With 3500 miles on the motor I noticed some drizzle around the filter on top of my catch can. Fuck. I forgot to keep an eye on that bitch. Last time I checked it was at 500 miles and there was barely a bit of oil at the bottom (the can holds 500 ml). Now it was completely full of a nice milkshake of blow by and oil.

If you spend more time on the right side of the vac/boost gauge, then check your catch can, heh.

or buy one with a guage on the side :eek

True heh.

Thanks for reminding me. Mine has a gauge but it's not in the most convenient location.

Never found a milkshake in my catchcan before :shrug

Originally posted by ez
Thanks for reminding me. Mine has a gauge but it's not in the most convenient location. Never found a milkshake in my catchcan before :shrug

Looks more like a chocolate malt to me.

Might want to check the rest of the oil.

That is pretty nasty.

Why the milkshake look?

Not sure why it looks that way. It was pretty loose, and smelled of fuel vapor.

All the fluids look perfect - oil has no contamination.

Maybe the oil is just foamed from the pressure pushing through it after the level exceeded the inlets.

I am assuming the same... oxygenated oil, if there is such a thing.

Whenever I check mine every 2-3K miles, I always have a mixture that is somewhat similar to that. Usually I have the foamy stuff floating on top, and then a normal oily mixture on the bottom, and it always smells like fuel vapor.

I dont think the way yours looks is anything to worry about.

why don't people just use a crankcase evac system? it's less maintenance, but you don't have the luxury of measuring the sludge lost... what are the differences

Because the evac system causes your car to smoke even more by putting the oil and contaminates in the exhaust to burn away.

Why would you want that shit recirculating back into the intake tract? Rather just have it collect in a can and empty it out every now and then.

The evac system doesn't recirc into the intake, it goes into the exhaust.

Oh. I guess I'm actually not familiar with that term, but just assumed Mikey was referring to a typical PCV setup. My mistake.

Either way, I see no benefit above just having all that muck collect in a catch can.

jess, its like this:

1. buy one of these, and weld it after the cat...



you could buy just that one, or buy a set, its just a little more, like this:



the threaded part screws into a small snout that you weld into the exhaust...

like this:



one thing I dont agree with on that diagram is that our 2nd o2 will get all crap on it if it's installed in that location. I have mine after the cat and after the 2nd o2. Connect a hose from it to the valve cover breather port. wallah. done.

watch this too:

YouTube.com

Mike,

Have you tested the vacuum at the valve cover while at idle and under boost? I am curious how strong the vacuum is.

it's a fair amount at idle, but when throttle's applied, it gets rather strong. Can't imagine how much it'd pull when under boost, but i'm sure its plenty. I've never actually measured it

Milkshake is normal.

You know how I check my level in my catch cans? When I have little white pee pee coming out of it, I know its full, lol (um talking about the catch can here).

Boy am I a lazy bastard.

Originally posted by bullettdsm
Milkshake is normal. You know how I check my level in my catch cans? When I have little white pee pee coming out of it, I know its full, lol (um talking about the catch can here). Boy am I a lazy bastard.

I have you beat.

I just ran the hose to the ground. I know it's full when the earth is covered in milkshake.

lmao

Damn I just have oil coming out of my filter..