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What are your recommendations to prevent carbon buildup on valves?

This is a discussion on What are your recommendations to prevent carbon buildup on valves? within the Focus RS Discussions forums, part of the Focus RS Forums category; Originally Posted by Molez93 Funny, I was going to ask how much folks think that helps. I know for the high strung BMWs I own ...

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Thread: What are your recommendations to prevent carbon buildup on valves?

  1. #21
    RS Specialist Bluebyutoo's Avatar
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    Quote Originally Posted by Molez93 View Post
    Funny, I was going to ask how much folks think that helps. I know for the high strung BMWs I own (or once owned) a common recommend "maintenance" behavior was a WOT redline run once at full operating temp each time you took it out.
    a.k.a. "The Italian Tune Up"

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    RS Pro MN_RS's Avatar
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    Quote Originally Posted by Bluebyutoo View Post
    a.k.a. "The Italian Tune Up"
    "Officer, I was just performing mandatory maintenance for my engine... All the way from 1st-6th WOT to redline."
    Focus RS Nitrous Blue RS1 Purple Drank Tuned. Built short block. Cams. Precision Turbo. Mishimoto 3" NB Intake. ETS Black Anodized FMIC & Charge Pipes. TS BPV. GrimmSpeed lightweight battery tray. Boomba RMM. RokBlokz Rallye Flaps. Custom 3.5" turbo-back exhaust w/ valved cutout. Enkei NT03+m 18x9.5et40. UPR Crankcase Breather. Whiteline Springs and RSB. AutoStyled Short Shift. Aquamist Direct Port Meth Injection kit. Boomba Intake Manifold Spacer. TurboTech PMM and TMM. Verus Rear Diffuser.

  3. #23
    RS Specialist Camper Van Someren's Avatar
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    Quote Originally Posted by Madokami View Post
    Catch cans to mitigate, port injection to prevent.

    Both will void your warranty though, so damned if you do damned if you don't. ¯\_(ツ)_/¯
    Yes, I was thinking of starting a thread about how to deal with this buildup for those of us who want to keep our warranties.

    Ford has said not to use seafoam or other cleaners as it can damage turbos, either the chemicals on the seals or fragments of gunk on the vanes. At the same time they haven’t come up with an approved maintenance service (that I know of) for dealers to clean the buildup off valves.

    I think after the HG issue gets sorted and our cars get up in mileage, this may be the next big issue that we need to take up with Ford.
    Current: 2017 Frozen White Focus RS, 2001 Ranger XLT 4x4, 2015 Sienna AWD

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    Supporting Member Madokami's Avatar
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    Does anyone know how effective Seafoam fed through the intake is at cleaning the valves?

    Edit: Got sniped by Camper Van Someren

    Maybe port injection is in my future. Now, 4 port or a single port as with Stratified's solution.
    Frost White RS is best RS.

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    Quote Originally Posted by Madokami View Post
    Catch cans to mitigate, port injection to prevent.

    Both will void your warranty though, so damned if you do damned if you don't. ¯\_(ツ)_/¯
    Where have you seen anything on catch cans voiding the warranty?
    2017 NB RS1
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    Radium has dual oil catch set up and a breather plate. I normally use Redline Injector cleaner every 5K miles or so or every oil change.


    Sent from my iPhone using Tapatalk

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    Supporting Member Madokami's Avatar
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    A dealer could deny the warranty if they see it, and all they have to say is that it has modifications.

    There's also this guy. Mods are forever on his car's file at FoMoCo.

    Ford Dealer is denying warranty coverage due to Oil Catch Can

    Quote Originally Posted by Biznatch View Post
    Where have you seen anything on catch cans voiding the warranty?
    Frost White RS is best RS.

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    Quote Originally Posted by Madokami View Post
    A dealer could deny the warranty if they see it, and all they have to say is that it has modifications.

    There's also this guy. Mods are forever on his car's file at FoMoCo.

    Ford Dealer is denying warranty coverage due to Oil Catch Can
    Ford has to prove the catchcan caused the failure to deny warranty for any issue.


    That thread ended up showing the guy blew up his engine with an e85 tune and tried to lie to ford and get it fixed. That's the risk you take with a tune, and we've seen at least a couple examples. Nothing about catch cans, and multiple people have them on when getting the FSA done.
    Madokami likes this.
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    RS Specialist Camper Van Someren's Avatar
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    What are your recommendations to prevent carbon buildup on valves?

    Quote Originally Posted by Biznatch View Post
    Ford has to prove the catchcan caused the failure to deny warranty for any issue.


    That thread ended up showing the guy blew up his engine with an e85 tune and tried to lie to ford and get it fixed. That's the risk you take with a tune, and we've seen at least a couple examples. Nothing about catch cans, and multiple people have them on when getting the FSA done.
    This has been discussed many times. I don’t think they have to prove the catch can did cause failure, only that it could have. Some dealers will be more friendly than others, but if you find an unfriendly dealer, they can deny warranty for whatever mods they want. Then it’s up to you to take it up with Ford corporate or with a lawyer. The theoretical justification is that a defective or improperly installed can will cause you to lose crank-case vacuum. This can in turn mess with the stock tune and lead to knock etc.

    Edit: Both of these videos (one from a Ford service employee) mention that catch can may void warranty.

    https://jalopnik.com/here-are-the-pr...ion-1823295996

    Last edited by Camper Van Someren; 03-01-2018 at 04:38 PM.
    Current: 2017 Frozen White Focus RS, 2001 Ranger XLT 4x4, 2015 Sienna AWD

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    Supporting Member Madokami's Avatar
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    That's what I get for not reading the whole thread!

    Regardless, it's as @Camper Van Someren (Still don't know how to tag users) said, they can void it regardless over what amounts to a BS reason given a proper installation.

    Quote Originally Posted by Biznatch View Post
    Ford has to prove the catchcan caused the failure to deny warranty for any issue.


    That thread ended up showing the guy blew up his engine with an e85 tune and tried to lie to ford and get it fixed. That's the risk you take with a tune, and we've seen at least a couple examples. Nothing about catch cans, and multiple people have them on when getting the FSA done.
    Frost White RS is best RS.

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