1UZ BHG?? What else causes water in exhaust?

[stradlater]

I've started pulling apart the exhaust and inlet tract of the 1uz and I've noticed that there's stacks of rust in the exhaust and even in the rear of the exhaust housing on the turbo.

Also, there's a bit of milky-ness in the oil cap.

So of course I'm thinking BHG, however when I bought the thing it test ~160psi per cylinder, and the engine has HARDLY run at ALL since then. It CERTAINLY hasn't done anything other than idles. It only even reved like 3 times. It's never pushed a load.

It back and front fired a bit, but I really struggle to believe that anything I've done so far has caused a BHG.

Thoughts? Could something else have caused it? Or is something else the cause of the water in exhaust and oil?

It WAS running LPG, and it was out of tune badly, so I was figuring that maybe the fuel combusting might have caused it?

[oldcorollas]

short trips.

[stradlater]

Really?


Well, in this case, in terms of 'lengths' this has only EVER done

2 x 10 min idling.

It's NEVER moved under it's own steam, so to speak...

Could that cause it?

[oldcorollas]

sure, short trips = exhaust not warming up enough to vapourise all the water that condenses inside the exhaust during warm up...

you see cars with water pissing out the back when they first get on the road?
if it has onyl ever idled, then that water will still be in the pipes... sittin there...

chuck in a bit of acidity, and could easily cause rust to be not nice..

[ed]

whats the rest of the history of the engine? how long sitting around since last run etc?

[stradlater]

What about the oil cap though?

I'm inclined to think give that it just stopped started all the time that it may have just been the same thing.

[stradlater]

History?
well
I bought it froma wrecker, I saw him do the comp test in front of me.
Then, it's sat in garage and car and so forth for ages.How long since last run?

At least 2 years, if not more.

[oldcorollas]

oil cap.. some blowby puts a bit of water in crankcase.. over time it evaporates and condenses at the highest point (oil cap) which has some oil there... oil emulsifies? if it had warmed up the oil enough, the water would have evap'd quickly and gone out thru PCV..

may not be that bad.

[stradlater]

Yeah, thanks OC - you've got me stressing less - I was WELL pissed off at the thought of having to rip the head gasket off a car that I haven't even DRIVEN yet.

[sillycar chick]

I too have seen this water in the exhaust phenomenon in most of my cars, so dont stress yet, OC is right!
Get the thing running and time to settle in (engines that have been sitting for a while can do funny things until they settle down) and you shouldnt have any dramas.

[oldcorollas]

if the dipstick is also coated in milky stuff when you check the oil level.. then worry

[stradlater]

Ah.. Hehe.

Well, my dip stick is another issue. I think I've got the wrong dipstick for this engine.... So I think it's not actually hitting any oil, it's getting caught in the baffle. Thats another story.

[pandaah]

well is your radiator emptying itself?... dont focus on the exhaust, focus on making sure you engine is ok...

do a pressure test thru the radiator, if that passes, open the cap and run the engine, off idle do short stabs of revs, if the water bubbles up from the radiator when you stab the revs, yup youve done a head gasket...

IF your radiator is emptying and your burning water could also be a cracked head..

but, both of these cases would be noticable with a missfire of some sort... or rough running...





if your radiator is not emptying itself... go for a thrash round the block for 10mins, get the exhaust super hot and the water should disappear

[ed]

2 years of sitting around will attaract any kind of accumulated water/condensation/humidity??

[stradlater]

Is that a question or a statement?

I would have thought 2 years of sitting around probably would, yeah.