I recently had to remove the fuel injectors and fuel rail to clean out the EGR ports on my Honda Accord. The EGR port was all clogged up with carbon build up. I replaced all the old o-rings, cushion rings and injector seals with new ones. One of the injector seals isn't sealing properly.
I tried just using clean oil to get them to seal, that didn't work.
Then I tried silicone gasket maker around the injector seals and that worked less than the oil.
I saw a youtube video where someone used silicone spray. It looks part of the metal on the engine where this injector goes in isn't quite even at one part. What's the best way to get this thing to seal up? The vacuum leak from this is causing my idle to go way up (1.5 - 2k rpms) it gets worse after using the brakes.
Is there something out there that would work better?
I've thought of using heavier weight engine oil or putting a washer in front of the cushion so that there will be more pressure on the injector seal.
Here's a picture of a similar fuel injector. My model doesn't have insulators though.