Air Filters

Submitted: Friday, Dec 08, 2006 at 10:49
ThreadID: 40164 Views:2917 Replies:11 FollowUps:15
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I wonder how often people check there air filters??? ........ After my recent Mt Mee run which had its fair share of DUST .......... the following day I opted to have a bit of a look over the vehicle and a clean (outside). Will take a bit to do the inside next time put up windows and air con :) Full service next week :)

Anyway I took the air filter out and its was very dirty to say the least. A tap and a fair dust cloud appeared so in goes a new one.

When I did the Cape run I had 2 spares with me and I changed once may not have been required but I figured clean air is better than dirty air. The roads were very dusty and I kept about 1/2 a k behind the vehicle in front to keep out of the dust clouds.
How often do you check your air filters? What filters do you use?l. I use valvoline (spelling) are there better types. I run a snokel, maybe I could also rotate the head to face the rear to also cut down on the dust intake.

Thinking out aloud

Brian

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Reply By: T-Ribby - Friday, Dec 08, 2006 at 11:09

Friday, Dec 08, 2006 at 11:09
On the subject of cleaning filters on the road, neither of my two 12v compressors generate
enough air pressure to give the filter a good blowthrough unless I could fit some kind of reduction nozzle at the business end. Is there such an attachment?. My compressors
are the screw on kind.
thanks
T.R.
AnswerID: 209260

Follow Up By: Willem - Friday, Dec 08, 2006 at 13:29

Friday, Dec 08, 2006 at 13:29
T-Ribby

For a reduction nozzle use a tubeless tyre valve. Cut the rubber bit off the end. It does create a better 'blow'....:-D

Cheers
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FollowupID: 469272

Follow Up By: T-Ribby - Friday, Dec 08, 2006 at 15:44

Friday, Dec 08, 2006 at 15:44
Thanks Willem - it works !. I never thought of that.
Remind me to shout you a rum in the Birdsville pub if you happen to be aroundabout
between the 23 - 27 May next year.

Terry R.
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FollowupID: 469278

Follow Up By: Member - Glenn D (NSW) - Friday, Dec 08, 2006 at 16:16

Friday, Dec 08, 2006 at 16:16
T Ribby

If your air compressor has some sort of positive attachment to valve ( mine is threaded but not sure about all).
And a connector at the compressor end to disconnect the hose .

You can buy a 'pem' gun from an auto shop ( this has a nozzle to direct the air flow and a trigger to regulate it ) , match the male fitting on the compressor, if you connect the pem gun to one end of the hose and the other end to a tyre you can use the tyre as an air reservoir.

Didnt think this up but works well , although takes up about 100 times more room than a modified tyre valve.

Glenn.
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FollowupID: 469284

Follow Up By: T-Ribby - Friday, Dec 08, 2006 at 17:23

Friday, Dec 08, 2006 at 17:23
I never thought of that either - thanks
Hoses on both compressors are removable plus I have a 55cm pump hose lock with a coarse
male thread at the other end. If any of these fits a pem gun them I'm home and hosed (excuse the pun) plus Willems tubeless valve reductor.

T.R.
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FollowupID: 469297

Follow Up By: Member - DOZER- Saturday, Dec 09, 2006 at 08:39

Saturday, Dec 09, 2006 at 08:39
Slightly OT but a whole standard rubber tyre valve with a valve remover screwed on the end of it makes for a good valve remover tool (and a good spare :@)
I use Unifilter oiled filters, and keep a clean outer band in a ziplock bag, which can be swapped mid trip, and removed put back in the bag for Ron (later-ron)
These filters are more work, but let past less fine dust if they are maintained correctly...and thats whats important....fine dust wears motors real quick.
If you do use compressed air to blow out the filter, make sure you blow it the right way one last time b4 reinstall, and you will be agast at the amount of dust that would have been drawn in on startup.
The best paper filter is a washable one (toyota factory ones are, where as ryco are not...) you tap it on the ground, hose it out and put it on the line to dry :@)
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FollowupID: 469409

Reply By: 3.0turbob - Friday, Dec 08, 2006 at 12:32

Friday, Dec 08, 2006 at 12:32
I check mine regularly, and change it 2-3 times a year. Maybe overkill for some, but at around $30 (genuine Nissan) it's not too expensive to have clean air going into the engine.

Rob
AnswerID: 209268

Reply By: Member - MUZBRY (VIC) - Friday, Dec 08, 2006 at 12:40

Friday, Dec 08, 2006 at 12:40
Gday
At my last job we changed the air filters on our machines at lunch time and at the end of the day ready for the morning shift,,,but that was only when it was real dusty,,,other wise it was only at lunch time........
Muzbry
Great place to be Mt Blue Rag 27/12/2012

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AnswerID: 209272

Reply By: Willem - Friday, Dec 08, 2006 at 13:31

Friday, Dec 08, 2006 at 13:31
I check my air filter every 5000km with the oil change. If I have been in a lot of dust I will check it when I feel it is necessary.

Cheers
AnswerID: 209285

Reply By: snow - Friday, Dec 08, 2006 at 14:02

Friday, Dec 08, 2006 at 14:02
As with Willem, I check at 5K service or as neccessary depending upon conditions in which I have been driving.
AnswerID: 209289

Reply By: Trevor R (QLD) - Friday, Dec 08, 2006 at 14:29

Friday, Dec 08, 2006 at 14:29
Hi Brian,

I check air filter after every foray, cause I am usually tail end charlie and see all the dust. It is also checked and cleaned every 5000km as part of the service when oil and oil filters are also changed. With the k's I do this generally means at least one inspection and clean every two weeks.

Good to see you made it to one of the gatherings, Mt Mee is a great place, I only hope Andrew took it easy on you as one track, he and I found, can get nasty up that way.

Cheers Trevor.
AnswerID: 209291

Follow Up By: Member - Brian H (QLD) - Friday, Dec 08, 2006 at 15:52

Friday, Dec 08, 2006 at 15:52
Andrew was great ........ it was an easy going and relaxed day. I took it as a learning day and I am still learning what I can do and the capabilities of my vehicle.

In fact everyone on the day were great. The tracks were good and low range was engaged a number of times.

Brian
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Reply By: Member - Brian H (QLD) - Friday, Dec 08, 2006 at 16:09

Friday, Dec 08, 2006 at 16:09
I went and checked my filter out I have never considered using a blower to clean my filter just toss away and start again. So went and checked mine and was interesting to see that the only dirty area was on the outside of the filter and was very clean on the inside.

So ............. when is the filter classed as dirty ???

I will also say I always change mine every 10000 anyway if on the black top but checked every 5000 otherwise.

Oil and fuel filters are changed every 5000k. My air filters are $60.00 Super Cheap a shot.

OHHHHHHHHHHHHHH bugger now that realling HURTS Genuine holden air filters 44.75 even if GST is added still way cheaper.

Need rum now may TWO ......... OH you have no idea how much that hurts ...... lessen learnt

Brian

AnswerID: 209317

Follow Up By: Member - Toytruck (SA) - Friday, Dec 08, 2006 at 19:55

Friday, Dec 08, 2006 at 19:55
Brian H and Trevor R,
do you really change oild filters at 5k???? Cool with the air filters depending on circumstances but 5k for oil filters!!! I personally rekon that's a tiny overkill and I do mean tiny. I change my oil every 5k with my usual service but I rekon the oil filter should last at least 10k. There aint that much crap in your oil system.....usually.

But like others have said, it don't cost much.

Toytruck
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Follow Up By: Ron George - Friday, Dec 08, 2006 at 21:44

Friday, Dec 08, 2006 at 21:44
Brian. If you can get yourself a K&N brand... The initial price is a bit exy... but they are totally serviceable... Wash em out then re oil em!!! I looked after properly they last for donkeys... They leave standard paper elements for dead, you might even notice a slight improvement in eng performance as they are a lot less restrictive.
Cheers. RG.

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FollowupID: 469357

Follow Up By: Trevor R (QLD) - Friday, Dec 08, 2006 at 22:14

Friday, Dec 08, 2006 at 22:14
Toytruck,

Absolutely change my oil filters every 5k. I have even made up extra pages (same as in genuine log book) and my mechanic is still stamping the services at 285000km. Maybe it is a little over the top, but only time will tell if it works out cheaper in the long run. If I am still going a couple of hundred thousand longer than others with the same motor then I will consider it cheap. Often my oil and filter changes happen more than once a month. Have often thought of an oil bypass filtration system but haven't got that far yet.

I also tow and work my vehicle quite hard, so it just seems right to do it this way. Your log book will suggest this under "extreme" conditions if your's is turboed.

Cheers Trevor.
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FollowupID: 469361

Follow Up By: Member - Brian H (QLD) - Friday, Dec 08, 2006 at 23:51

Friday, Dec 08, 2006 at 23:51
Yep I change my oil filters at 5000 maybe not as strict on the fuel filter. Maybe an over kill but I feel better for it :)

Brian
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FollowupID: 469384

Follow Up By: Member - Toytruck (SA) - Sunday, Dec 10, 2006 at 09:35

Sunday, Dec 10, 2006 at 09:35
Hey I'm with you guys, certainly carnt do any harm. I do my oil every 5k but have been leaving my oild filters to 10k, but having said that, woith work the way it has been for some years not a lot of my trips are on the black top with a weekend stint here and there.

Toytruck
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FollowupID: 469619

Reply By: Member - Phil G (SA) - Friday, Dec 08, 2006 at 16:43

Friday, Dec 08, 2006 at 16:43
I guess you've been bitten by the "supercheap" prices. I buy all genuine filters for our vehicles and many of them are cheaper from the dealer than the aftermarket ones.

But the genuine Toyota filters are washable. I have two filters and interchange them. So one gets washed and sits in the shed to dry off while the other one goes in to service.
Don't know whether your genuine Rodeo filters are washable.
AnswerID: 209325

Follow Up By: Member - Brian H (QLD) - Friday, Dec 08, 2006 at 23:48

Friday, Dec 08, 2006 at 23:48
Don't know about the bitten bug ..................... asumption more likely, I mean a genuine lockable fuel cap for my rodeo is $238.00 so why should I figure an air filter was cheaper as genuine. To be honest I only checked it out becasue someone earlier on this thread said they used genuine filters for there particular vehicle, so figured i'd get a price.

Super cheap oil and fuel filters are cheaper ..... I use valvoline for all my filters but will check K&N as well.

Not sure about washable but will get the blower out :)

Brian
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FollowupID: 469383

Reply By: T-Ribby - Friday, Dec 08, 2006 at 17:44

Friday, Dec 08, 2006 at 17:44
I found two websites that have washable filters for what it's worth.
www.axtturbo.com.au/KNfilt.html
www.simota.com.au/

T.R.
AnswerID: 209341

Reply By: OldMike2 - Friday, Dec 08, 2006 at 18:20

Friday, Dec 08, 2006 at 18:20
Having operated various vehicles and machinery in clouds of talc like dust, all the above are worthy suggestions, but PLEASE be carefull to make sure the seals at BOTH ends of the element are clean and seat onto clean surfaces. Nothing so sure to destroy an engine than a non sealing filter seal. Also be carefull when using air to blow a paper element clean. They are designed to have large volumes of air pass through at low pressure, not low volumes at high pressure. It is very easy to blow pin hole ruptures in a paper element and allow dust through. Most of our elements were double, with a small element inside the larger one. Never remove the inner element. Donaldson brand.
I would not recommend cleaning a paper element anyway. Replace it if it is choked. this may mean carrying a couple of spares.

Another way to put pin hole ruptures in a paper element is to bang it against a tyre etc. DON'T do that either

Only my experience; its your motor not mine.

Mike
AnswerID: 209352

Follow Up By: rodeonut - Friday, Dec 08, 2006 at 23:23

Friday, Dec 08, 2006 at 23:23
AS a plant Mechanic, have discussed this subject with donaldson and Fleetgaurd and the recomendations are to NEVER blow an air filter out with compressed air because as oldmike2 said, you can blow a pin hole in the element that you wont be able to see and can be life threatening for the engine. Donaldson also state and recomend that a partially blocked air filter provides better filtration then a new filter because the micron rating is lowered with a part blocked filter.
I have found the best way to tell when to change is with an air restriction indicater as used on trucks and earthmoving equipment because the more you remove the filter to check for cleanliness the more chance you have of dirt and dust entering the intake and dusting the engine unintentially.
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FollowupID: 469377

Follow Up By: 666toy - Friday, Dec 08, 2006 at 23:37

Friday, Dec 08, 2006 at 23:37
As a diesel mechanic i think it is fine to blow your air cleaners out. Most machinery places blow the outer cleaners out at least 3 times before replacing.
Work air from the inside to the outer . Never the reverse
Bloody hell if you changed the air cleaner every time they got dusty on our d11 you would be up for a fortune $300 a pop or more! & sometimes when working in ash that would be at least once every second day.
Do not use foam replacement filters off road i have seen a lot of motors dusted because of these..
Stick with paper . Valvoline filters are as good as any.
Tapping is fine as long as you use the palm of your hand & do not bend the cage at all (use this method only if your stuck because it takes a while) just be gentile.
If your filters are cheep ignore all the latter & just check upper & lower seals.
Personally i replace my air cleaner after 10,000 or 5000 if it is real dusty (in those situations i use the tapping method as needed up to 5000klm)....666TOY
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FollowupID: 469382

Follow Up By: Member - Brian H (QLD) - Saturday, Dec 09, 2006 at 00:11

Saturday, Dec 09, 2006 at 00:11
Thanks rodeonut now i'm not sure if I'm not better off leaving my filter for a bit longer LOL ..... I will take a photo and get an opinion on my filter.

My use is mostly just city stuff so maybe i'm doing a major overkill with the filter.

Brian

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FollowupID: 469385

Reply By: Bilbo - Sunday, Dec 10, 2006 at 15:41

Sunday, Dec 10, 2006 at 15:41
I spend a lot of time out bush, most of the winters in fact, on tracks, cross country work etc.

I pull the air filter every 7 days - and its' bloody filthy!! That's only about 300 kms of driving.

I tap the crap out by gently dropping it on the bullbar. It's amazing how much dust and grit comes out of it.

In the city, I look at it and change it when it looks dirty - about every 10,000 kms.

I blow it out with compressed air, inside to outside - gently, more of a good draft than a high pressure blow.

After doing this for 3 inspections, blow outs and refits, I put a new one in.

When I was a truck mechanic the boss woulda killed me if I put a new air filter in at every service - unless it was an "outsider job" and not one of our own trucks ;)

Bilbo

Bilbo
AnswerID: 209605

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