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RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections. |
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#1 |
Rotary Fanatic
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so i had/have some leaks causing my idle to not go below 1300rpms. first i tried spraying carb cleaner around and i could tell there was leaks but i couldnt see where they came from.
so then i made a simple plug to fit on the end of my throttle body elbow or turbo inlet with a tire valve on the end of it, this enabled me to pressurize the whole intake, this worked better and i found 2 leaks in the upper manifold this way, but i couldnt see where the leak below the manifold was. so i made a 10" aluminum plate that can be bolted to either the UIM or the lower intake manifold. I put 4 tire valves in for each runner so i can test each section seperately. it works so much better, now i can actually look and feel around as i pressurize the manifold. Plus i can plug both ends of the UIM so i can test the unit outside of the car on a bench. heres some pics. ![]() ![]() ![]() ![]()
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500+ HP thanks to: ![]() Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap! |
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#2 |
Rotary Fanatic
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oh on a side note it seems like the air is coming from my primary injector area, what would be leaking there? When the engine was running it didnt seem like it was leaking any fuel... hmm?
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500+ HP thanks to: ![]() Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap! |
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#3 |
RCC Contributor
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It is common for the fuel insulators to leak, extremely common actually. They look similar to an o-ring and go between the fuel rail and block(around the fuel rail) If the leak is bad there it will usually cause the car to run a little rich or smoke a little at idle. Simple fix if you are non-seq, a major pain in the ass if you are still seq.
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David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) ![]() PM me about low priced, high quality port work ![]() |
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#4 |
Rotary Fanatic
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yeah im single turbo, lastnight i pulled the primary injector rail and there arent any seals or diffusers in there at all. i called ray and ordered them, expensive lil shits those diffusers are..
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500+ HP thanks to: ![]() Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap! Last edited by dudemaaan; 04-30-2008 at 04:06 PM.. |
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