NoPistons -Mazda Rx7 & Rx8 Rotary Forum
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NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Blew Up Again... (https://www.nopistons.com/3rd-generation-specific-18/blew-up-again-10459/)

SPEED_NYC 01-10-2003 12:45 PM
my condolences.....

j9fd3s 01-10-2003 12:48 PM
Originally Posted by vosko' date='Jan 10 2003, 10:27 AM
his engine has mazda 3mm seals in it
how high do you rev it?



mike

Silver Ninety Three 01-10-2003 01:43 PM
Originally Posted by cymfc3s' date='Jan 10 2003, 06:27 PM
what was your knock reading on the powerFC?
Knock reading on the PFC means nothing. Its just noise. I've heard that its common to get a hig knock reading on decceleration from all the engine and drivetrain noise.

Silver Ninety Three 01-10-2003 01:45 PM
Originally Posted by Judge Ito' date='Jan 10 2003, 11:24 AM
Ihor remember when I installed the diff. at my shop? I told you your idle seemed not normal. In my opinion the engine had a sound like a hurt apex seal. I think your engine was previously hurt from prior high boost when your wastegate was giving you problems. I made that comment to Vosko, about how your idle was not normal.
I don't think it was previously hurt. Was making good power. I made 470 to the wheels at 19-20 psi a few weeks ago. As far as I remember, my idle always sounded like that.

j9fd3s 01-10-2003 01:45 PM
so how high did you rev it?



mike

Silver Ninety Three 01-10-2003 01:46 PM
Originally Posted by s13srmadness' date='Jan 10 2003, 06:11 PM
are you going to rebuild it, or buy a reman, or???
If KDR warranties it, I will pull the motor and have them rebuild it. Otherwise I'll pull it at Steve's house when I move to Texas next month and rebuild it myself under his supervision.

Silver Ninety Three 01-10-2003 01:48 PM
Originally Posted by j9fd3s' date='Jan 10 2003, 07:45 PM
so how high did you rev it?



mike
I was maybe at 5000-6000 rpm when it blew. I eased into the gas to pass another car and lost power.

j9fd3s 01-10-2003 01:49 PM
hmm i mean like when you are beating on it, it seems that the 3mm mazda seals dont like over 7500rpms



mike

Silver Ninety Three 01-10-2003 01:50 PM
Ito, it seams like all three seals on the front rotor are damaged. When I crank it with the front leading plug removed it just sounds like it is flooded, no compression. The rear rotor makes uniform and strong wooshes. If it was a previously damaged seal, then wouldn't just that one seal break instead of all three?

j9fd3s 01-10-2003 01:53 PM
its possible peices from the damaged seal broke the others, are they still in there? usually the 3mm seals like to "leave the building"



mike


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