I finally got around to cleaning my engine with SeaFoam, and once again the H6 is a totally different animal compared to the H4.
What first caught my attention, and caused me to double check all the information on this site, and in the engine service manual. Is that the PCV valve is set up in the reverse order of the H4 engines.
The PCV valve is located on the driver’s side of the engine under the spark plug coil packs, a tube then runs up to the center of the intake manifold, which attaches to a nipple that goes directly into the chamber.
The H4 is opposite of the H6; a tube comes up from the crankcase, which runs to the PVC valve, which screws into the intake manifold, then into the chamber.
So for us often groping in the dark H6 owners, I had the GF snap a couple of pics of the process. Once I assured her that I “probably” wasn’t going to blow anything up that is. lol
Unfortunately, I was not able to convince her to model the process for us. This would have been a much more exciting viewing experience.:12:
(1) First start with a cool engine, pop the hood and remove the Motor cover from your H6 engine. Thanks Peaty!
http://www.scoobymods.com/forums/showthread.php?t=4143
Hopefully, after you properly remove your motor cover, you won’t flip it over only to discover something like this. Yes, I am on my way today to have a few words with the service department manager at my local Subaru smasher dealership. If they ever want my business again, they are going to replace it.
You would think a Subaru trained service technician would know how to properly take off the engine cover. Do they even read the manuals anymore?
(2) Next, never totally trust anyone when it comes to the health of a very expensive piece of equipment. So locate your PCV valve, then trace the gas tube to your intake.
This is where the gas tube enters the intake:
Reference shot:
(3) Now you can begin to SeaFoam your engine. Follow these directions. Thanks Random!
But, you have the key to turn that baby back on, just tease your nipple along its mouth and it will eagerly lap up the goodies.
Sorry couldn’t help it. This would have been allot better if the GF had agreed to lean over and do this part for me. :17:
It took a couple of minutes to empty the 5+ OZ from the bottle. You could probably drill a small air hole in the bottle then put the nipple directly in contact with the intake nipple, and it would feed much faster.
But, since this was my first time, and with the fear of hydro-lock in my mind; I went slow and easy.
If you try it faster and it works, please post your results and procedure; if you screw up and hydro-lock your engine, well, that's on you.
Please post those results as well, as a lesson learned.:14:
So here are the boring pics of what it should look like:
Note: I didn’t get a lot of smoke while doing this procedure, but I knew that all this stuff had to be going somewhere.
So after the final step, and a good long warm-up; I re-assembled the engine.
Since I-95 is less than a mile from my house. I popped in a White Zombie CD, strapped the GF into the passenger seat, and went for a leisurely engine run-in.
I took it easy till I reached the on-ramp, waited for the entire ramp to be clear, dropped her in 3rd gear, and FLOORED IT!
I must have laid down an eighth of a mile smoke screen! It was awesome! I had the car up to 105 in no time flat. The little hesitation I had before was gone by the time I got home again.
I did this a couple of different times and at different speeds during the run-in, never keeping at one constant speed or RPM, as per a regular break in routine.
Note: As expected after I was all done I had a CEL, but after 3 or 4 startups and shutdowns, the CEL went out. Thanks FMGreen!
Warning! If you have children, especially little girls, like I do. After you have completed this process THROW AWAY the baby bottle! It's impossible to hide stuff like this from children, they WILL find it. To eliminate the possibility of your child finding this bottle and playing or drinking from it. GET RID OF IT!
It was only $1.25 It's not worth endangering the health of your child. You have been warned.
Note: No children were poisoned in the making of this tutorial. I am just a very cautious person when it comes to my kid.
What first caught my attention, and caused me to double check all the information on this site, and in the engine service manual. Is that the PCV valve is set up in the reverse order of the H4 engines.
The PCV valve is located on the driver’s side of the engine under the spark plug coil packs, a tube then runs up to the center of the intake manifold, which attaches to a nipple that goes directly into the chamber.
The H4 is opposite of the H6; a tube comes up from the crankcase, which runs to the PVC valve, which screws into the intake manifold, then into the chamber.
So for us often groping in the dark H6 owners, I had the GF snap a couple of pics of the process. Once I assured her that I “probably” wasn’t going to blow anything up that is. lol
Unfortunately, I was not able to convince her to model the process for us. This would have been a much more exciting viewing experience.:12:
(1) First start with a cool engine, pop the hood and remove the Motor cover from your H6 engine. Thanks Peaty!
http://www.scoobymods.com/forums/showthread.php?t=4143
Hopefully, after you properly remove your motor cover, you won’t flip it over only to discover something like this. Yes, I am on my way today to have a few words with the service department manager at my local Subaru smasher dealership. If they ever want my business again, they are going to replace it.
You would think a Subaru trained service technician would know how to properly take off the engine cover. Do they even read the manuals anymore?
(2) Next, never totally trust anyone when it comes to the health of a very expensive piece of equipment. So locate your PCV valve, then trace the gas tube to your intake.
This is where the gas tube enters the intake:
Reference shot:
(3) Now you can begin to SeaFoam your engine. Follow these directions. Thanks Random!
Note: The tricky part has always been to feed the SeaFoam into the intake without hydro-locking the engine. But, thanks to a very clever member of this forum, the problem was ingeniously solved. So put away the pride, head down to the local dollar store (before you begin tearing into your engine) and pick up a cheap baby bottle. Thanks jajones480!
When feeding the SeaFoam to the engine you must keep the bottle nipple a quarter to a half inch away from the manifold nipple. If you let your baby get greedy, it will suck the nipple down, suddenly block off the air flow, and choke itself. (engine will die)
But, you have the key to turn that baby back on, just tease your nipple along its mouth and it will eagerly lap up the goodies.
Sorry couldn’t help it. This would have been allot better if the GF had agreed to lean over and do this part for me. :17:
It took a couple of minutes to empty the 5+ OZ from the bottle. You could probably drill a small air hole in the bottle then put the nipple directly in contact with the intake nipple, and it would feed much faster.
But, since this was my first time, and with the fear of hydro-lock in my mind; I went slow and easy.
If you try it faster and it works, please post your results and procedure; if you screw up and hydro-lock your engine, well, that's on you.
Please post those results as well, as a lesson learned.:14:
So here are the boring pics of what it should look like:
Note: I didn’t get a lot of smoke while doing this procedure, but I knew that all this stuff had to be going somewhere.
So after the final step, and a good long warm-up; I re-assembled the engine.
Since I-95 is less than a mile from my house. I popped in a White Zombie CD, strapped the GF into the passenger seat, and went for a leisurely engine run-in.
I took it easy till I reached the on-ramp, waited for the entire ramp to be clear, dropped her in 3rd gear, and FLOORED IT!
I must have laid down an eighth of a mile smoke screen! It was awesome! I had the car up to 105 in no time flat. The little hesitation I had before was gone by the time I got home again.
I did this a couple of different times and at different speeds during the run-in, never keeping at one constant speed or RPM, as per a regular break in routine.
Note: As expected after I was all done I had a CEL, but after 3 or 4 startups and shutdowns, the CEL went out. Thanks FMGreen!
If you don’t feel like waiting for your CEL to go off on its own you can always do this trick. Thanks ivwarrior!
And now you’re all done. Enjoy!
Warning! If you have children, especially little girls, like I do. After you have completed this process THROW AWAY the baby bottle! It's impossible to hide stuff like this from children, they WILL find it. To eliminate the possibility of your child finding this bottle and playing or drinking from it. GET RID OF IT!
It was only $1.25 It's not worth endangering the health of your child. You have been warned.
Note: No children were poisoned in the making of this tutorial. I am just a very cautious person when it comes to my kid.