Let's discuss the dust pattern in this air filter pic - Yamaha Grizzly ATV Forum
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post #1 of 34 Old 10-12-2016, 11:10 PM Thread Starter
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Let's discuss the dust pattern in this air filter pic



When I saw the dust on the intake, and saw that the donut was dry, I assumed that dust either got past the donut, which is not pushed up against the airbox very well, or got through the donut which was not lubed.

But looking at this photo again, I see some dust on the air filter holder, between the screen and the donut. It seems to me that any dust that came in through or past the donut would have then proceeded on into the engine, and therefore would NOT have gone against the air flow and settled on the inside of the holder.

Therefore I wonder if the stock filter, with the stock lube on it, wasn't sealed up against the holder or didn't stop the dust from coming through it.

In all of my rides since then, I have been in front and so there has not been any opportunity to find out if it is still letting dust in.

Your thoughts?

2016 Grizzly 700 EPS SE Carbon Metallic
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post #2 of 34 Old 10-13-2016, 06:41 AM
 
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Scoundrel..Thanks for starting this thread.

I posted in another thread that I have been greasing the foam gasket on the 660 and 450 for years.
I grease the gasket on the Kodiak now. I also noticed that a shim of some sort could be install between the filter and the backside of the airbox to compress the filter gasket more.
I haven't looked into a shim yet. It could be plywood, hardboard (Masonite). A piece of acrylic or aluminum would be much better.
Best would be for Yamaha to redesign the airbox.

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post #3 of 34 Old 10-13-2016, 07:55 AM
 
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If the dust was getting in at the dry foam seal then it would have to flow towards the intake opening and that is exactly what it looks like.

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post #4 of 34 Old 10-13-2016, 10:22 AM
 
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There are "open cell" and "closed cell" foams.

Closed cell foam does not allow air flow.

Also, certain foams and adhesives are not petroleum tolerant.

Is there a way to test this ? I dunno.
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post #5 of 34 Old 10-13-2016, 10:56 AM
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Is the running recommendation to oil that dry foam element? With say No-Toil?
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post #6 of 34 Old 10-13-2016, 11:36 AM Thread Starter
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Rollin, you are right. I forgot about the fact that the intake sticks out into the filter cylinder a little so the dust would flow back across the holder to get to the intake opening. Thank you.

Oli, someone did mention in another thread that Yamaha told them they could oil that donut with a non-petroleum substance such as no toil. The concern was that oiling that donut would break down the adhesive connecting it to the holder.

JCat, that is a good point about the closed cell foam. I don't know whether this foam is open or closed. It seems like a no-brainer that it should be closed and if that's the case then putting a layer of silicone grease on it and making sure it is pushed tightly against the front of the air box should be enough but until I know that for sure I'm going to keep using no toil. That stuff is pretty sticky and should seal it up well.

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26" ITP Blackwater Evo Tires on SE wheels.

2015 Grizzly 700 EPS SE Silver
Iron Baltic Skid Plate Kit.
Wheels: Douglas Rattlesnake (machined outer)
Tires: 26x9x12 Sedona Rip Saw

2007 Grizzly 700 EPS (Deep Purplish Blue)
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post #7 of 34 Old 10-13-2016, 02:51 PM
 
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That gaskets appears to be open cell foam. On the 450 and 660 it was closed.
I use high temp waterproof wheel bearing. Has never harmed the gaskets.

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Hers 16 Kodiak EPS 700
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STI HD1 Wheels

05 camo 660
KN filter w/outerwear
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post #8 of 34 Old 10-13-2016, 03:44 PM
 
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I'm with reogem, that's open cell.
No toil also makes a grease that's meant for this exact purpose. It used to harden up, but they have fixed that, the revised product is good. I bought a no toil maintenance kit (honda branded) that came with the grease, cleaner, and oil.

Anyone have dimensions for the shim idea?

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post #9 of 34 Old 10-13-2016, 03:52 PM Thread Starter
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Quote:
Originally Posted by whiskeymike View Post
I'm with reogem, that's open cell.
No toil also makes a grease that's meant for this exact purpose. It used to harden up, but they have fixed that, the revised product is good. I bought a no toil maintenance kit (honda branded) that came with the grease, cleaner, and oil.

Anyone have dimensions for the shim idea?
Thanks for the heads up on that. Here's a product link:
https://www.amazon.com/No-Toil-Rim-G.../dp/B001AWFO76

Next I will try and find out if this can be applied to the foam ring after it already has some No-Toil on it. Because slapping some of this stuff on the surface of the ring won't help if it is open cell and the dust can pass through it. I suppose I could slather this stuff all around the edge of the ring as well as the face.

Man, I am tempted to cut out a ring of some sort of compressible foam rubber material that definitely would not pass air, replace the donut with it, and then grease that.

I wish I could buy the air filter holder. Don't understand why there is not a separate part number for that. That way I could buy an extra to experiment on.

2016 Grizzly 700 EPS SE Carbon Metallic
Heat Demon heated grips/thumb warmer.
26" ITP Blackwater Evo Tires on SE wheels.

2015 Grizzly 700 EPS SE Silver
Iron Baltic Skid Plate Kit.
Wheels: Douglas Rattlesnake (machined outer)
Tires: 26x9x12 Sedona Rip Saw

2007 Grizzly 700 EPS (Deep Purplish Blue)
1.5mm shim and purple spring

2007 Grizzly 700 EPS (Special Edition Silver) [Sold]

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post #10 of 34 Old 10-13-2016, 04:03 PM
 
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Neoprene rubber foam would work great.

YACC #44

'13 camo 550-SOLD

'15 700 SE-

-27"bearclaw HTR's/STI beadlocks
-2" snorkels/EHS fuel cont./extended. batt. cables/exh. tip OR barkers
-rox setup
-Switch panel/voltmeter/temp gauge/20"light bar/eagle eye rear lights/led TL panel w/ flash module
-2x pelican 1200/2x pelican 1400 cases
-viper max 3500#/1/4" amsteel blue rope
-ODI rogue
-DIY 1/4" skids/bumper repl.
-machined sheave 3.13:1 ratio, cut camplate
-blocked A.I.S.
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post #11 of 34 Old 10-13-2016, 04:33 PM
 
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Quote:
Originally Posted by whiskeymike View Post
Neoprene rubber foam would work great.
This is what I was thinking too, I'll bet one could from something else that would work well...

Has anyone found an aftermarket filter that replaces the goofy element carrier and gasket? I've seen some that are universal filters with a band clamp to secure it but there isn't really a good mounting flange to secure it to.
I just received the Uni filter designed for this machine but it uses the same carrier as stock :-(

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post #12 of 34 Old 10-13-2016, 04:59 PM Thread Starter
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Quote:
Originally Posted by RockTaco View Post
This is what I was thinking too, I'll bet one could from something else that would work well...

Has anyone found an aftermarket filter that replaces the goofy element carrier and gasket? I've seen some that are universal filters with a band clamp to secure it but there isn't really a good mounting flange to secure it to.
I just received the Uni filter designed for this machine but it uses the same carrier as stock :-(
Uses the same carrier as stock? Meaning you get a spare carrier? Or meaning they just give you some foam and you put that on your existing setup?
Meh. Quick eBay search indicates foam only. Drat.

2016 Grizzly 700 EPS SE Carbon Metallic
Heat Demon heated grips/thumb warmer.
26" ITP Blackwater Evo Tires on SE wheels.

2015 Grizzly 700 EPS SE Silver
Iron Baltic Skid Plate Kit.
Wheels: Douglas Rattlesnake (machined outer)
Tires: 26x9x12 Sedona Rip Saw

2007 Grizzly 700 EPS (Deep Purplish Blue)
1.5mm shim and purple spring

2007 Grizzly 700 EPS (Special Edition Silver) [Sold]

Last edited by Scoundrel; 10-13-2016 at 05:01 PM.
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post #13 of 34 Old 10-13-2016, 05:06 PM Thread Starter
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Quote:
Originally Posted by whiskeymike View Post
Neoprene rubber foam would work great.
Something like this?
29" X 20" X 3/4" Neoprene closed cell foam

The big problem with this plan is that it's a warranty-voider for sure. Slathering goop on their foam, especially cleanable No-Toil goop, is easily reversible.

2016 Grizzly 700 EPS SE Carbon Metallic
Heat Demon heated grips/thumb warmer.
26" ITP Blackwater Evo Tires on SE wheels.

2015 Grizzly 700 EPS SE Silver
Iron Baltic Skid Plate Kit.
Wheels: Douglas Rattlesnake (machined outer)
Tires: 26x9x12 Sedona Rip Saw

2007 Grizzly 700 EPS (Deep Purplish Blue)
1.5mm shim and purple spring

2007 Grizzly 700 EPS (Special Edition Silver) [Sold]

Last edited by Scoundrel; 10-13-2016 at 05:09 PM.
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post #14 of 34 Old 10-13-2016, 05:28 PM
 
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Yeah, but you'll want thinner, it's much more dense than the original foam.
I don't think they would notice honestly.
If the no toil works, might not be worth messing with really.

YACC #44

'13 camo 550-SOLD

'15 700 SE-

-27"bearclaw HTR's/STI beadlocks
-2" snorkels/EHS fuel cont./extended. batt. cables/exh. tip OR barkers
-rox setup
-Switch panel/voltmeter/temp gauge/20"light bar/eagle eye rear lights/led TL panel w/ flash module
-2x pelican 1200/2x pelican 1400 cases
-viper max 3500#/1/4" amsteel blue rope
-ODI rogue
-DIY 1/4" skids/bumper repl.
-machined sheave 3.13:1 ratio, cut camplate
-blocked A.I.S.
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post #15 of 34 Old 10-14-2016, 01:50 PM
 
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Quote:
Originally Posted by Scoundrel View Post
Uses the same carrier as stock? Meaning you get a spare carrier? Or meaning they just give you some foam and you put that on your existing setup?
Meh. Quick eBay search indicates foam only. Drat.
How about mounting a universal flange on the inside of the air box so a universal Uni (or other) filter could be used?

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