windscreen. (you just have to make sure the windows are wound up or you'll get wet

) The alternator usually stops charging for a moment, but comes right after it dries out

dogboy2 · 03-25-07, 05:16 PM

Quote:

Originally Posted by Greg_B

Try this link...

The amazing underwater car...

http://www.geocities.com/Athens/Atla...car/index.html

gb

no way.... that's AWESOME!!

can't do that in a gasser....

-db-

BlueHZT60 · 03-25-07, 07:25 PM

What can't get wet - the intake. I've had everything else stuck under water - no problems. There was another thread: wet intake = BIG$$$$. You can get around a snorkle 90% of the time by waterproofing the intake and tucking it up high toward the firewall. In No. America - short of ANY TRIP WITH WHATLEY or WAYNE, you really don't need a snorkle. Any trip with them = mandatory

Bob

matt 105 · 03-25-07, 07:46 PM

Ha
A thread brought back from the dead - 2004!!!!
Has someone else got too much time on there hands?
lol
Matt

ScottsHZJ80 · 03-25-07, 08:08 PM

Quote:

Originally Posted by matt 105

Ha
A thread brought back from the dead - 2004!!!!
Has someone else got too much time on there hands?
lol
Matt

Whoops. Guess that was me. I must have stumbled across this while looking for something else and replied without taking any notice of the date.

Another lesson learned by the noob

bigbrowndog · 03-25-07, 10:08 PM

One of the Kiwi Boys posted this a fair while ago. cheers

07-22-04, 03:44 PM	#1
kiwiwonder IH8MUD Junior Join Date: Feb 2004 Posts: 116	snorkle?? what can't get wet in engine? I have a 3b engine in a 77 fj40 and was wondering what cannot get wet in an engine while doing water crossings?

07-22-04, 06:29 PM	#2
The Dude IH8MUD Addict Join Date: Jun 2003 Location: Saskatoon, SK TLCA# 8113 Posts: 911	I have had my 3B and my 12H-T totally submerged. They both still ran. __________________ Brad T 88 HJ61 "Marmaduke " 12H-T, A440, extreme valve body, PI, cable lockers, PTO winch, SOA, 2" body lift, FF, ARP studs, Longfields, 5.29s, 38x14.5R16 Toyo MTs... 78 BJ 40/42/60

07-22-04, 06:45 PM	#4
The Dude IH8MUD Addict Join Date: Jun 2003 Location: Saskatoon, SK TLCA# 8113 Posts: 911	Actually, On my 12H-T the "charge" light did come on briefly. I believe it was due to the belt slipping. On my 3B I disconnected my batteries first..... Interesting. I wonder what the proper procedure (well the best anyways) is? __________________ Brad T 88 HJ61 "Marmaduke " 12H-T, A440, extreme valve body, PI, cable lockers, PTO winch, SOA, 2" body lift, FF, ARP studs, Longfields, 5.29s, 38x14.5R16 Toyo MTs... 78 BJ 40/42/60

07-22-04, 08:29 PM	#5
DieselROCKS IH8MUD Regular Join Date: Jun 2003 Location: Manitoba, Canada Posts: 205	Doesn't disconnecting the battery while its running burn out the regulator on the overly expensive alternator?? Geoff __________________ 81 BJ60 300k kms hibernating for the winter

07-23-04, 12:40 AM	#6
s79bj40 IH8MUD Regular Join Date: Feb 2003 Location: Brisbane Posts: 358	dont disconnect the battery, it should be fine in water, but if you are going deeper than headlights and baffling the radiator isn't enough, you should just remove the fan belt. It stops the fan pulling into the radiator. The field in the alternator should be allright, even covered in water. Other than that, those engines will run fully submerged. __________________ '83Hj47 4.0Id ToyHino '79Bj40 3.0Id ToyHatsu '02STGU 4.2Id-T Patrol

07-22-04, 06:39 PM	#3
kiwiwonder IH8MUD Junior Join Date: Feb 2004 Posts: 116	so there is no problem with the alternator or anything else electrical in the front, will water not short the battery out?

07-23-04, 12:49 AM	#7
Greg_B IH8MUD Lifer Join Date: Mar 2002 TLCA# 7091 Posts: 3,075	Try this link... The amazing underwater car... http://www.geocities.com/Athens/Atla...car/index.html gb

07-29-04, 03:24 PM	#8
hj60 I don't wheel Join Date: Apr 2003 Location: Ahwatukee, Phoenix, AZ, USA TLCA# 11004 Posts: 1,417	A good diesel engine will run through some very harsh conditions. We had an air-cooled I-6 diesel at school that ran in 110°F ambient air for hours at a time, no load, from idle to governor and back, frequent stops and restarts and no oil changes. Never skipped a beat. Hardly any smoke at startup, except 1st thing in the a.m. Only real caveats for submerging a diesel are watch your EGTs prior to dunking. The rapid drop in temperature could warp or even crack the manifold. I hose down alternators while running at work all the time, with no ill effects. As long as they have sealed bearings and no pre-existing damage, water will not harm them. The belt will slip and squeal and glaze slightly. Carry a small brass brush and at the end of the day, run it along the contact surface of your belts and it'll de-glaze them without harming them. Make sure it's a fine bristle, though. If you have a leak-free fuel system, no worries. If you have a leak in the pressure side, you'll just contaminate the water a bit. If you have a leak in the suction side, you're going to risk injector nozzle damage. So make sure your fuel lines are good. That's about it. __________________ Jonathan M. Rundlett <skadalajara@gmail.com> Copper State Cruisers #001 and member of the Happy Hour Gang. '94 80 Commuter Wagon. My other ride's your mom.

03-23-07, 08:37 PM	#9
ScottsHZJ80 IH8MUD Junior Join Date: Feb 2007 Location: Victoria, Australia Posts: 146	The main reason for running a snorkel is to stop the thing ingesting water. The compression in most diesels being relatively high, they will be quite happy trying to compress water. When the water won't compress, things start bending and breaking, like con rods for example. Getting water in a diesel is great way to ensure you WILL be rebuilding your motor! A snorkel is a pretty cheap insurance policy. __________________ '93 HZJ80 Std Wgn, 1HZ, 5 speed manual.

03-23-07, 09:46 PM	#10
brownbear Mod in Hibernation Join Date: Sep 2004 Location: Where diesels purr and turbos whine TLCA# 15584 Posts: 6,183	I thought, forgive me if I am wrong...... You idle for a bit on low idle, and let everything cool off, which it will do at idle. Then keep a pressure wave going in front of you as best you can... __________________ -84 BJ60, Finally on the FN road! -91 FJ80, wife's ride Iron Butt award winner of the Cruise Moab 08 !

03-24-07, 02:46 AM	#11
Garry IH8MUD Junior Join Date: Oct 2006 Location: Timaru, South Canterbury, New Zealand Posts: 123	I've had my rig in some pretty deep water, lapping around the bottom of the front windscreen. (you just have to make sure the windows are wound up or you'll get wet ) The alternator usually stops charging for a moment, but comes right after it dries out __________________ 1984 HJ60 Big Red Wagon!

03-25-07, 07:25 PM	#13
BlueHZT60 IH8MUD Regular Join Date: Apr 2005 Location: SW OR TLCA# Yep Posts: 255	What can't get wet - the intake. I've had everything else stuck under water - no problems. There was another thread: wet intake = BIG$$$$. You can get around a snorkle 90% of the time by waterproofing the intake and tucking it up high toward the firewall. In No. America - short of ANY TRIP WITH WHATLEY or WAYNE, you really don't need a snorkle. Any trip with them = mandatory Bob

03-25-07, 07:46 PM	#14
matt 105 IH8MUD Regular Join Date: Jul 2006 Location: Bowen Basin, QLD Australia Posts: 342	Ha A thread brought back from the dead - 2004!!!! Has someone else got too much time on there hands? lol Matt __________________ ------------------ a white Landcruiser - now with Track Tactical!

03-25-07, 10:08 PM	#16
bigbrowndog IH8MUD Lifer Join Date: Apr 2005 Location: N.Q. australia Posts: 1,283	One of the Kiwi Boys posted this a fair while ago. cheers

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