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I have a 1985 RX-7 GSL-SE that started leaking gas out of the fuel rail. The end of the rail that is closest to the front of the car is capped with a bolt that has a plastic cap over the end (pictured). I took the cap off, and found a screw with an o-ring/grommet that was leaking. I went to Lowes and found the best fitting o-ring I could find, however it didn't work. Any suggestions?
Fuel damper,some replace with a bolt. I don't recommend this route,Mazda engineers thought enough to put two on fuel system. Failure more common on 2nd gen cars,not certain can be had new. I'd start a WTB thread in 1st gen classifieds.GL
You can just thread the screw back in, unless you've damaged the 0-ring. These can commonly leak and it will be crucial to repair or replace as you do not want your 7 going up in flames. I may even have a spare if you are unable to repair yours.
Does anyone know if the 2nd Gen Pulsation Dampener threads are the same as -SE? These aren't a common failure point, but with 33 years on some of them, it's bound to eventually need to be replaced.
Like the other guys, I don't recommend removing it entirely, unless you can't find a replacement. The pairing of the pulsation dampeners; one on the Fuel Pump and the other there on the Rail - is to ensure that your injectors don't take a beating from hydraulic 'hammer' due to the pump pulses. Injectors aren't easy to find these days either, and out of the 5 I sent to RC Engineering about 10 yrs ago, they sent 2 back which could be rebuild and were flow-balanced. Still running on those 2 and now at 224k miles total.
I'll look through me EGI parts and shoot you a message after work!
I ended up getting a new one off eBay. Thanks though. I tried welding a cap onto the old one, just temporarily until I could find one used, but it leaked. Probably for the best
01-28-17, 02:58 PM
