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Introduce yourself!! Tell me something about you and your history with rotary.. |
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#1 |
The Newbie
Join Date: Oct 2008
Posts: 4
Rep Power: 0 ![]() |
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Hi
Iīm Repairing Now A Rx-7 2š Gen. Turbo I Have A Starting And Idle Problems And Im Looking Some Info I Have Service Manual I'm Chilean But I Live In Spain 33 Years Old Mechanic Technician But No Experience In Rotary Engines I Have Learn A Lot With This Car Bye |
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#2 |
My minds tellin' me no...
Join Date: Feb 2008
Location: Murfreesboro, TN
Posts: 4,043
Rep Power: 22 ![]() |
Welcome.
Starting and idle problems with a 2nd gen can be several things. We need some more info. Is the car unmodified? Have you checked for vacuum leaks? Are the injectors leaking? How is the compression? I hope we can help you out!
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1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5 |
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#3 |
The Newbie
Join Date: Oct 2008
Posts: 4
Rep Power: 0 ![]() |
no mods
i have checked vacuum promblems, i have change some pipes and rubbers... all ok i have checked bac valves and fast idle valve and turbo all ok its hard to start always, cold, hot, warm... when the car fails it was in highway at 80 mph half gas pedal. it sneez pum!! and continues working but when i loose pedal no idle at all and very hard to start but when engine starts it have good power, no smokes... i need some tricks to check compression and injector i didīt check yet thanks! |
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#4 |
RCC Contributor
Join Date: Feb 2008
Location: Buenos Aires, Argentina
Posts: 679
Rep Power: 18 ![]() |
Bienvenido!
Contactate con Richard Marin en Chile, el es el mecanico mas reconocido de rotarios
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![]() www.rx7club.com.ar RX-7 Forum in Spanish I make custom decals. Yes, you can ask me |
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#5 | |
FUCK the fucking fuckers
Join Date: Mar 2008
Location: THE only Bay Area, Northern California
Posts: 3,172
Rep Power: 20 ![]() |
did you do a compression check?
You're supposed to get 3 even pulses per rotor. 90+psi is a good healthy motor 80s it's a weakening motor less than 80 means engine rebuild is inevitable. Bad starting means low compression. The highway incident sounds like you may have blown an Apex seal. Any modifications? Digame si prefiere Espaņol. Bienvenido.
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Quote:
![]() Last edited by Phoenix7; 10-06-2008 at 11:02 PM. |
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#6 |
RCC Contributor
Join Date: Feb 2008
Location: Orlando, Fl
Posts: 661
Rep Power: 18 ![]() |
Bienvenido
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#7 |
The Newbie
Join Date: Oct 2008
Posts: 4
Rep Power: 0 ![]() |
compresion
Hola
esta vez en espaņol por que mi ingles no es muy bueno he oido que para hacer un chequeo de compresion se conecta un compresimetro pero hay que eliminar la valvula de retencion de este. para que al leer una cara del rotor descargue y lea la proxima es correcto?? muchas gracias a todos ![]() |
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#8 | |
FUCK the fucking fuckers
Join Date: Mar 2008
Location: THE only Bay Area, Northern California
Posts: 3,172
Rep Power: 20 ![]() |
Es correcto. Si deja la valvula no le va a dar los numeros correctos. Solo le va a dar la compression de la cara del rotor que tiene la mejor compression.
Ejemplo: 80, 95, 70. Con la valvula activada solo va a ver el 95. Tiene que ver y procurar que todas las caras del rotor sean iguales. 3 pulsos parejos de 80 psi o mas.
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Quote:
![]() Last edited by Phoenix7; 10-07-2008 at 05:06 PM. |
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