Catch Can ****

[89Suburban]

Does anybody else here get this in their catch can ??? I certainly don't. I posted a pic previously here.

I guess living downs south you don't get this stuff in your can.

 

[iamdub]

I guess living downs south you don't get this stuff in your can.

Nope. The stuff I drain looks just like what's in the crankcase.

My most recent oil change:




It looks really dark for some reason. Here's my dipstick before I changed it:




But, yeah- no water.

 

[89Suburban]

Nope. The stuff I drain looks just like what's in the crankcase.

My most recent oil change:

View attachment 363827


It looks really dark for some reason. Here's my dipstick before I changed it:

View attachment 363828


But, yeah- no water.

There ya go. The proof is in the bottle lol.

 

[donjetman]

I don't know?? We use our Denali to run back and forth between TX and the CO mtns in the winter and spring where it's cold. No condensation.

Trailblazer may have a leak allowing moist outside air into the crankcase and he has stuck rings. IMO, that amount of oil and condensation is unhealthy evidence.

 

[trailblazer]

I’m gonna install one of these catch cans on my ‘10 F-150 4.6l to pull out the water in that too. Bought two of these for $5.75/ea on fleabay:

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[gooffeyguy]

I’m gonna install one of these catch cans on my ‘10 F-150 4.6l to pull out the water in that too. Bought two of these for $5.75/ea on fleabay:

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The catch can doesn't "pull out the water"

Usually when the engine gets up to operating temperature any condensation in the crankcase will boil off into steam.

Constant short trips, where the engine doesn't get up to operating temp, will not let the water boil off and the oil (and under the oil cap) will look milky.

In the colder weather, the catch can will get condensation inside it just because it's away from the engine and has cooler air around it and then gets hot oil vapor ran through it from the engine. The temp inside the catch can will not get hot enough to boil off any moisture and it gets stuck inside the can. That condensation inside the can will mix with the oil that has been caught from the engine and cause it to look milky.

 

[Geoffsfas10]

Rather then start a thread, im dig this one up...

who here's swapped out ball valve that came with yours? the one that came with my amazon can seems to leak a bunch from the handle, it needs to be replaced and the valve seems to be a weird one.

 

[gooffeyguy]

Rather then start a thread, im dig this one up...

who here's swapped out ball valve that came with yours? the one that came with my amazon can seems to leak a bunch from the handle, it needs to be replaced and the valve seems to be a weird one.

My can came with a petcock style valve that screws out. I replaced it with a ball valve style.

1/4" available at Home Depot by the air compressor accessories



Or if you don't like the long handle, any 1/4" mini ball valve on Amazon will work. I used a mini style one on the old catch can I had.

 

[Dustin Jackson]

I’m gonna install one of these catch cans on my ‘10 F-150 4.6l to pull out the water in that too. Bought two of these for $5.75/ea on fleabay:

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How does the underside of your oil cap look? I am guessing wherever you live is very humid

 

[Geoffsfas10]

My can came with a petcock style valve that screws out. I replaced it with a ball valve style.

1/4" available at Home Depot by the air compressor accessories

View attachment 403951

Or if you don't like the long handle, any 1/4" mini ball valve on Amazon will work. I used a mini style one on the old catch can I had.

View attachment 403952

Did that size work for yours? those valves seem small compared to the one i have, but im getting pretty tired of the oily water puddles. i want to say mine needs a 3/8" valve