NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Trouble Shooting (https://www.nopistons.com/3rd-generation-specific-18/trouble-shooting-29670/)

Danno 12-03-2003 02:08 PM

I have had other posts on this but i want to satr at fresh one now.



Heres are the problems:



1- rough idle



2- muffled exhaust



3- just replaced fuel lines before problem started( Had a fuel leak)



4- Oil in intake piping, air filter. This oil is much more than just blow by. The BOV has been blowing oil out.



5- Car shakes ALOT! when running



I did a compression test witha gauge that goes up to 300 psi and it read 90psi on that gauge from both lead plug holes.



thanks for the help guys.

Danno 12-03-2003 02:35 PM

Maybe I didn't do the compression check right??

fritzfry 12-03-2003 05:19 PM

when you say 90 is that seeing the needle bounce up and down to 90? my manual says a minimum of 100 psi at 250 rpm is spec but i'm not sure if 90 is good, still ok, or bad. (at least it wasn't zero like i'm getting on my rear rotor https://www.nopistons.com/forums/pub...O_DIR )



are you getting smoke? if you've had this post before then i'm sure you already checked the map...that was something suggested to me.



good luck bro



fritz

Danno 12-05-2003 09:00 PM

What do you mean by checking the map? I am gonna redo my compression test to see whats up.

Dumbrotorkid 12-05-2003 11:29 PM

make sure that the map sensor didnt come off. mine has come off before and it feels like all hell broke loose. exhaust smokes real bad idle.

Fd3BOOST 12-06-2003 12:15 AM

The oil is most likely a seconday problem. My guess is that your turbos oil seals are shot.



As far as the rest I think rotorkid has it. Check the map sensor vacum line. It is located on the firewall right above the fuel lines that you say you just replaced so it would make sense that you might of cracked the line or knocked it off.







Cheers https://www.nopistons.com/forums/pub...1047683329.gif


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