Focus ST intake manifold swap on a Fist "how to"

[JPGC]

One thing people need to be aware of is how the piston rings seal against the cylinder wall during engine operation.
Combustion pressure forces the rings down onto the ring lands and then out against the bore. Any foreign material that enters the cylinder gets force into the ring grooves and ends up stuck there.
As someone with a mechanical back ground, I would not run any of these cleaning solutions though a engine.

This also scares me about the walnut blasting.

 

[Sekred]

This also scares me about the walnut blasting.

I agree, there is only one do something properly, the hard and by that I mean pulling the cylinder head, strip, reassemble, refit.

 

[re-rx7]

One thing people need to be aware of is how the piston rings seal against the cylinder wall during engine operation.
Combustion pressure forces the rings down onto the ring lands and then out against the bore. Any foreign material that enters the cylinder gets force into the ring grooves and ends up stuck there.
As someone with a mechanical back ground, I would not run any of these cleaning solutions though a engine.

Never a problem with me. Most carbon is brittle after having contact with seafoam and literally vaporizes. If this was the case then no one would offer induction services anywhere as the risk would be to large.

This also scares me about the walnut blasting.

Valves are closed during service.

I agree, there is only one do something properly, the hard and by that I mean pulling the cylinder head, strip, reassemble, refit.

 

[MOFiST]

The other thing is walnut isn't super hard. Ask any gun smith. They use it to polish guns. It's also combustible. As re-rx7 said each cylinder is at TDC before starting the procedure.

 

[me32]

Yeah, I'll be at 36k this time next year, lol. I guess we will see. Shoot, it might be easier to just pull the head and replace the valves vice walnut blasting. BTW, do they pull the head to do the walnut blasting?

powertrain is 5/60k

 

[JPGC]

powertrain is 5/60k

Doesn't matter, Ford would probably laugh at me if I brought mine in for a warranty repair, lol

 

[Sekred]

Never a problem with me. Most carbon is brittle after having contact with seafoam and literally vaporizes. If this was the case then no one would offer induction services anywhere as the risk would be to large.

Valves are closed during service.

What risk?, the only real risk is shortening the engines service life.
The carbon vaporises, really?, so it breaks down and mixes with the sea foam and burns at what temperature?.

What is the warranty length in NA?, in Australia it is generally 3 years/100,000kms. A engine service life should exceed 250,000kms without a problem if its serviced correctly.

What I am trying to point out is just because BMW or some one else offer this kind of service does not mean it is technically correct or in the best interest of the engines service life.

 

[re-rx7]

What risk?, the only real risk is shortening the engines service life.
The carbon vaporises, really?, so it breaks down and mixes with the sea foam and burns at what temperature?.

What is the warranty length in NA?, in Australia it is generally 3 years/100,000kms. A engine service life should exceed 250,000kms without a problem if its serviced correctly.

What I am trying to point out is just because BMW or some one else offer this kind of service does not mean it is technically correct or in the best interest of the engines service life.

So its best interest is just to let the Carbon keep building up and up? Look up seafoam, read it very closely.

 

[Sekred]

So its best interest is just to let the Carbon keep building up and up? Look up seafoam, read it very closely.

No, didn't say that.
The carbon needs to be removed if it becomes a problem and probably well before that because of the cost to performance.
Looks like we are not going to agree on this seaform stuff, but that's ok, its part of a forum.
I won't bother researching It, I understand the theory on how it is supposed to work, just have no interest in using this type of method.

 

[me32]

Doesn't matter, Ford would probably laugh at me if I brought mine in for a warranty repair, lol

With your mods your prolly right

 

[RAAMaudio]

Warranty? Mine was gone at 273 miles when I started modding and you can buy a junkyard engine for the cost, or less, of a decent set of wheels and tires.

If you do pull the head at least do a moderate porting job while at it, doing a serious porting job is best left to somebody that really knows what they are doing but anybody can clean up obvious dirty flow areas.

 

[MOFiST]

I still reckon a small amount of meth on boost would be a good way to keep carbon/pcv residue down. I have heard the horror stories ie hydrolock which is what puts me off meth but if done properly with the right fail safes it'd be worth while.

 

[Sourskittle]

I still reckon a small amount of meth on boost would be a good way to keep carbon/pcv residue down. I have heard the horror stories ie hydrolock which is what puts me off meth but if done properly with the right fail safes it'd be worth while.

If you do it right, it works awesome. But one slip could be your last ( bent every rod in my srt4 due to a bad BRAND NEW check valve ). Lesson learned. Injector higher than tank, no matter what.

 

[iso100]

VW's fix for this issue is to remove the head, completely tear it down and to clean it by hand before reassembly. My brother recently had to do this to his 2.0t GTI to the tune of ~$1500. Of course it needed to be done outside of the factory warranty period.

 

[Sourskittle]

VW's fix for this issue is to remove the head, completely tear it down and to clean it by hand before reassembly. My brother recently had to do this to his 2.0t GTI to the tune of ~$1500. Of course it needed to be done outside of the factory warranty period.

I think its their was of saying "you need a ported head and head studs after you've owned the car a little while to keep it new and exciting", lol.

 

[JPGC]

I think its their was of saying "you need a ported head and head studs after you've owned the car a little while to keep it new and exciting", lol.

That's my thought....if your going to go back through the hassle, might as well upgrade

 

[DHM1]

I think its their was of saying "you need a ported head and head studs after you've owned the car a little while to keep it new and exciting", lol.

Hmmm head studs... I think I can get those for us! lol

 

[Sourskittle]

If I had the head off for ANY REASON, I'd be called ARP !

 

[JPGC]

If I had the head off for ANY REASON, I'd be called ARP !

No doubt...who wants to be the first, lol. It actually doesn't look to be that bad of a job once you get the covers and cowl out of the way. Hell Sourskittle, you have already pulled the turbo...should be cake after that!

 

[Sourskittle]

No doubt...who wants to be the first, lol. It actually doesn't look to be that bad of a job once you get the covers and cowl out of the way. Hell Sourskittle, you have already pulled the turbo...should be cake after that!

The turbo IS CAKE. I just opened my christmas/birthday present. We are supposed to be removing the cyborg at some point for inspection. I may just have to show you guys in REAL TIME how fast and easy the turbo comes off with my new Go-pro, lol.

The intake was not bad at all ( I was actually the assist for that one since it was not my personal car ). If we would have had a 5/16 ratching wrench it would have been a cake walk.

The part about the head that I would fear the most? The timing belt.