Intake manifold cleaner injection port

[Meccles]

Where is best place to squirt diesel inlet manifold cleaner into on 3.0SDV6? Car does too many "easy" miles and is sooting up I want to start regime of inlet manifold/upper cylinder cleaner - same as we do for the Subaru

[Tombie]

As long as that regime is followed immediately
By an Oil Change [emoji41]

Keep in mind it is still depositing the Carbon Grinding Paste directly into the Cylinders... never a good thing regardless of what they say..

Better to organise EGR closure.

[Meccles]

How? I haven't seen anything conclusive on these motors but certainly would like to.

[DiscoJeffster]

It's definitely a concern of mine. The sludge built up in the intake is horrendous however having that sludge hit my cylinders in one go via some form of cleaner does not seem like a smart move. The thought of that built up oil and carbon hitting the cylinders and rings is not appealing and likely have a negative affect on wear. If you take a look at the EGR thread you'll see the EGR photos I posted. Think about that hitting your cylinders. It might be ok, but I'm not sure I'd risk it.

[Meccles]

On the Subaru this cleaner is used every service as per OEM. I doubt that using a cleaner first time will clean most or do damage. Of course it's oil change straight after. But, in time, over every service, reckon it will help. Re it going into engine the choices are pull it all apart to clean or give this a go. Again how do you blank off EGRs on the 3.0 SDV 6?

[DiscoJeffster]

https://www.aulro.com/afvb/images/imported/2017/05/604.jpg
https://www.aulro.com/afvb/images/imported/2017/05/605.jpg

[DiscoJeffster]

I just don't think that going through your engine is a great idea.
My engine hasn't had the second turbo oil feed update which probably explains the oiliness of the carbon build up as I believe more oil ends up in the intake without it

[Tombie]

You need to get the ECU remapped to close EGRs...

Not necessarily ask for more power - you can go EGR close only..

[Meccles]

Sorry that doesn't answer my question. How what is best injection point for cleaner? And second how to disable EGR?

[Meccles]

Ok Tombie thanks your reply popped up after I asked question so know the answer to second part. But what about first? And good ideas?

[Tombie]

There is NO good point for shooting that stuff into the engine....

It's not a good thing to drive that muck into the motor...

Subaru Upper Engine Clean is similar to what we use on 2 stroke Marine...

If you want the muck out of your 3.0 - pull the intake off.... short cuts will cost engine wear.

[DiscoJeffster]

So if I was going to do it I'd remove the plastic 90 degree bend before the throttle body, spray it into there to clean the EGR intake and front left and right runners which seems to be where the crap accumulates. Leave it for 5 minutes while reassembling. Start run, stop. I'd then remove the map sensor (top of throttle body / intake divider and spray in more there towards left and right sides of the intake. Etc. There are also some obvious vacuum lines you could unplug to inject it whilst running however you'll like flag an error as they're all there for a reason so disconnecting one to spray stuff into the engine might make it sad with ypu

[veebs]

https://www.aulro.com/afvb/images/imported/2017/05/604.jpg
https://www.aulro.com/afvb/images/imported/2017/05/605.jpg

Bit of a noob question - is there a 'how to' anywhere on accessing these parts in order to clean? I have a workshop manual, but it's not particularly well laid out, with an index etc...

[Meccles]

Went back to Tuner the EGR are now closed except at start up. They updated tune while at it- must say car runs smoother and I believe quieter. No discernible difference in power which is great as power on previous tune was very good. Actually I thought service was excellent from this group. All done FOC

[simmo1]

Meccles, which crew did you go to for the tune?

Simmo

[Meccles]

I used Roo systems their head office in Banjo. Really couldn't complain about them other than price. They did exhaust ( which my local mechanic reckons is excellent) tune and fitted LLAMs for me.

[simmo1]

Meccles,

Thanks for that. I contacted ROO Systems with a query about EGR delete. They rang back and did the hard sell about including a tune and did say that the tune is detectable by the diagnostics software when being serviced. He also very strongly recommended an oil catch can. Have you, or anyone else fitted an oil catch can? From what I understand all the goop that forms the clogging up is essentially from the oil mist from the PCV. Mixes with the EGR gas with a not very good result.

I have a 2014 RRS TDV6 which is still under warranty so a bit nervous about doing this untill out of warranty.

Cheers, Simmo

[Meccles]

I waited until I was out of warranty before I did anything. They are correct any work done can be picked up. Re catch can, got a quote - it's a difficult job due to space etc- and decided against it.