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How much Seafoam for N54
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09-03-2011, 03:03 AM | #1 |
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How much Seafoam for N54
I heard the valves on N54s get extremely dirty with carbon buildup and I wanted to use seafoam to clean it out. I was just wondering how much to use through the vacuum line.
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09-03-2011, 03:42 AM | #3 |
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I dont have the time to do that kind of cleaning, wat do you mean by safer. Is seafoam not safe? Does anyone know how much to put in?
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09-03-2011, 03:44 AM | #4 |
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Safer meaning that the carbon deposits are run thru the engine and if a chunk flys off some where and gets lodged on say ...a valve stem..your gonna have major problems
and it doesnt fully clean like a manual clean will |
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09-03-2011, 03:46 AM | #6 |
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and you just rev it while the vacuum hose that normally goes to the BOV is sucking up seafoam. Is that correct?
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09-03-2011, 03:48 AM | #7 |
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Not necessarily. You could have someone hold the RPM's at 1200 or do sip sip slurp method, basically just feeding enough seafoam before the engine would stall.
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09-03-2011, 03:50 AM | #8 |
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wat is the risk when using the seafoam?
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09-03-2011, 03:51 AM | #9 |
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"Safer meaning that the carbon deposits are run thru the engine and if a chunk flys off some where and gets lodged on say ...a valve stem..your gonna have major problems"
Not likely though. I've done it many times without issues. I am not responsible for you results however.
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09-03-2011, 04:10 AM | #11 |
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alright, could carbon buildup in the valves cause power loss. Cause lately i'd floor the car and when im in somewhat high rpms in 3rd or 4th i just feel like the power is gone, it feels like it drastically cuts the power, is this from carbon buildup or are the turbos just getting hot?
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09-03-2011, 05:13 AM | #12 |
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Take it easy with Seafoam, I have seen two engines "let go" because of this stuff. I posted this in a thread a little while about Seafoam and everybody said I was crazy but believe me it happened. The first time was when the Seafoam sales rep come around our shop to do a demo, so we let him do it on my brothers Yukon 20 minutes later knock, knock knock. The next time was done by a shop down the street (i cant remember what kind of car) and the same results. I know a lot of people use it without issue but not me.
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09-03-2011, 06:49 AM | #13 | |
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09-03-2011, 07:03 AM | #14 | |
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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09-03-2011, 01:25 PM | #15 |
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+1. Seafoam is (at least for auto engines) a last resort for a tired engine. If you haven't seen it work, check out some youtube videos. I rna it through my old Volvo S70t5a and no ill effects, but the smoke is horrific and the car will often backfire and run like a mess for an hour. Unless your car is sick and old, it's not worth the risk. No one will cover it if your eats something. . .
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09-03-2011, 01:40 PM | #16 | |
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09-03-2011, 07:56 PM | #17 |
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I hear ya on that one, I've never heard of too many "fix it all in a bottle" working very well.
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09-03-2011, 08:00 PM | #18 |
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My borescope is "in the mail".
I am a bit nervous at what I'll find when I use it to peer into the innards of my N54. If it looks a mess, I'm going to have to go in and do something about it--royal pain in the ass. But I couldn't leave it alone in that state.
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09-03-2011, 11:43 PM | #19 |
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09-04-2011, 07:07 AM | #20 | |
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09-04-2011, 10:22 AM | #21 |
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A proper physical, manual cleaning is the only thing that will make a real difference. The Seafoam won't do much of anything, except burn and fire out the exhaust.
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09-04-2011, 10:50 AM | #22 |
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