Air filters

[picko]

Howdy all,

I Know this is going to sound strange but here goes!

Ive got 4.2 diesel GQ 1990 model and was looking into doing a service on it as you do!
And notice one thing strange ive only got one filter ontop off the engine, sure there a pipe leading down to a second air pod which mounts directly to the side guard, but there no air filter in it. Its one complete unit.
Im confussed because all the filter kits ive seen have two filters in them?

Can anyone helpme?

Thanks
Ben.

[bogged]

And notice one thing strange ive only got one filter ontop off the engine,

The large oval one. Main filter.

sure there a pipe leading down to a second air pod which mounts directly to the side guard, but there no air filter in it. Its one complete unit.

Thats the precleaner. Not required, remove the box and all, and breathes better.

Im confussed because all the filter kits ive seen have two filters in them?

Yup.

Can anyone helpme?

Depends on whats wrong with you, try Dr Grimace.. hes a specalist.

[mkpatrol]

Thats the precleaner. Not required, remove the box and all, and breathes better.

.

If its not required, why is it there in the first place?

Picko

If you are looking to keep it standard then place a filter in there. The oval filter will hardly get dirty if the pre claner is fitted. Nissan designed it this way to remove most of the dust before it gets to the main filter. Most 4WD,s had a similar system up until recently.

Any engine hates dust, espcially deisels & if you happen to be driving on a lot of dusty roads then you need all the protection you can get.

On a standard engine you really wont notice any real difference in power but your engine will last longer.

Thats why they do the kilometer,s they do

[bogged]

Thats the precleaner. Not required, remove the box and all, and breathes better.

.

If its not required, why is it there in the first place?

why do 4wds not come with snorkels from the factory?

Check the outlet size on the precleaner box, its 1/4 the size of the inlet.

[mkpatrol]

Thats the precleaner. Not required, remove the box and all, and breathes better.

.

If its not required, why is it there in the first place?

why do 4wds not come with snorkels from the factory?

Check the outlet size on the precleaner box, its 1/4 the size of the inlet.

Because a snokel is not integral part of the operation of the vehicle

[bogged]

Because a snokel is not integral part of the operation of the vehicle

Offroad it is. which is where 4wds are designed for.

[mkpatrol]

Because a snokel is not integral part of the operation of the vehicle

Offroad it is. which is where 4wds are designed for.

Mine runs ok offroad without one

[rOd]

Why do 4wds not come with snorkels from the factory?

Because they can make more money from you by selling it as an extra...

[phippsey]

Because why would you take a 4WD off road??

Clearly they're designed for picking up the kids from soccer - sorry I mean "football"

[rick130]

and speaking of air cleaners, checking the GU TD42T one yesterday, I found that one of the farking seals not sealing and by-passing dust in a couple of spots, and the damn thing coming unstuck from the metal endcap.

What brand you ask ??

Frigging Ryco.

[bogged]

Because a snokel is not integral part of the operation of the vehicle

Offroad it is. which is where 4wds are designed for.

Mine runs ok offroad without one

mine runs ok offroad without the precleaner

[bazzle]

There are TWO types of precleaner.
Early ones have a paper filter and a small outlet.
Later and petrol have an in line cyclonic type (3" in and out) NO filter

Works OK with out filter in the early ones.

Bazzle

[mkpatrol]

Because a snokel is not integral part of the operation of the vehicle

Offroad it is. which is where 4wds are designed for.

Mine runs ok offroad without one

mine runs ok offroad without the precleaner

Until it is re-honed in a vertical direction by all the dust.

[bogged]

Because a snokel is not integral part of the operation of the vehicle

Offroad it is. which is where 4wds are designed for.

Mine runs ok offroad without one

mine runs ok offroad without the precleaner

Until it is re-honed in a vertical direction by all the dust.

same deal with the snorkel when it takes a Cookie full of water while being used offroad.

[mkpatrol]

Offroad it is. which is where 4wds are designed for.

Mine runs ok offroad without one

mine runs ok offroad without the precleaner

Until it is re-honed in a vertical direction by all the dust.

same deal with the snorkel when it takes a ***** full of water while being used offroad.

You really have no idea do you???

[bogged]

Mine runs ok offroad without one

mine runs ok offroad without the precleaner

Until it is re-honed in a vertical direction by all the dust.

same deal with the snorkel when it takes a ***** full of water while being used offroad.

You really have no idea do you???

glass houses?

[fnqcairns]

Ben I was confused too, I have only had mine 3 months and everything I read related to a different precleaner with an element. If you pull it out there is certainly no element to service only a rubber flap toward the bottom front middle that needs to be squeezed every now and then.
Mine had not been done for who know how long and necessitated pulling the whole unit as the dust,sticks bugs etc had formed a thick blockage up into the unit that wouldn't clear. So I suspect they do actually work at saving money on element replacements.

cheers fnq