Snorkel on a petrol

[Sats]

Is there any point in fitting a snorkel to a petrol engine? Surely it will die from getting plugs wet before you have intake issues? I don't buy the cooler air nonsense, any possible benefit you get is negated by a longer and awkwardly shaped intake with 90 degree bends. As for dust, well surely that is what you have an air filter for? It looks cool though.

[Mike #1]

Hi Sats
I agree broadly with what you say.
I guess its a belt-and-braces thing.
IMHO a snorkel might be useful when snorkelling. The rest of the arguments
(apologies to those who have one) are useful for justifying the (expensive)
purchase to your wife, and for looking tough when driving around town.
Undoubtedly I would NEVER consider buying a 2nd hand vehicle with a snorkel,
as I figure it just MIGHT have been hammered through africa's backroads and
rivers, and if-so, water might have done longterm damage (diff etc.).
I believe what you say about water in a petrol engine - although it would
prolly drown before the plugs stopped firing. However, it is easy to take
them out and swing the engine to clear the water out of the chambers.
Diesel is another story tho, and water here coulsd wreck an engine. {However
the clogged airfilter and wrecked engine on a taureg a few years ago, argues
against your "airfilter" story. IMHO. A product defect.
Having said that, I have waded, and with care, have survived.
MikE

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[Fanie du Plessis]

I have had the misfortune of drowning my Rangie once without a snorkel, hydraulic lock, wet filter element etc.

Its not just a case of removing the plugs and getting the water out, those plugs get wet again and again from water stil on its way down the engine, how little it may be.

It took almost two hours to get the V8 running on 4 random cylinders in low range to get home.

Cleaning up the rest of the systems running in oil took a whole day, but no snorkel would have prevented water there except if the engine kept going it woul have been out of the water sooner.

So yes its mostly a nice to have until the day you need it, like a safety belt I guess........

[Mike Lauterbach]

There are 2 advantages:  Keeping water out of the air feed, and looking cool. 

As you mention, cooler air is normally negated by friction in the longer route the air has to travel.  Ram effect is non-existent, despite what some want to believe.  The only other possible positive is cleaner air.  But in convoy driving it hardly helps with this, some even claiming that the snorkel sucks more dust here.

I always promised to install one on my donkey, but have not done that (yet?), and in not doing so have not drowned my vehicle - I've kept away from deep water as a result...might have been different if I had one installed.

Cheers
Mike

[bjtu...@gmail.com]

Agree to a certain extent. I don't think a snorkel will keep water out but I think it will reduce the chance of water getting in for a slightly longer time than it would without one.
I also would not trust a snorkel in deep water as the joints along the system are not 100% sealed/air tight anyway.

Fortunately I have not had to do any water crossings in my current Defender...

It does look cool though.

Rgds
BruceT

Sent from my BlackBerry® wireless device

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From: Mike Lauterbach <zs5...@gmail.com>

Sender: overlan...@googlegroups.com

Date: Sat, 18 May 2013 07:51:23 +0200

To: <overlan...@googlegroups.com>

ReplyTo: overlan...@googlegroups.com

Subject: Re: [Overland] Snorkel on a petrol

[Heine De Villiers]

Yeah whateva- but with a snorkel you can do this

http://www.youtube.com/watch?feature=player_embedded&v=DyaRNlKRKbA

[Bertus Visser]

 

On a defender i think the snorkel is good to keep the dust out of the filter. The intake on the side of the fender is no good.

 

The air filter last a bid longer. If you are môre on tar a snorkel is a nice to have.

 

 

 

Bertus

 

[Mike Lauterbach]

Exactly - it kept the water out. 

[bjtu...@gmail.com]

Eish you brave Heine.

Rgds
BruceT

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From: Mike Lauterbach <zs5...@gmail.com>

Sender: overlan...@googlegroups.com

Date: Sat, 18 May 2013 08:38:04 +0200

To: <overlan...@googlegroups.com>

ReplyTo: overlan...@googlegroups.com

Subject: Re: [Overland] Snorkel on a petrol

[Mike #1]

On this note, why don’t manufacturers just have a switch under the bonnet that routes the air intake into the cabin.

That way one can SEE when the water is about to enter the intake.

Switch it back to normal when finished wading.

THAT, I would consider.

MikE

--

[Heine De Villiers]

No brain - no pain .

[Sean Steyn]

Spraying all the electrical bits with Q20 prior to wading works pretty well. Did that with my S3 prior to wading the same spot in the video, without a snorkel.

Sean

On Sat, May 18, 2013 at 6:29 AM, Sats <satsoos...@gmail.com> wrote:

Is there any point in fitting a snorkel to a petrol engine? Surely it will die from getting plugs wet before you have intake issues? I don't buy the cooler air nonsense, any possible benefit you get is negated by a longer and awkwardly shaped intake with 90 degree bends. As for dust, well surely that is what you have an air filter for? It looks cool though.

[Emanuel Berger]

There is an alternative to a snorkel, the horizontal cyclone filter. For our
bus I have bought on from Mercedes for aprox. R 30. He is mounted in the
engine compartment, about 30 cm higher than the original intake manifol. So
I have a small advantage at water crossings. But I have installed it mainly
as a dust collector. Definitely looks not so good as a snorkel but much
easier to install;-)

Greetings
Emanuel

http://nelson2africa.blogspot.ch

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An: overlan...@googlegroups.com
Betreff: [Overland] Snorkel on a petrol

[Sats]

Ok yes but if the intake if the defender was in a better place like against the firewall, you would have been able to do this anyway?

[Pieter Theron]

Does'nt a snorkel look a bit zef to you guys?

Cell +27 83 294 1855

http://www.youtube.com/user/pietertron?view_as=public

www.krugernationalparkbook.co.za

www.linx.co.za/tripreports

[Pieter Theron]

:-)

On Sat, May 18, 2013 at 11:49 AM, Sats <satsoos...@gmail.com> wrote:

--

[ca...@matool.co.za]

What does zef mean?

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From: Pieter Theron <pie...@gmail.com>

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Date: Sat, 18 May 2013 13:37:53 +0200

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Subject: Re: [Overland] Snorkel on a petrol

[Heine De Villiers]

Piele schweet etc

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[Henk Coetzee]

Derived from a Ford Zephyr.

[Henk Coetzee]

Pieter asked: 

> Does'nt a snorkel look a bit zef to you guys?

Not when the water comes up over the bonnet it doesn't :).

[Darryl Lampert]

This would be a bit tricky without a snorkel ;-)

http://youtu.be/EvDXR9RXCCY

[Sats]

Will be tricky with a petrol as well

[Fanie du Plessis]

Just mount the coil on top of the snorkel:-)

[patrick bremner]

iv got a horizobtal cyclonic filter on top of the snorkel. works very well

[Clem Daniel]

Sats,

I have swum my old Discovery in water sufficiently deep for it to be coming over the bonnet. Crossing the Save River one night was one example. It swims fine, provided you do a couple of other things as well in addition to the snorkel. You need to get the electronic ignition system out of the way of the water – I am referring to the coil, module and so forth. You need to seal the distributor cap (something I did by putting a small piece of weatherseal between the cap and the top of the distributor (maybe not necessary on modern designs which are sealed with O rings?). Then in addition, you can, if necessary seal the rubber bungs around the electrical leads where they go into the distributor cap and onto the spark plugs, though I do not think it is really necessary. You can use dielectric grease for that. You within also need to extend your transmission and engine breather pipes to a level where the water cannot get into them. In the case of the transmission breathers I extended these up into the C pillars. On the engine I seem to think that I took these into the cabin air intake spaces but to be honest I would have to go and have a look again to be sure. There are lots of other potential issues with deepwater as well of course, but these were the main ones.

Petrol engined vehicles can be made to swim but it takes more effort than with a diesel as far as I know.

My incentive for fitting a snorkel was when we were driving in Kruger and on a side road had to pass through what appeared to be a long and wide puddle – it was in fact sufficiently deep for the water to start entering the engineer intake – but once you are that far in you are fully committed so I shouted to the driver to open the throttle all the way and the vehicle got out the other end with some coughing and spluttering. When I cleaned out the air intake measuring module I found plenty of brown water in it. Strangely enough though, after some cleaning, it seems still to have worked okay as it is still on the vehicle.

Hope this helps a bit.

Cheers,

Clem

[Clem Daniel]

Mike,

My experience is that the ram effect is their if you turn the air intake forward facing (as the one on my discovery often is) and once you get to a heck of a speed – I am talking like 160 km an hour. Below that, forget it.

[Clem Daniel]

Bruce,

I can tell you first hand that I have been able to cross water depths with my old Discovery that I would never have been able to do without the snorkel. Quite frankly, anything that requires a snorkel to get through is probably a bit of a stupid exercise – but I have done it in the past and who knows, may have to do it again one day. But, I do not think it is a priority requirement on any over landing vehicle.

[Emanuel Berger]

If its on a snorkel. Its propaply a
Vertical Cyclon Filter
Emanuel Berger

www.nelson2africa.blogspot.com

patrick bremner <patrick...@gmail.com> schrieb:

iv got a horizobtal cyclonic filter on top of the snorkel. works very well

On May 18, 2013 10:28 AM, "Emanuel Berger" <emanue...@gmx.ch> wrote:

There is an alternative to a snorkel, the horizontal cyclone filter. For our
bus I have bought on from Mercedes for aprox. R 30. He is mounted in the
engine compartment, about 30 cm higher than the original intake manifol. So
I have a small advantage at water crossings. But I have installed it mainly
as a dust collector. Definitely looks not so good as a snorkel but much
easier to install;-)

Greetings
Emanuel

http://nelson2africa.blogspot.ch

-----Ursprüngliche Nachricht-----
Von: overlan...@googlegroups.com
[mailto:overlan...@googlegroups.com] Im Auftrag von Sats
Gesendet: Samstag, 18. Mai 2013 06:29
An: overlan...@googlegroups.com

Betreff: [Overland] Snorkel on a petrol

[Clem Daniel]

For the record, Mike tells me that I am smoking my socks and ram effect is probably a figment of my imagination. He may well be right as I have nothing but the seat of my pants to go by.

[Heine De Villiers]

A quick Wiki search reveals

Ram-air systems are used on high-performance vehicles

http://en.wikipedia.org/wiki/Ram-air_intake

And I'm pretty sure your landy isn't one of those :-P

On 2013/05/20 14:01, Clem Daniel wrote:

For the record, Mike tells me that I am smoking my socks and ram effect is probably a figment of my imagination. He may well be right as I have nothing but the seat of my pants to go by.

On Sunday, May 19, 2013 2:16:27 PM UTC+2, Clem Daniel wrote:

Mike,

My experience is that the ram effect is their if you turn the air intake forward facing (as the one on my discovery often is) and once you get to a heck of a speed � I am talking like 160 km an hour. Below that, forget it.

On Saturday, May 18, 2013 7:51:23 AM UTC+2, Mike wrote:

There are 2 advantages:� Keeping water out of the air feed, and looking cool.�

As you mention, cooler air is normally negated by friction in the longer route the air has to travel.� Ram effect is non-existent, despite what some want to believe.� The only other possible positive is cleaner air.� But in convoy driving it hardly helps with this, some even claiming that the snorkel sucks more dust here.

�

4x4's and other stuff for sale:
http://www.overland.co.za/phpBB3/viewforum.php?f=2
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[Clem Daniel]

It is all relative. Compared to a 4.2 diesel land cruiser, it is.

[Heine De Villiers]

I have a V6 love

:-P

[Clem Daniel]

Relevance?

[Con de Bruin]

Amen

 

Con