HOrnbrod Posted December 7, 2013 Share Posted December 7, 2013 I'm going to try all of this. Then if that doesn't work I'm going to pick up a set of O-rings and slap my old injectors back in. See if thatbwill make it run right. ^^ This Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 7, 2013 Author Share Posted December 7, 2013 I actually had my brother move the throttle arm some to increase RPMs while I sat in the cab to shut the engine off if anything happened. When he did that I got backfires consistantly. Which really just adds to the idea its getting to much gas. It smells even stronger of unburnt gas than it did before I changed the O2 sensor. Ill be getting the Orings tomorrow after my interview, and changing the injectors if I have time afterwards Link to comment Share on other sites More sharing options...
ComancheKid45 Posted December 7, 2013 Share Posted December 7, 2013 The smell of 2 much fuel means its not burning it all. That tends to lean towards a spark issue......the plugs are cake to pull and check, I would start there bud ;) Link to comment Share on other sites More sharing options...
ComancheKid45 Posted December 7, 2013 Share Posted December 7, 2013 The smell of 2 much fuel means its not burning it all. That tends to lean towards a spark issue......the plugs are cake to pull and check, I would start there bud ;) Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 7, 2013 Author Share Posted December 7, 2013 I pulled all the plugs and cleaned them. They looked really burnt, like black. Which of coursebthey are making the engine turn by creating a small explosion,. But they were more burnt than my old plugs, and these are only 2 months old. Link to comment Share on other sites More sharing options...
Oyaji Posted December 8, 2013 Share Posted December 8, 2013 Sounds like you don't have a spark issue, but maybe an issue with injectors with too high of a flow rate. Clean the plugs with a bead blaster, put them back in with the old injectors, and try it again (if you can't get the plugs clean, put in a new set instead). If the clean plugs come out black and sooty with the old injectors, you have a sensor issue or fuel pressure regulator issue. If they show a decent mixture, the new injectors are flowing too much... too much even for the control unit's ability to lean them out by shortening the injector pulse. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 9, 2013 Author Share Posted December 9, 2013 Bead blaster? Whats that? I got the fuel injector oring kits. They came with 2 brown orings, a weird blue cap looking thing with a hole in it (I'm guessing it goes on the tip of the injector) and a weird hard plastic white ring. I'm guessing I should just use the 2 o rings considering nothing on the injectors looks like the other 2 pieces. Just waiting on a non rainy day now. Link to comment Share on other sites More sharing options...
Oyaji Posted December 9, 2013 Share Posted December 9, 2013 $13 as advertised at Sears: You'll need a decent air compressor to provide sufficient air flow to use it. Or just put in a new set of plugs for the running test of your old injectors. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 9, 2013 Author Share Posted December 9, 2013 4 of the 6 injectors are leaking cause of the orings I put on. So theres a wasted 30 dollars on top of the 65 I can't get back for the injectors. Link to comment Share on other sites More sharing options...
ComancheKid45 Posted December 9, 2013 Share Posted December 9, 2013 So the injectors themselves are faulty and leaking, or are the o rings leaking? Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 9, 2013 Author Share Posted December 9, 2013 The o rings. They didnt seem right when i was putting them on the injectors, but I figured they would work. I'm going to mess with them tomorrow and see what I can do. They're all oreillys had though. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 10, 2013 Author Share Posted December 10, 2013 I just checked rockauto and they have the same things oreilly had. I guess I just need to try to get them fitted right. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 19, 2013 Author Share Posted December 19, 2013 I smushed and twisted the injectors a good bit. And they sealed :D but for a couple seconds after turning on the fuel pump to check if they sealed, i cpuld hear a slight hissing noise and a scent of gas. But I couldn't find from where! And it's still running rough, and after about 10 seconds it just goes crazy still. I noticed my IAC plug is kinda... shattered. But its still pluged in fine it seems. (Note I didnt change spark plugs, yet. Thats next if I have the money) Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 19, 2013 Author Share Posted December 19, 2013 I went out there and pressed a couple vac lines, blew into some plugs, and tapped some sensors. Cranked it up and hey! It sounds fine! i also found the hissing sound, it was the fuel line oring where it goes into the regulator. But I'm just so happy it sounds fine. Sounds good when I increase RPMs too Link to comment Share on other sites More sharing options...
cruiser54 Posted December 19, 2013 Share Posted December 19, 2013 Are these the original Renix injectors? Link to comment Share on other sites More sharing options...
Bornindesert Posted December 19, 2013 Share Posted December 19, 2013 A learning experience for sure! Glad you got it running smooth, and with all new orings installed. I remember the orings being fairly tight going in, and they definitely need to seat properly, Hopefully no more gas leaks until the next cold snap ! Link to comment Share on other sites More sharing options...
cruiser54 Posted December 19, 2013 Share Posted December 19, 2013 I went out there and pressed a couple vac lines, blew into some plugs, and tapped some sensors. Cranked it up and hey! It sounds fine! i also found the hissing sound, it was the fuel line oring where it goes into the regulator. But I'm just so happy it sounds fine. Sounds good when I increase RPMs too Sounds like a "Fonzie fix" to me. LOL. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 20, 2013 Author Share Posted December 20, 2013 At least it runs, for now! And yes these are the original injectors. Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 21, 2013 Author Share Posted December 21, 2013 So advance auto, and oreillys both didnt even have a fuel pressure regulator oring listed in their stock... help? Link to comment Share on other sites More sharing options...
cruiser54 Posted December 21, 2013 Share Posted December 21, 2013 Quick disconnect part numbers So far the Napa part numbers for just orings is: Napa 730-5018 3/8 Viton individual orings $1.56 each Napa 730-5017 5/16 Viton individual orings $1.35 each Napa CRB 212305 fuel line repair kit 5/16? $15.93 each Mopar repair kits: 83502745 fuel line repair kit 5/16 $6.99 Morris 83504447 fuel line/Trans line repair kit 3/8 $8.99 Morris Link to comment Share on other sites More sharing options...
yxmj Posted December 21, 2013 Share Posted December 21, 2013 I do not know if this would be helpful to you but i see no mention of it here so i will bring it up. I have changed many injectors both individually (in XJ's the #3 is known for cooking because of the heat shield) and as an upgrade (4 holes in mine for throttle response and a little more pep) When I put them in I carefully coat the o-ring with a slight film of petroleum jelly.....never had a problem with a single or a full rail....they always just popped in and fired up first try...for what it is worth :dunno: Link to comment Share on other sites More sharing options...
Knucklehead97 Posted December 22, 2013 Author Share Posted December 22, 2013 Quick disconnect part numbers So far the Napa part numbers for just orings is: Napa 730-5018 3/8 Viton individual orings $1.56 eachNapa 730-5017 5/16 Viton individual orings $1.35 eachNapa CRB 212305 fuel line repair kit 5/16? $15.93 each Mopar repair kits: 83502745 fuel line repair kit 5/16 $6.99 Morris83504447 fuel line/Trans line repair kit 3/8 $8.99 Morris of course the napa store here closed a couple months ago. So I guess I have to go to a dealer and get a repair kit? Should I get the 3/8 or 5/16? Oreillys was trying to charge me 10$ for the orings alone and they didnt look the same. AND YXMJ, I'm figuring I just didnt push the injectors in and seat them properly. And the ohms resistance was so differemt I'm figuring the newer injectors just were dumping to much fuel. They're Ford injectors. Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 22, 2013 Share Posted December 22, 2013 You need 5/16" quick connectors for the fuel line. O'Reilly's has them here: http://www.oreillyauto.com/site/c/detail/BWD0/27481.oap?ck=Search_83502745_-1_-1&keyword=83502745+ The dealer will charge you over $20/ea, but they are better quality. Rock Auto also has them, p/n HK7 Link to comment Share on other sites More sharing options...
cruiser54 Posted December 22, 2013 Share Posted December 22, 2013 You need 5/16" quick connectors for the fuel line. O'Reilly's has them here: http://www.oreillyauto.com/site/c/detail/BWD0/27481.oap?ck=Search_83502745_-1_-1&keyword=83502745+ The dealer will charge you over $20/ea, but they are better quality. Rock Auto also has them, p/n HK7 Thank you for the clarification on size. I ASSume that 5/16 are for fuel and 3/8 are for trans? Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 22, 2013 Share Posted December 22, 2013 Fuel line supply is 5/16". On HOs fuel return is 3/8", not sure on the Renix. Tranny cooling lines are both 3/8". Link to comment Share on other sites More sharing options...
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