2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Steam clean. UTOH

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Old 02-26-05 | 07:25 PM
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Unhappy Steam clean. UTOH

well lets see if a seal is bad in my motor or this is normal.

I used the vac line the only one that seemd to be available to use directly under the bavc. I took a long vac hose put it on here held my finger over end to get back suction. i got an eratic idle as i should when i pulld the vac line off. i then placed it into the buket of water and reved up the motor immedietly wanted to die down on me as was told and it smoked like hell. probly 3acers of my land was smoky!

as well how do i know this cleand both rotors?

I then went and drove the hell out of it.

this smoring it seemd to have water in my oil. I went to check it for oil consumption and top it off all look good a ted bit low. I pulld off the cap to pore oil in and it was milky i whiped it all off and it apeard to have water in there as well.

I do not recal it being milky befor this? are u sapost to flush ur oil and change it after u do this or do i have a bad oil seal?

and now there seems if i turn the car on and pull the rad caop off the one not on the rad but the second one befor the thermostat i see maybe 1 small buble pop up evry second or 2
Old 02-26-05 | 07:40 PM
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well, you should change your oil after you do it... you could do the injection on the days you are planning to change your oil..kind of a maintanance routine
Old 02-26-05 | 08:23 PM
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How did the oil on the dipstick look? That will tell you more about the condition of your oil. The milky goo at the top of the filler neck is not uncommon, usually just condensation.

To check for bubbles in the cooling (i.e. blown coolant seal), remove the filler cap, start the car and let it warm to operating temp. A bubble or 2 after shut down usuall doesn't mean much.
Old 02-26-05 | 08:41 PM
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the dip stick looked fine. the filler was white gue.

I started the car, walked to engin bay and removed cap and watched and a short min after it started over flowing i reved to open thermostat and then i put the cap back on
Old 02-26-05 | 09:55 PM
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Originally Posted by iceblue
I used the vac line the only one that seemd to be available to use directly under the bavc.
You do understand that you did not do it in the recommended way...

https://www.rx7club.com/showpost.php...0&postcount=86



it smoked like hell. probly 3acers of my land was smoky!
That wasn't smoke. That was steam.



as well how do i know this cleand both rotors?
Since you didn't do it properly, you can't.


this smoring it seemd to have water in my oil.
Which may have nothing to do with what you did.


I pulld off the cap to pore oil in and it was milky i whiped it all off and it apeard to have water in there as well.
That goo is 100% normal.


are u sapost to flush ur oil and change it after u do this
Not unless you didn't control the amount of water that engine took in during the procedure. By control I mean pinch/bend the hose to reduce flow.

https://www.rx7club.com/showpost.php...5&postcount=80




or do i have a bad oil seal?
You might. The usual indicator for that is blue smoke at high revs.


and now there seems if i turn the car on and pull the rad caop off the one not on the rad but the second one befor the thermostat i see maybe 1 small buble pop up evry second or 2
Normal.



For someone who has quite a few mods listed, you were pretty goddamn sloppy with this.
Old 02-26-05 | 10:38 PM
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got ya thx for clear up. somewhere i read to use hose under the bavc valve. smoke steam its what i ment. thx for oil clear up and the small bubles that makes me wori alot less. no blue smoke i had a 7 blow a side seal befor.
Old 02-27-05 | 05:59 PM
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Ok Amur_

I did what you said and used that vac line and controlled the watter. I got no steam out the exhoust thow and it started to go into the oil system b/c the filler cap started steaming therew and when i checked the dip stick it had oil water residu on it.
Old 02-27-05 | 06:19 PM
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Originally Posted by iceblue
Ok Amur_

I did what you said and used that vac line and controlled the watter. I got no steam out the exhoust thow and it started to go into the oil system b/c the filler cap started steaming therew and when i checked the dip stick it had oil water residu on it.

I have trouble accepting that water would have gotten down to the oil pan during a proper attempt.

The filler neck was steaming? Normal. Mine does it anytime the engine is hot and the oil cap is off. Year round, even after an oil change. I make a point of removing the oil cap each I go to do work on my car so that I can let some of that moisture out instead of it condensing down there. I also take it off when I do this water injection, for the same reason. That steam comes out a little faster when the motor is revving.

Perhaps the water residue on the stick is from your first attempt.
Old 02-27-05 | 09:08 PM
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Red face

Originally Posted by Amur_
I have trouble accepting that water would have gotten down to the oil pan during a proper attempt.

The filler neck was steaming? Normal. Mine does it anytime the engine is hot and the oil cap is off. Year round, even after an oil change. I make a point of removing the oil cap each I go to do work on my car so that I can let some of that moisture out instead of it condensing down there. I also take it off when I do this water injection, for the same reason. That steam comes out a little faster when the motor is revving.

Perhaps the water residue on the stick is from your first attempt.
Quite posible about the first attemp. I did not recive any steam from the filler cap the first attempt and recived alot of steam out the exhoust. this time the dip stick seemd to be under more presure and the filler cap i left on but it started steaming therew it ligthtly and thats when i stoped about .5 gallons into it. The exhoust this time recived no steam.

the vac line i used was the larger one in the front valance side of the 13b injection intake manifold and it was held on with a clamp requiering a small flat head screw driver.
Old 04-10-05 | 11:20 PM
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So guess who gets the "Melonhead of the Day Award"?



I did the water trick yesterday. And I was in a hurry to start other work on my 7, so I rushed it. To be specific, I fed the engine about 50oz of water in less than 5 minutes.

Later that afternoon I go to check the oil level. What I find on the end of the dipstick would best be described as "milkshake."

While searching this thread to announce my stupidity as a caution to others, I found this:

Originally Posted by RotaryResurrection
The only real worry you have here is not to use too much water at once...regulate the amount the engine consumes by clamping off the hose a bit (depends on the size of hose, too). The engine should run relatively smoothly at 3500rpm...if you have to hold it at 5 grand, you're letting in too much water.

Too much water at one time can actually bypass the sideseals and oil rings and contaminate the oil supply...which is bad. You want to let in enough to hit the hot face of the rotor and convert to steam, and that's it...not enough to be "sloshed" around by the rotor.
So there you have it. If you're going to do the water trick, and you don't want to follow it up with an oil change - TAKE YOUR TIME!

Last edited by Amur_; 04-10-05 at 11:32 PM.
Old 04-11-05 | 12:27 AM
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Stupid proxy errors.
Old 04-11-05 | 02:18 AM
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I see the search function works b/c you dug this one back up. latter
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