averse Posted October 13, 2014 Report Share Posted October 13, 2014 (edited) Here's a quick vid to help see the symptoms. So far I have changed spark plugs, wires, and tested with spare fuel injectors with no change in symptoms. This sucks because I am supposed to head out Friday for nats (1k miles away) and I'm working so much this week that I have no time to tear into it, hardly. http://youtu.be/hLKBTVkvs3c Edited October 13, 2014 by averse Link to comment Share on other sites More sharing options...
questtuner82 Posted October 13, 2014 Report Share Posted October 13, 2014 That sounds like a dead miss to me. U can hear the dead cylinder sound even when u rev it up. Check the valve lash and check compression. Also u can leave the motor idle and pull a plug wire off one at a time and when it makes no difference when u pull it off thats the cylinder that has an issue. Also what mods are done to it and do u have mechanical or hydraulic lifters? And do u have jet valves or a njv head Link to comment Share on other sites More sharing options...
scott87star Posted October 13, 2014 Report Share Posted October 13, 2014 What did the old plugs look like Tim? Link to comment Share on other sites More sharing options...
questtuner82 Posted October 13, 2014 Report Share Posted October 13, 2014 Hey scott his car from the video sounds like it has a dead miss even when he revs it up. Link to comment Share on other sites More sharing options...
ucw458 Posted October 13, 2014 Report Share Posted October 13, 2014 Check ignition timing ang check for leaking injector/fpr. Link to comment Share on other sites More sharing options...
averse Posted October 13, 2014 Author Report Share Posted October 13, 2014 Here's a pic of the plugs, not sure of the order. The top one in the picture here had almost no gap on it and i dont know if that would have caused other problems due to burning too hot (?), although I would suspect the first indication would be a melted plug. Yes, it is missing even on acceleration. Anyway, thanks for the feedback that confirmed I was on the right track with diagnosing the misfire and working from the distributor on down the spark line. I took it to a shop and will have to bite the bullet now since I dont have the time to tear into it and verified it wasnt plugs/wires. (I guess I could have checked the distributor cap now that I think of it.) http://i.imgur.com/Fr1W7Hil.jpg Link to comment Share on other sites More sharing options...
questtuner82 Posted October 14, 2014 Report Share Posted October 14, 2014 Those plugs look like they have a glaze on them. Looks like possibly coolant or high speed glazing. Is it an orange/red tint on the plugs? May have a bad head gasket or cracked head. Any signs of anything before this miss started? Ever run hot? Seems to me it could be coolant causing this or maybe a valve out of adjustment. And i really wouldnt take the car to a shop unless these cars are familiar to them Link to comment Share on other sites More sharing options...
averse Posted October 14, 2014 Author Report Share Posted October 14, 2014 No compression on cyls 2 and 3... Looks like this car aint making it to Texas now. Link to comment Share on other sites More sharing options...
scott87star Posted October 14, 2014 Report Share Posted October 14, 2014 Gah! You're going to make me come to Tucson aren't you? Link to comment Share on other sites More sharing options...
ucw458 Posted October 14, 2014 Report Share Posted October 14, 2014 Sounds like a HG. You can change a HG in about an hour. Still time to make it to Texas. Link to comment Share on other sites More sharing options...
averse Posted October 15, 2014 Author Report Share Posted October 15, 2014 Hoping that is all that is wrong with it. My challenge is that I dont have an hour to spare before I head out, so I am at the mercy of a shop if I want it done in time, which means paying $$$. Heh, I could probably buy some SQer an air ticket to Tucson to do it and then they could ride with me to Texas cheaper than what the shop is going to charge, lol. Link to comment Share on other sites More sharing options...
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