breather setup's

[tsoob]

ok im done with spending hours searching this archive, its just sooooo big now.

I want to know how people have their 4agte setup's breathing,

where are your breather lines,
what have you done to change from factory?
what relavance do the oil squirters have?

Thanks,
Nick

[Bazda]

Look at Brendons setup on his 4agte. Thats what you need.
taped into the ends of both rocket covers, welded in a splash plate, welded on 2x -10 AN fittings. Into a big 2L catch can with baffles and some steel wool stuffing under neath the breather filters.
He also did a drain back to the sump, that part is up to you if you want to have that option or not.

[cat007]

Look at Brendons setup on his 4agte. Thats what you need.
taped into the ends of both rocket covers, welded in a splash plate, welded on 2x -10 AN fittings. Into a big 2L catch can with baffles and some steel wool stuffing under neath the breather filters.
He also did a drain back to the sump, that part is up to you if you want to have that option or not.

As long as the steel wool doesn't come apart of leave any shards in the oil

and you've probably got more problems if you're having to drain your catch can back into the sump.....

[evil_si]

a lot of factory beather setups use steel wool in the rocker cover,
there is no issue with the oil squirters.

i usually weld 2 -8 or -10 fittings in the end of the covers or in the position were the factory one is.

[IH8TEC]

Look at Brendons setup on his 4agte. Thats what you need.
taped into the ends of both rocket covers, welded in a splash plate, welded on 2x -10 AN fittings. Into a big 2L catch can with baffles and some steel wool stuffing under neath the breather filters.
He also did a drain back to the sump, that part is up to you if you want to have that option or not.

As long as the steel wool doesn't come apart of leave any shards in the oil

and you've probably got more problems if you're having to drain your catch can back into the sump.....

not really, 4agte's with high boost vent ALOT, did it on fresh motor, did it on motor with 15,000+kms, clearances were fine.

i put a drain back as a re-assurance that there will be oil in there and not all just sitting in the catch can. also baffled the sump at the same time as plumbing it in with a few other bits when i had a motor fail due to oil starvation.

[cat007]

Perhaps then the pickup design needs changing so there's more gas than liquid ending up going to the catch can lol

[Bazda]

The steel wool donest actually sit in the catch directly. You build up a space under the breather filters with holes in it that the wool sits in.

[l1ttle_d3vil]

Look at Brendons setup on his 4agte. Thats what you need.
taped into the ends of both rocket covers, welded in a splash plate, welded on 2x -10 AN fittings. Into a big 2L catch can with baffles and some steel wool stuffing under neath the breather filters.
He also did a drain back to the sump, that part is up to you if you want to have that option or not.

As long as the steel wool doesn't come apart of leave any shards in the oil

and you've probably got more problems if you're having to drain your catch can back into the sump.....

Last time I emptied my catch can it was full of dirty brown water... no oil at all. must've been condensation or something, oil in the engine is fine but I definitely wouldn't want that draining back into the sump

[tsoob]

ok ill put some pics up tomorrow what i have already done, and re-read brendons project. i need to solve this problem bad

[cat007]

The water was because one on the by products of burning fuel and the combustion process is water lol

[l1ttle_d3vil]

The water was because one on the by products of burning fuel and the combustion process is water lol

yeah, i failed at shcool was just weird because it had about 700ml of water and no oil at all.

tsoob - theres some pics in my project thread of my setup too, similar to brendons but alot more backyardy / hori

[IH8TEC]

Look at Brendons setup on his 4agte. Thats what you need.
taped into the ends of both rocket covers, welded in a splash plate, welded on 2x -10 AN fittings. Into a big 2L catch can with baffles and some steel wool stuffing under neath the breather filters.
He also did a drain back to the sump, that part is up to you if you want to have that option or not.

As long as the steel wool doesn't come apart of leave any shards in the oil

and you've probably got more problems if you're having to drain your catch can back into the sump.....

Last time I emptied my catch can it was full of dirty brown water... no oil at all. must've been condensation or something, oil in the engine is fine but I definitely wouldn't want that draining back into the sump

I've never had dirty water or anything in mine, just oil. weird

[cat007]

700ml of water is a shirt load lol

I would've thought you'd get about 100ml MAX every 3-5000km's

Not saying 700ml is bad - as I'm just guessing, but just seems like a lot

[~SlideWays~]

The reason my 4agte has a drain from catch can to the sump is because 16v 4age's have a problem where the oil pump pushes too much oil into the head so it doesn't drain back into the sump fast enough. This is why Mr Toyota added an external oil drain from the head on the last gen 16v 4age (redtop smallport).

So when the head gets too full of oil during sustained high revs, it starts pushing out the breather and into the catch can, hence the reason for a drain back into the sump. I change the oil frequently so there isn't any problems with contamination.

20v's don't have this problem because of the revised head (not just some more valves!).

Happened on my NA bigport 4age, on my bigport 4agze turbo, on my smallport 4agze and happens on my current smallport 4agze turbo. But doesn't on our 20v.

Only happens with sustained periods of high revs, such as a couple of laps at a race track or a spirited drive (on closed private roads).

My setup is a 2L catch tank, with two 22mm outlet breathers directly coming from a sectioned off part filled with steelwool and drainage/breathing holes. The section with the breathers is a removable lid so I can replace the wool. At the bottom of the catch tank there is a 18mm drain hole going into the sump. The cam covers had 24mm holes drilled into the top, a baffle put over the hole and then sealed off with raised alloy boxes on each cam cover, at the highest point of the raised sections it has 18mm outlets which lead to the catch tank.

Check my GTZ project thread for some pics, can take more detailed ones if needed.

[tsoob]

The reason my 4agte has a drain from catch can to the sump is because 16v 4age's have a problem where the oil pump pushes too much oil into the head so it doesn't drain back into the sump fast enough. This is why Mr Toyota added an external oil drain from the head on the last gen 16v 4age (redtop smallport).

So when the head gets too full of oil during sustained high revs, it starts pushing out the breather and into the catch can, hence the reason for a drain back into the sump. I change the oil frequently so there isn't any problems with contamination.

20v's don't have this problem because of the revised head (not just some more valves!).

Happened on my NA bigport 4age, on my bigport 4agze turbo, on my smallport 4agze and happens on my current smallport 4agze turbo. But doesn't on our 20v.

Only happens with sustained periods of high revs, such as a couple of laps at a race track or a spirited drive (on closed private roads).

My setup is a 2L catch tank, with two 22mm outlet breathers directly coming from a sectioned off part filled with steelwool and drainage/breathing holes. The section with the breathers is a removable lid so I can replace the wool. At the bottom of the catch tank there is a 18mm drain hole going into the sump. The cam covers had 24mm holes drilled into the top, a baffle put over the hole and then sealed off with raised alloy boxes on each cam cover, at the highest point of the raised sections it has 18mm outlets which lead to the catch tank.

Check my GTZ project thread for some pics, can take more detailed ones if needed.

yeah thats what i think ill need to do,

is it possible to setup the external oil drain on my one (its early 8.0:1 AFM version)

[~SlideWays~]

The reason my 4agte has a drain from catch can to the sump is because 16v 4age's have a problem where the oil pump pushes too much oil into the head so it doesn't drain back into the sump fast enough. This is why Mr Toyota added an external oil drain from the head on the last gen 16v 4age (redtop smallport).

So when the head gets too full of oil during sustained high revs, it starts pushing out the breather and into the catch can, hence the reason for a drain back into the sump. I change the oil frequently so there isn't any problems with contamination.

20v's don't have this problem because of the revised head (not just some more valves!).

Happened on my NA bigport 4age, on my bigport 4agze turbo, on my smallport 4agze and happens on my current smallport 4agze turbo. But doesn't on our 20v.

Only happens with sustained periods of high revs, such as a couple of laps at a race track or a spirited drive (on closed private roads).

My setup is a 2L catch tank, with two 22mm outlet breathers directly coming from a sectioned off part filled with steelwool and drainage/breathing holes. The section with the breathers is a removable lid so I can replace the wool. At the bottom of the catch tank there is a 18mm drain hole going into the sump. The cam covers had 24mm holes drilled into the top, a baffle put over the hole and then sealed off with raised alloy boxes on each cam cover, at the highest point of the raised sections it has 18mm outlets which lead to the catch tank.

Check my GTZ project thread for some pics, can take more detailed ones if needed.

yeah thats what i think ill need to do,

is it possible to setup the external oil drain on my one (its early 8.0:1 AFM version)

8:0 would be bigport so no oildrain fitting in head or block but you could tap the cam cover and take it straight to the sump.

[frost]

700ml of water is a shirt load lol

I would've thought you'd get about 100ml MAX every 3-5000km's

Not saying 700ml is bad - as I'm just guessing, but just seems like a lot

strange how much moisture comes out of a 4age,
my small port fills up the 250ml can every 5k,
and its never black oil, its really bad smelling brown jelly,

[tsoob]

The reason my 4agte has a drain from catch can to the sump is because 16v 4age's have a problem where the oil pump pushes too much oil into the head so it doesn't drain back into the sump fast enough. This is why Mr Toyota added an external oil drain from the head on the last gen 16v 4age (redtop smallport).

So when the head gets too full of oil during sustained high revs, it starts pushing out the breather and into the catch can, hence the reason for a drain back into the sump. I change the oil frequently so there isn't any problems with contamination.

20v's don't have this problem because of the revised head (not just some more valves!).

Happened on my NA bigport 4age, on my bigport 4agze turbo, on my smallport 4agze and happens on my current smallport 4agze turbo. But doesn't on our 20v.

Only happens with sustained periods of high revs, such as a couple of laps at a race track or a spirited drive (on closed private roads).

My setup is a 2L catch tank, with two 22mm outlet breathers directly coming from a sectioned off part filled with steelwool and drainage/breathing holes. The section with the breathers is a removable lid so I can replace the wool. At the bottom of the catch tank there is a 18mm drain hole going into the sump. The cam covers had 24mm holes drilled into the top, a baffle put over the hole and then sealed off with raised alloy boxes on each cam cover, at the highest point of the raised sections it has 18mm outlets which lead to the catch tank.

Check my GTZ project thread for some pics, can take more detailed ones if needed.

yeah thats what i think ill need to do,

is it possible to setup the external oil drain on my one (its early 8.0:1 AFM version)

8:0 would be bigport so no oildrain fitting in head or block but you could tap the cam cover and take it straight to the sump.

like out of the rocker cover? striaght back to the sump?

[~SlideWays~]

like out of the rocker cover? striaght back to the sump?

Yep thats essentially what I have except it goes to the catch tank, breaths, then if oil has been pushed through the cam cover breathers it can drain back into the sump.

The majority of the oil still goes through the filter and you can change the oil often as a precaution.

[mr30%jr]

time for dry sump lol seems to only be a problem on boosted 4a applications? all of the n/as i have seen or had had no issues bar the 4agzes used to dump there oily load into the TB on stock blow by maybe due to low compression you are getting alot more blow by?