What is this part called?

[C10MixMaster]

Ya know...you said "replacing periodically" and it got me to wondering if..a fresh and clean one would prove any benefit to...engine vacuum.
Surely that's the original part in my truck.

Very curious to see what's inside - what are the chances it's lasted 43 years and works @ maximum efficiency?
I'm anxious to see what's inside.

Does an old booster filter kill brake boosters AND / OR have a negative effect on vacuum numbers?

How very curious.

Whats up with a before and after reading?
You could do a test see?

OMMFG WHAT IS INSIDE THAT DEAL?

I forward the idea that a clogged up booster filter reduces engine vacuum.

If THAT is true, it would thereby INCREASE blow-by and have a directly negative impact on valve stem seals.
Follow?

Everything that follows behind it has to work.against it. That would compound quickly.



I want a new one now.

Thanks Mister B.

Prove the theory!

This filter has no effect on the booster itself at least as far as life expectancy.

IMHO changing the filter will have no effect on engine vacuum it is basically a sealed system except when braking.

If the filter is extremely plugged it might reduce vacuum to the booster requiring additional pedal pressure but probably very unlikely. again just IMO.

I would replace it mainly because at 43 years old if the element falls apart inside all that junk would end up in the engine.

 

[MisterB]

OK, guys. I removed the old one and installed the new one. It's late and I haven't taken it for a test drive, but I DID do surgery on the old one [emoji6]

I don't know if this is normal, but I doubt it. Once I cut in to it, all this charcoal like dust dumped out everywhere. There's a clothlike piece on the inside end.

Interested to see if my braking is improved. I'll try it out tomorrow and report back

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[gotyourgoat]

More funk than I imagined.

Looks like you cut open a brita. Guessing that's not filter material.

Did you happen to try and blow air through it?

 

[MisterB]

More funk than I imagined.

Looks like you cut open a brita. Guessing that's not filter material.

Did you happen to try and blow air through it?

Yeah, at first I just thought the cut plastic was making a mess, but then it got everywhere and I figured out what was going on. It was all over the workbench and the floor. I didn't blow any air through it. Really curious to do a test drive tomorrow now

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[AuroraGirl]

I guess another way to see it, is the air filter cant perfectly 100% remove contaminents, and with combustion there is byproducts big or small, and you take into account seals not being 100% perfect, grommets on valve covers, etc, all these micro-abrasives will and have found their way past, and when a part instrumental to the ability of stopping pulls its power from this imperfect source, theres gonna be some that get by. So a small, unobstructing filter just doing its part to make sure it can be a good backup while not complicating or costing a lot. When I put my new check valve in, I put a new one in as well. Dont notice a difference but I dont use the roads and I have a bad rear wheel cylinder. when i find mine ill cut it open. if i can find an old one on a shelf my gpa had salvaged i can cut that, too. Give an idea of what kinds of things theyve caught over the years.

Oh, and a benefit I see, being they ran a 90 degree angle, you can run your hose behind the booster and have snake to the back of the carb with a less-obstructing bend in the way trying to route a hose the hole way.

 

[AuroraGirl]

An example from mine, tucks it a little more nicely. iirc, the hose diameter from the carb to filter is a different size than filter to check valve, and when I removed the old one i confirmed that. I dont remember the size, but I used a same size on both, and it worked but required more force to squeeze on. There may have been a design decision there.

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[Rusty Nail]

Looks like what's inside of a charcoal canister and I believe that adds weight to my theory. We ALL know those deals go bad.

OK that filter is not a bad thing to have. think of you brake booster as a big vacuum leak. during its operation fresh air enters it from the back side from under the dash. it eventually makes its way through the booster and into your engine. The booster has a cheap crappy foam sponge filter on the inlet however any dust from under the dash that gets past it will enter the engine. the inline filter is there to keep dust out of the engine. I added one to my truck , I would like to keep as much dirt out of my engine as I can.

This filter has no effect on the booster itself at least as far as life expectancy.

IMHO changing the filter will have no effect on engine vacuum it is basically a sealed system except when braking.

If the filter is extremely plugged it might reduce vacuum to the booster requiring additional pedal pressure but probably very unlikely. again just IMO.

I would replace it mainly because at 43 years old if the element falls apart inside all that junk would end up in the engine.

These posts appear to contradict?
Respectfully, perhaps you will like to clarify.

Where is Thomas Dolby when ya need him?

If you are to have cake, you may not also eat it.
Not even in the name of science!

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[MisterB]

Looks like what's inside of a charcoal canister and I believe that adds weight to my theory. We ALL know those deals go bad.





These posts appear to contradict?
Respectfully, perhaps you will like to clarify.

Where is Thomas Dolby when ya need him?

If you are to have cake, you may not also eat it.
Not even in the name of science!

xc_hide_links_from_guests_guests_error_hide_media

Lol. That pic of her engine bay is probably about what a pic inside her head would look like [emoji1787]

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[bucket]

Hmm, I don't like what I see. I'll still continue to take my chances without that filter.

But why the charcoal like substance? Is the purpose not only to filter the air, but to also prevent fuel and oil vapors from entering the interior?

 

[gotyourgoat]

Hmm, I don't like what I see. I'll still continue to take my chances without that filter.

But why the charcoal like substance? Is the purpose not only to filter the air, but to also prevent fuel and oil vapors from entering the interior?

I thought the crud teamed up and formed little pellets over time. You think that charcoal was supposed to be in there from the start?

Someone needs to cut open a new one.

 

[bucket]

I thought the crud teamed up and formed little pellets over time. You think that charcoal was supposed to be in there from the start?

Someone needs to cut open a new one.

That'd be my guess, yes.

 

[Rusty Nail]

Well **** a doodle doo.
I tried to buy one last night from LMC out of the page I posted here and you mother fuvckers bought em all up already, it's sold out.

I dunno wat we're gonna do now. Need a new plan I guess.
Gotta stop being so damned helpful ya reckon?

 

[bucket]

Also, it seems like these filters were primarily only installed on RWD GM products and maybe only carbureted too.

...gonna look into this out of curiosity.

 

[MisterB]

Well **** a doodle doo.
I tried to buy one last night from LMC out of the page I posted here and you mother fuvckers bought em all up already, it's sold out.

I dunno wat we're gonna do now. Need a new plan I guess.
Gotta stop being so damned helpful ya reckon?

I got mine from NAPA

https://www.napaonline.com/en/p/NDP6755136

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[MisterB]

Also, it seems like these filters were primarily only installed on RWD GM products and maybe only carbureted too.

...gonna look into this out of curiosity.

Mine is a 3/4 ton K2500 4X4, and NAPA anyway shows that this part is correct for my truck

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