2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

How long do you leave SEAFOAM in?

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Old Apr 1, 2008 | 04:40 PM
  #26  
MADDSLOW's Avatar
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Originally Posted by Spectator
Are you serious?
I believe "carbon buildup" is "carbon buildup", regardless of what type of motor it is in. If the seafoam didn't work on metal parts in one engine, why would it work on the metal parts of an engine that works in a different manner?

I'm wondering if the combustion process is what makes Seafoam work...
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Old Apr 1, 2008 | 04:51 PM
  #27  
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you understand how a rotary engine works right?
Yep, i know - I'm in no way an expert on rotary's, or pistons for that matter lol, but its not rocketscience either. Im helping my coworker rebuild his 3rd gen.

I also suggested that seafoam was bad for an engine's seals - based on what i found with my piston engine.

Was only submitting some food for thought on my personal experiences with seafoam. Seafoam doesnt know if its a rotary or not - they both have oil seals and bearings, and if seafoam can screw up one type, there's no reason why it cant screw up the other.
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Old Apr 1, 2008 | 05:16 PM
  #28  
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Originally Posted by VacavilleFC
you understand how a rotary engine works right? triangle spinning around at high rpms with
Yeah Yeah Yeah!!!

Originally Posted by VacavilleFC
carbon seals on the 3 edges
Wait...what??
Unless you put carbon seals in there...they are metal. Steel I believe.
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Old Apr 1, 2008 | 05:18 PM
  #29  
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Originally Posted by Corey Darling
seafoam can screw up one type, there's no reason why it cant screw up the other.
Not really...
Understanding how things work is the only way you can determine if A is bad for B
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Old Apr 1, 2008 | 05:26 PM
  #30  
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sorry your right metal, carbon is aftermarket i apologize
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Old Apr 1, 2008 | 05:51 PM
  #31  
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Originally Posted by VacavilleFC
you understand how a rotary engine works right? triangle spinning around at high rpms with carbon seals on the 3 edges, the oil lubricates them creating compression and also keeps them from damaging the housings. strip that lubrication away and theres no longer anything protecting the the rotors from scratching the housing, you lose some compression also think about all the bearings inside that are no longer lubricated. also seafoam is corrosive, it could damage internal seals.

if i was going to seafoam a motor, i'd leave only leave it in for a couple hours at most and then clean the system out completely. but most likely i'd never do it in the first place
Plus, the side seals are rubber - and exposing them to what is effectively a solvent is likely to cause them to swell. Which will initially cause better sealing. Then, increased wear from being swollen will couple with them shrinking again over time as they "dry out" to leave them in poorer shape than before.

I'm with those who say that if you want to Seafoam, change the oil right away.
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Old Apr 1, 2008 | 09:33 PM
  #32  
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honestly anything that it hasn't gotten off by now isn't gonna come off, soaking the rubber parts in your motor in solvent for this long will be really bad, please take it out, look at what everyone is saying
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Old Apr 1, 2008 | 10:47 PM
  #33  
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i wouldnt use it in my car, BUT me and my buddy did use it in the 4runner he bought, some people didnt like the guy he got it from so they put sugar in the gas tank, and ill tell you what, that **** cleaned out the whole fuel system in about 5mins.
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Old Apr 1, 2008 | 11:28 PM
  #34  
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on a dirty ol piston motor i'm sure it could do wonders,
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Old Apr 2, 2008 | 01:40 AM
  #35  
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Originally Posted by rotary-guy
that **** cleaned out the whole fuel system in about 5mins.
exactly why it shou;dn't be left in the oil for 200 plus miles
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Old Apr 2, 2008 | 06:14 AM
  #36  
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I got over 300 on it now. I am replacing the filter and oil tonight.

I have to say. I have nothing, but good things to say about SEAFOAM.

Thanks for all the advice.

I am going to try a MMO mixture tonight.
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Old Apr 2, 2008 | 11:07 AM
  #37  
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I put Seafoam in my oil for 200 miles on a N/A S4 Stock motor. That was 2k miles ago. I have no complaints. A friend of mine who drives my car asked what I did differently to it(had a stronger pull), so it must not be a placebo effect because he didn't know anything about it.
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Old Apr 2, 2008 | 11:26 AM
  #38  
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I feed it in through the intake.. once the can is in I shut the car off wait 5 minutes then start and go for a drive...

cleans it right up..
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