My car made a sucking noise when I unplugged the BPV and CRV hoses from the airbox (yes I plugged the box), so I installed one-way check valves on the ends of each hose. They stopped the sucking sound and gave me awesome sounding "PSHHHH" noises whenever I let off of the throttle. MY WARRANTEE COMPANY SAYS THOSE VALVES WERE "BLOCKING TURBO LINES, THEREFORE RAISING BOOST PRESSURE!" One of my coolant seals is now bad, and they say that they won't repair/replace the engine because it was probably running higher boost. CAN ANYONE THINK OF ANY REASON WHY THOSE VALVES WOULD HAVE HAD ANY EFFECT ON BOOST LEVELS. I THINK MY WARRANTEE CO. IS SMOKING CRACK, CUZ THOSE VALVES JUST HELP MAKE A CLEARER "PSHHH" NOISE! The DYNO numbers were the same before and after too! PLEASE respond with any comments, questions or ideas!
THANKS, Kevin (KEMRX7@aol.com / AIM--->KEMRX7)

 

I wont be able to post any pics of the valves on my 95 RX-7 because it is at RP in Garland, but my friend has the same set-up on his Turbo II, so I will try to post pics of that. Thanks in advance for any input, Kevin

 

all i can say is good luck.

 

PLEASE GO HERE TO SEE A PIC OF THE STYLE VALVE I WAS USING. THE VALVE IS LOCATED IN THE TOP LEFT PART OF THE TII's ENGINE BAY!
www.angelfire.com/dc/dcamco/images/engbay.jpg
THANKS ALOT, Kevin

 

Which warranty company is it?

 

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C'mon guys....does anyone have any advise as to how to prove to the warrantee company that blow off valves have nothing to do with boost levels? Does anyone have any information or diagrams of what exactly blow off valves do, so I can send them something showing that my car still has stock boost levels?
Thanks

 

No, A water coolant failure has nothing to do with boost. Overboosting destroys apex seals, etc. I would call the manufacturer of the BOV and tell them what the warrantee company said, get a letter from them. Then get a reputable mazda rebuilders to explain what causes h2o seal failures (not boost) and get a couple letters that say so. (Hayes Rotary in Redmond will help you) ....