lordie

Yesterday i have removed my catalysator. But since then I'm smoking blue. In 90% i smoke during boost only or when i shift away, but sometimes i smoke a little on idle, too. I didn't smoke until i removed my cat. Can this removal up my oil pressure? My oil return line is enough wide (18mm) and goes downward only.

I had probs with "oil air" (i don't know how it is called in English, the air that connects back into intake pipe) before. The pressure was too high and i had to lead it alone from a small black box under the intake manifold (a box where 3 lines are connecting in). Unfortunately i couldn't take photo about this box it so hidden, but on the second picture you see a small part of the lead away line that goes under the injector where this box is. On the left of the first photo you see the "hack" itself, where the line is going to (oil air - and some oil/water mixture if there is - goes into that lame bottle and there are small holes on bottle to purge the air away).

I bought an oil pressure gauge, but the sensor part was too big and couldn't install it from the oil filter. I was told they get other pressure gauge in september only that has smaller sensor, but i don't want to wait with oil leaking by then...

Do you think my turbo seals cause this smoke? (due to upped oil pressure - if it is upped at all from cat removal) Because i smoke mainly during boost...

Please, help!

ssl2k

im guessing that it smoked before the cat but the cat just filtered it to the point where you couldn't see the smoke.

my old d16a6 did that...bad rings

nathan

Reddy

Did you have sex with that plug and forget to clean up or something?

Semnos

hmmm oil mixed with water...maybe you blew your head gasket.
Now the coolant mixed with oil is going into your combustion chamber??

quadnie

it is very typical for the catalytic converter to cover up the burning coolant smell and the smoke. Usually the oil will get past it but not the coolant. You really didn't do anything wrong by dumping the cat, the problem has been there for some time. Run a compression check to see where you stand.

I recall on the '89 CRX Si after I dumped the cat I had some smoke on startup that all of a sudden appeared.. not out of the ordinary for a beat up d16a6.

lordie

No cooling water has been lost at all and i don't see white smoke either, thus IMO my head gasket can be good, no? BTW, I did a compression check 2 weeks ago and everything was fine (180 PSI in all 4 chambers).

So, you don't think the turbo seals can be wrong, do you?

Do i have to remove the whole head to see if the rings are bad? (how do I notice they are bad?) i have no experience in that, never replaced anything inside my B16 block, so it's better to ask my Honda service then. Except sparks plugs

HMT-Admin

What shape is the turbo? how many miles, its possible the exhaust housing seal is leaking. A easy way to tell is take the downpipe off and look at the exhaust wheel to see if it is wet.

How many miles on this engine, It looks like a obd2 engine, so I wouldnt think this engine would have bad rings or even bad valve stem seals unless you have been boosting the living ---- out of it and beating the crap out of it. How well is this thing tuned?

Where is your oil return, is it at the top of your oil pan? if it sits in the middle the oil return will backup and overfill the center section and push oil out of the exhaust seal on the turbo.

But just taking the cat off wont make it smoke, and a cat shouldnt even filter or catch any of the smoke either. I find it odd that it just started to happen after you took it off.

let us know whatcha find.

jeff

lordie

Whitey! It's plastic to seal proper

The engine is B16A2, year '99, 95k miles, serviced in Honda repair shop every 6k miles (by prev. owner, I'm not that fat with money). Turbo is T3/T4B, boosted for 2 months only (.5bar = 7.3psi). SMC500 for management and settings is rich of fuel (31%-21% with 390cc).

First i take the turbo to turbo repair shop next week and wait what they say. Hopefully not the engine...

Semnos! That water is not cooling water, it is condensed water and oil. I was told on Cosworths it is common, not problem at all and much more liquid appears in a bottle fabricated OEM. From that bottle oil with condesed water lead back to oil pan. But this is not Ford

I'll take a photo about my oil return line tomorrow. The fitting in oil pan is high enough IMO.

Thanks for ideas anyway!

lordie

I'm back from the turbo repair shop. The turbo is all right. No oil leaking at all. I wanted to buy an oil pressure meter (as i try to measure my oil pressure first before dismantling my engine), but any gauge i have found had huge oval sensor that didn't fit beside the oil filter. How do you install the oil sensors to fit right beside the oil filter? Shall i ask someone to make an 'L" fitting for it or what? Have you got photos about this solution?

45psi

you can ghetto-rig your own with a brass T, or something to that effect... I also thought that the valve cover likes negative pressure. looks like your charge pipe is hooked right up to your valve cover breather tube.