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RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   3rd Generation Specific (1993-2002) (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/)
-   -   don't use seafoam (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/dont-use-seafoam-856256/)

pomanferrari 08-10-09 12:00 AM
Originally Posted by jdhuegel1 (Post 9415246)
The odd part is that 8oz was added to the oil, which will make it's way to the combustion chamber, but in very small amounts. Would a very small amount diluted in oil still cause detonation?
These were the only changes made:

1. seafoam 8oz.
2. four new 9s plugs.

Nothing else were made to the car. Same road, same condition as traveled hundreds of times before. Note that I have a new Supra pump, new fuel filter, new 4x850s injectors, new FPR.

So:

a. the seafoam dislodged a piece of carbon
b. the seafoam injected into the combustion chamber caused an out of control flame front

either a or b or both a and b will cause the engine damage.

I heard a pop at full throttle so my guess is (b).


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