Missing air duct by air filter

Adrock
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Missing air duct by air filter

Postby Adrock » Thu Jan 18, 2007 6:45 pm

well. I just pulled the cover from behind the drivers seat off to take a look at how im going to go about changing my air filter. That is when I noticed this
Missing duct.JPG
Missing duct.JPG (604.03 KiB) Viewed 1875 times


One of the air ducts is missing. What part of the process happens before this duct? Is it urgent that I get a new duct right away? I probably will anyways, but just wondering, it seems strange that it is missing.

on second thought, maybe this is a sign that I am to install a snorkel haha.

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Postby Adrock » Thu Jan 18, 2007 7:05 pm

on another note, air filter replacement is a breeze. 2 minutes at the most, except it took me 10 because one of the brackets on the bottom housing was not holding properly when clicked down so I had to bend it to the same shape as the other with some plyers.

next its oil and fuel filter... not so easy unfortunately.

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Postby mitch » Thu Jan 18, 2007 9:33 pm

Yeah that missing hose stumped me too as mine dosn't have one either.. spoke with a Fuso mechanic and he figured thats how its suppost to be! figured it pressurized the chamber you opened behind your drivers seat and pushed air into the airfilter..... he said this was a way not to have the intake suck up debris and clog the airfilter ..... then causing a stall.


Mitch

Anybody have a hose there??

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Postby username » Thu Jan 18, 2007 10:31 pm

yeah, i noticed that on mine too. seems like it must be like that for a reason if they're all that way.

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Postby Breadman » Fri Jan 19, 2007 9:11 am

same as both of mine. comfort in numbers
paul

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Postby Mystery Machine » Fri Jan 19, 2007 9:22 am

Admin update: Mitsubishi fitted a hose there from 1986-1988, then it was deleted for the reasons below. It's a liability.
As already mentioned, that hose is supposed to be missing... :wink:

The pipe at the right of the picture is the cold air feed taken from the front of the motor. It runs along the inside of the drivers wheelarch and exits as shown in the picture.

The intake pipe on the bottom is where this air is then picked up and fed through the filter and into the inlet manifold.

The reason for the gap is that is allows any heavier particles picked up through the air feed pipe to drop out before reaching the air filter. If you were to connect these two pipes, you would find your filter choked in no time at all!!

When I got my motor, the whole of this area was covered in sandy dust! I would hate to think what state the filter would have been in if it had been fed directly through the intake system! :shock:

A snorkel is one route to get around this, but be VERY careful how you direct the intake. One of the guys over here found that his got very quickly clogged with flies when it was facing forward (made the engine really struggle through lack of air!) and when he turned the snorkel head to face the other way, found he lost performance because he wasn't getting enough air flow! :?

I'm taking delivery of another L300 next weekend ( :D :D ) which I will be converting to a 'dedicated' off-roader! (stripped out, packed with kit, full breather and snorkel system etc...)

I'll post pics of my 'alternative' snorkel system when I get it done.....should be quite an interesting option to consider! 8)

Regards,

Bruce.
Last edited by Growlerbearnz on Fri Jul 14, 2017 2:26 pm, edited 1 time in total.
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Postby josh » Fri Jan 19, 2007 1:07 pm

A snorkel is one route to get around this, but be VERY careful how you direct the intake. One of the guys over here found that his got very quickly clogged with flies when it was facing forward (made the engine really struggle through lack of air!) and when he turned the snorkel head to face the other way, found he lost performance because he wasn't getting enough air flow! Confused


Couldn't you face the snorkle forward, but cover the intake with a meshing? I would assume that it wouldn't restrict airflow all that much, but it would keep it clear of flies (if you wiped it down everytime you got in or out of the vehicle).

Josh

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Re: uh oh air duct

Postby FredVenne » Mon Oct 18, 2010 11:49 am

I found the same “missing hose” in mine while opening the panel underneath the driver seats and kinda panic a little bit. Now that I realize that it’s normal, I am still wandering, what if I put a piece of pantie hose and rubber band over the holes. I noticed at the base of the bottom hose, a lot of dirt, small rocks. Wander where this dirt goes... Anyone did this or something similar?
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Re: uh oh air duct

Postby thedjjack » Mon Oct 18, 2010 11:53 am

On my snorkel I am planning to run a Pre-Filter.

Basically an oiled foam filter in the head (ran this before on a Jeep).

Just wash the filter every few days (I was doing Forestry work at the time) and pop it back in. Worked great.

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Re:

Postby pascal » Mon Oct 18, 2010 12:43 pm

Mystery Machine wrote:As already mentioned, that hose is supposed to be missing... :wink:

The pipe in the bottom of the picture is the cold air feed taken from the front of the motor. It runs along the inside of the drivers wheelarch and exits as shown in the picture.

The intake pipe in the top left is where this air is then picked up and fed through the filter and into the inlet manifold.

The reason for the gap is that is allows any heavier particles picked up through the air feed pipe to drop out before reaching the air filter. If you were to connect these two pipes, you would find your filter choked in no time at all!!

When I got my motor, the whole of this area was covered in sandy dust! I would hate to think what state the filter would have been in if it had been fed directly through the intake system! :shock:

A snorkel is one route to get around this, but be VERY careful how you direct the intake. One of the guys over here found that his got very quickly clogged with flies when it was facing forward (made the engine really struggle through lack of air!) and when he turned the snorkel head to face the other way, found he lost performance because he wasn't getting enough air flow! :?

I'm taking delivery of another L300 next weekend ( :D :D ) which I will be converting to a 'dedicated' off-roader! (stripped out, packed with kit, full breather and snorkel system etc...)

I'll post pics of my 'alternative' snorkel system when I get it done.....should be quite an interesting option to consider! 8)

Regards,

Bruce.


snorkel ?? anyone knows where to get a snorkel for Delica 92 super exc..
no road does'nt mean no way

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Re: uh oh air duct

Postby FalcoColumbarius » Mon Oct 18, 2010 3:24 pm

Yes, I do know. Type "snorkel" into the search engine and you will find 27 pages of information regarding this subject. This ought to help you get up to speed on this matter as well as give you some ideas. Hope this helps... smiles.

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Re: uh oh air duct

Postby thedjjack » Mon Oct 18, 2010 5:10 pm

this is an old thread!!! That is a picture of my Delica when Adrock owned it!!!

Adrock you will be happy to know it has a snorkel now!!!

Image


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Re: uh oh air duct

Postby Jordan » Mon Oct 18, 2010 11:44 pm

Great idea with the PVC cleanout on the bottom.

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Re: uh oh air duct

Postby RichD » Tue Oct 19, 2010 10:01 am

Ghetto Snorkel RULES. :-D
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