FJ80 cabin air intake (1 Viewer)

[DARKNESS]

That's great work! I wonder why go with a strange shaped filter element but instead make your adapter but place a widely available square/rectangular filter above the funnel. Simply adapt the weird shape to a square received placing the filter above it but keeping the slide in cartridge idea. Easy peasy.

Agreed. Only reason not to would be more surface area.

 

[Arabian Cruiser]

That's great work! I wonder why go with a strange shaped filter element but instead make your adapter but place a widely available square/rectangular filter above the funnel. Simply adapt the weird shape to a square received placing the filter above it but keeping the slide in cartridge idea. Easy peasy.

I would love to do that. But space in there is against us. Will measure again today.

 

[Dissent]

Gotcha. The wife's RX300 filter is about 6x6x1/2 inch. Not very thick at all.

 

[izzyandsue]

Mcladdin, hate to bother you with this, but do you have a measurement from the bottom to the top of the cavity? Floor to ceiling for the cavity where the intake is? Dont have to be exact, close enough will do. I am thinking about another option. Thanks.

 

[izzyandsue]

What I was thinking is a filter like this, based on dimensions, would it fit and allow for full flow of air with minimal changes? Maybe needs a sheet metal interface on the bottom where it connects with truck. Then the top is jammed against top metal (as it is rubbery) and stays in place like that. this filter is $6.99 FRAM CA3688. The sheet metal interface could be cut with simple tin snips (until mass produced by one of us). The filter would be up and out of the water, and it is an engine air filter so should work fine if wet.

 

[Arabian Cruiser]

What I was thinking is a filter like this, based on dimensions, would it fit and allow for full flow of air with minimal changes? Maybe needs a sheet metal interface on the bottom where it connects with truck. Then the top is jammed against top metal (as it is rubbery) and stays in place like that. this filter is $6.99 FRAM CA3688. The sheet metal interface could be cut with simple tin snips (until mass produced by one of us). The filter would be up and out of the water, and it is an engine air filter so should work fine if wet.

View attachment 1065172 View attachment 1065174

I'll get you the measurements.

 

[DARKNESS]

That type of filter seems much harder to make work.

 

[izzyandsue]

Now that I printed the scale version of the opening, the OD of the filter would almost cover the entire area. It wouldn't fit in intact, I would slice one side to it can slide into the opening first (then add filler to complete circle), add a simple clamp to ensure it stays in shape. If the vertical distance is too short we are screwed. But if it is just short, capping the top to provide some mechanical securing method might not be too hard. I will tinker this summer on it. Might even fire up my old version of Pro-E and design an interface and cost it out.

 

[Arabian Cruiser]

Now that I printed the scale version of the opening, the OD of the filter would almost cover the entire area. It wouldn't fit in intact, I would slice one side to it can slide into the opening first (then add filler to complete circle), add a simple clamp to ensure it stays in shape. If the vertical distance is too short we are screwed. But if it is just short, capping the top to provide some mechanical securing method might not be too hard. I will tinker this summer on it. Might even fire up my old version of Pro-E and design an interface and cost it out.

Got busy today. Will get you the height tomorrow for sure.

 

[Dubbinchris]

Something to note. Many times cabin air filters are square panels that slide in from the side as opposed to having to drop in from the top. Their holders are designed to receive them in that manner as well. Not sure if this helps in visualizing a design or not. Obviously a round filter like the one pictured above could only install in one direction whereas a panel type filter could install in a couple different ways. If needed I could shoot a few second video of how the cabin filter installs on my Audi. It's an A4 and thus is a very commonly available filter and likely holder as well.

 

[subzali]

Just changed the one on my Corolla last night. Here's a Youtube video (not mine) of that procedure:


It is on the suction side of the blower.

 

[Dubbinchris]

That a pretty complicated procedure not only for changing the filter but also from a location standpoint in regards to where it would need to fit on an 80 series. I have only mentioned my Audi A4 as it installs in the rain tray area from under the hood, just as it would on an 80.

 

[Douglas S]

That a pretty complicated procedure not only for changing the filter but also from a location standpoint in regards to where it would need to fit on an 80 series. I have only mentioned my Audi A4 as it installs in the rain tray area from under the hood, just as it would on an 80.

It's the same on my B5 S4. On my dad's Jaguar XF-R you open up a little door by reaching underneath the glove box and the filter slides out.

Both are on suction side.

 

[Dubbinchris]

I have a B6 and I'm sure it's nearly the same as the B5 if not exactly the same piece. Quite a few things carried over to the B6

 

[subzali]

That a pretty complicated procedure not only for changing the filter but also from a location standpoint in regards to where it would need to fit on an 80 series. I have only mentioned my Audi A4 as it installs in the rain tray area from under the hood, just as it would on an 80.

Like this?

 

[Dubbinchris]

Yup! Good find. I don't know Bentley did videos like that.

 

[TeeDiggs]

Keep up the great work, @Mcladin . You aren't messing around on the sketches!

 

[Ward Karns]

Is there enough room between the sheet metal louvered cowl cover and the plastic grills beneath that a few rectangular pleated filters could be clipped to one surface or the other in that space? The problem I see is that in the rain the paper pleated filters would cause a lot of very humid air to be sucked down the intake when the fan is on. If the filter material didn't adsorb water that might not be an issue, but then were would the water drain to? Just brain storming to stimulate ideas for possible solutions.

 

[DARKNESS]

Is there enough room between the sheet metal louvered cowl cover and the plastic grills beneath that a few rectangular pleated filters could be clipped to one surface or the other in that space? The problem I see is that in the rain the paper pleated filters would cause a lot of very humid air to be sucked down the intake when the fan is on. If the filter material didn't adsorb water that might not be an issue, but then were would the water drain to? Just brain storming to stimulate ideas for possible solutions.

How is that humidity issue any different than the current setup?

 

[OVERRIT]

Great work, Mcladin. Make 'em and I'll buy 'em!