Subaru Upper Engine Cleaner review...

mx5lover · Postby **mx5lover** » Mon Dec 19, 2011 4:56 pm

spikes wrote:
mx5lover wrote:I used it on my 5 today, when I nearly finished the half of can through the vacum hose, the nozzle tube was suddenly disappear.
But I couldn't find it around my engine. Is that any possiblity the tube was sucked into the intake manifold when I rev the engine?

Mine got sucked into the port, it ended up sitting just outside the intake ports in the head. I knew it had been sucked down so I decided to pull the intake manifold off to fish it out. And whilst at it, gave it a good and proper clean as well

I am wondering, will it causes any problem if I leave it there.

spikes · Postby **spikes** » Mon Dec 19, 2011 5:00 pm

mx5lover wrote:
spikes wrote:
mx5lover wrote:I used it on my 5 today, when I nearly finished the half of can through the vacum hose, the nozzle tube was suddenly disappear.
But I couldn't find it around my engine. Is that any possiblity the tube was sucked into the intake manifold when I rev the engine?

Mine got sucked into the port, it ended up sitting just outside the intake ports in the head. I knew it had been sucked down so I decided to pull the intake manifold off to fish it out. And whilst at it, gave it a good and proper clean as well

I am wondering, will it causes any problem if I leave it there.

Probably not, its just a piece of plastic that probably won't make it past the valves/or it'd just melt and burn along with the combustion process.
But just for peace of mind, I'd fish it out. Not too hard removing the intake manifold, probably a two hour job for first timer, as you do it again and again, you'll get quicker

mx5lover · Postby **mx5lover** » Mon Dec 19, 2011 10:54 pm

spikes wrote:
mx5lover wrote:
spikes wrote:
mx5lover wrote:I used it on my 5 today, when I nearly finished the half of can through the vacum hose, the nozzle tube was suddenly disappear.
But I couldn't find it around my engine. Is that any possiblity the tube was sucked into the intake manifold when I rev the engine?

Mine got sucked into the port, it ended up sitting just outside the intake ports in the head. I knew it had been sucked down so I decided to pull the intake manifold off to fish it out. And whilst at it, gave it a good and proper clean as well

I am wondering, will it causes any problem if I leave it there.

Probably not, its just a piece of plastic that probably won't make it past the valves/or it'd just melt and burn along with the combustion process.
But just for peace of mind, I'd fish it out. Not too hard removing the intake manifold, probably a two hour job for first timer, as you do it again and again, you'll get quicker

I probably just leave it there now, hopefully it will be burned away. I dont have a garage to work on my 5, and too much rain in Sydney this summer.
I'd do careful next time.

bub181 · Postby **bub181** » Sat Mar 17, 2012 7:53 am

I have a 2007 NC model with 120k on the clock. Would it be useful doing this to the engine? Has anyone here done it on a NC?

Postby **NitroDann** » Sat Mar 17, 2012 9:57 am

What fuel and service history has the car had?

Dann

marty085 · Postby **marty085** » Sat Mar 17, 2012 10:51 am

I used this stuff on a 155,000km roadster import with unknown service history last year and it started blowing copious amounts of thick oily smoke in the mornings within just a few days. Maybe carbon Was holding the engine together. Just getting engine completely rebuilt now. Will never use this stuff again. Seriously. A Mazda dealer mechanic basically said "what the f**k did you use that stuff for... Why are all you kids using that stuff" and got angry at me as if I'd hurt one of his children.

I guess the smoke could have been completely unrelated to the upper engine cleaner but i wont take the risk again on an older engine with unknown history. And of course the smoke I'm talking about was different to the white smoke that the engine cleaner procedure makes.

initial D · Postby **initial D** » Sat Mar 17, 2012 11:36 am

wowz maybe u used tomuch?

marty085 · Postby **marty085** » Sat Mar 17, 2012 5:04 pm

Dunno. Every single thing i read said to just use the whole can.

zephyrus17 · Postby **zephyrus17** » Sat Mar 17, 2012 6:15 pm

Did you let the engine die after the first spray?

I have to say, though, that cleaner didn't do much to my engine. Only a bit of smoke, and that's it. Does it mean my engine's clean? Highly doubt it at 180,000kms, but it might not have just done much

Postby **NitroDann** » Sat Mar 17, 2012 6:24 pm

If you run premium, keep good oil in it, and you dont have blow by its unlikely this stuff will help much.

Dann

Sailor · Postby **Sailor** » Sat Mar 17, 2012 7:50 pm

NitroDann wrote:If you run premium, keep good oil in it, and you dont have blow by its unlikely this stuff will help much.

Dann

Indeed!
Subarus need it and need it often because they are not a particularly good engine design with lots of oily blowby and subsequent fouling of the inlet tract.

Postby **NitroDann** » Sat Mar 17, 2012 7:56 pm

To be fair, they just have a lot more liquid blowby, as opposed to gas blowby due to the heads being so low compared to the sump.

But yeah.

Dann

marty085 · Postby **marty085** » Sat Mar 17, 2012 10:06 pm

NitroDann wrote:If you.. keep good oil in it

Dann, what do you consider "good oil"? Note: I'm not asking what oils ppl use as has been asked many times. Just wondering how i can tell a good oil from a bad oil... Reputable brand? I am intending to simply use good brand dino oil (eg Castrol magnatec or something) in my newly rebuilt engine along with premium fuel.