Guest spunkysandoval Posted February 10, 2003 Share Posted February 10, 2003 Hi there! I have an abnormaly high idle on my z. I put a zx hall effect distributor in it with a accell super coil. The plugs are indexed, and that's the extent of which I have modified this Z (I just got it). When I start the car up from being cold, it idles at 1k. After i get in to the throttle it stays up around 13-14 hundred. Any one got any ideas? BTW it's a 71 240z with the stock L24(150,000+miles). Oh, I almost forgot, I didn't set the timing yet. When I installed the zx dist, I didn't have the timing specifications. I'm still waiting for my haynes manual to come in the mail. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 3, 2003 Share Posted April 3, 2003 Check for looseness at the throttle plates. It they are a little loose they may be taking a "set" (slightly more open) and hanging there. And, check for any miniscule catching/binding of the linkage as a whole and lube the entire throttle linkage system well. Also, since you have installed a better performing ign. part is it quite likely the engine will respond with more power which will raise the idle speed with the same throttle setting, so do that timing as your baseline and then get to the idle speed last I think. (Why can't you get the timing from online)? Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 3, 2003 Share Posted April 3, 2003 Playing with diz will change idle speed somewhat, I hardly ever use a light just adjust till you ping and back off, after awhile you know about where the diz is in relation to timing. You can also check carb linkage adjustment/idle screws. Next option although not likely is a vacuum leak. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 3, 2003 Share Posted April 3, 2003 Mudge, You cracking me up with the timing light deal. You must be one hell of a shadetree mechanic to make that statement!.....LOL Quote Link to comment Share on other sites More sharing options...
Guest Want aZ Posted April 3, 2003 Share Posted April 3, 2003 Hey I must admit that I do the same thing, Had on old 81 Chevy PU with a straight 6, adjusted it that way then out of curiosity, threw the light on it, was within 2 degrees, then got to know the relative position of the dizzy to the engine, and could put it back in place w/o timing again...I sure miss that truck... Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 3, 2003 Share Posted April 3, 2003 Spunky; Run a wrench around the intake manifold bolts and the pots just for the heck of it. Vacuum leaks you know. And, I had one old car whose throttle plate shaft was so worn you could cause the idle to change by wobbling it. And, what's happening? Don't be a stranger! And, as to timing an engine by ear.....I was within one degree when I checked, but two deg.? That much will not only damage your flamastrat but also eventually cause gizzard cancer! Get wise, use the light.....LOL Quote Link to comment Share on other sites More sharing options...
Guest spunkysandoval Posted April 4, 2003 Share Posted April 4, 2003 Hey guys! What's up? Well my timing problem is no longer a problem. As a matter of fact, neither is my motor. You see, I spun a bearing in my motor a while back. My Z has been sitting in the garage for about a month. I am working on the replacement motor everyday. Suckie thing is that i only have an hour a day to work on it. It's in my highschool shop class. I don't have all the tools at home to do what needs to be done. I'm glad to report that the motor is in the reassyembly stage. But sadly, It will be in it's current conditino for 2 weeks because of spring break. I want to finish it so i can drive The Z again. I miss my Z, Isaac Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted April 5, 2003 Share Posted April 5, 2003 Heh! Go ahead son, tell us all about how you let it run out of oil! Quote Link to comment Share on other sites More sharing options...
Guest 1320the260 Posted April 30, 2003 Share Posted April 30, 2003 haha i ran my old supra low on oil once.... rod knock soon followed. Quote Link to comment Share on other sites More sharing options...
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