3TGTE question

**ta23** · 18-02-2006, 01:05 AM

Hey,

I was just wondering if someone could tell me what hose would connect to the adaptor circled in the following picture. Currently mine is unhooked and leaking a little bit of oil.

Could I just run a hose to an oil breather or is it better off getting connected to another part of the engine.

Cheers,
Mitch.

**WDE_BDY** · 18-02-2006, 04:01 AM

Runs up to the intake manifold, its the crankcase breather. Yes you could just run it to a catch can setup of some sort, along with the outlet on the rocker cover. Check legality though, you may not be able to vent the catch can to atmoshere.

Callum

**ta23** · 18-02-2006, 12:27 PM

Cheers for the info.

There were some lines in my engine bay that led to the crankcase breather, but when I hooked it up my car blew out masive amounts of smoke so I unhooked it straight away. It went from the crankcase breather and joined into the line that travels from my catch can to rocker cover.

Any ideas on why this is happening, should it be joined in a different spot. Wopuld appreciate if anyone has any pics or diagrams on where I should run it.

Below is a pic which shows where the line went to, I have since blocked it off and removed the line. The red dots show which hose it is.

Any help would be greatly appreciated.

Cheers,
Mitch.

**YelloRolla** · 19-02-2006, 09:05 AM

There is supposed to be a check valve in line between the crank case breather and the intake manifold. If this is not there then the engine will huff plenty of smoke under boost. This will happen because the intake manifold will be supplying pressure to the crank case as well as any blow by from the combustion process.
The check valve should be oriented so that the manifold can suck on the crank case. IF you don't have the original (or it is stuffed) you could get a brake booster check valve from a wreck.

**YelloRolla** · 19-02-2006, 09:08 AM

TA23 - whose engine is pictured in the first post? I ask because that engine looks like it has one of my crank trigger disc and CAS bracket sets on it.

**ta23** · 20-02-2006, 05:47 PM

Thanks for all the info YelloRolla, much appreciated! Got a couple more questions if anyone can help me out.

So the hose I had running there previously will it be ok or could you point out where it would be best to run?

Can I get a check valve from any brake booster and any car or are certain ones better suited, are they available at places like repco?

The first photo I just got from the net, I think its the old 3TGTE from Joel's RA28.

Once again thanks heaps for the help.

Cheers,
Mitch.

**WDE_BDY** · 20-02-2006, 06:05 PM

Will look at the two motors in my shed for you tomorrow night.

Callum

**ta23** · 20-02-2006, 10:21 PM

Cheers mate

**YelloRolla** · 20-02-2006, 11:04 PM

Originally Posted by ta23

Thanks for all the info YelloRolla, much appreciated! Got a couple more questions if anyone can help me out.

You're welcome.

Originally Posted by ta23

So the hose I had running there previously will it be ok or could you point out where it would be best to run?

It should go to the underside of the plenum chamber. The one from the rocker cover was originally plumbed into the intake tube (prior to turbo) as there is always a vacuum signal there (aided by the vane AFM).

Originally Posted by ta23

Can I get a check valve from any brake booster and any car or are certain ones better suited, are they available at places like repco?

Measure the diameter of the nipple in the can and try to get one that is the same size. You will need to find a car where the check valve is in-line (KE55 Corolla I think is one such beast). If it is still holding vacuum when you unplug it then it is probably in good nick.

Originally Posted by ta23

The first photo I just got from the net, I think its the old 3TGTE from Joel's RA28.

If you bought Joel's intake manifold, you could hook the canister to the fitting tapped at the rear of the plenum.

A good way to solve the whole shooting match is to make a larger canister (oil/air separator), plumb both breathers into it and use said check valve to plenum. If you give this enough volume, then it will cope better with evacuating the sump under boost and be less likely to fill you manifold with oil when you really wind the wick up.

**ta23** · 22-02-2006, 10:40 PM

Thanks heaps for all your help Yellorolla, once again much appeciated!

I am not 100% confident in doing all this myself though, I am taking the car to be tuned very shortly, so I might leave it to the professionals unless anyone has a picture or diagram of one that is already hooked up.

I am thinking about taking the car to Jakes Performance in Canberra so if anyone has any opinions of the quality of work done by them that would also be appreciated. Although I have only heard good things about them so far.

Cheers,
Mitch.