Zemerz Posted October 9, 2013 Share Posted October 9, 2013 Got SR dials in so I can see where abouts my NA idles, currently just over 1k rpm. Is that good for these? My Polo's used to idle around 1.5k? Quote Link to post Share on other sites
morgey Posted October 9, 2013 Share Posted October 9, 2013 (edited) almost every car should be around 750-1000rpm really, just over isnt too bad, your polo sounds like it had a vac leak or something to be that high. when cold they will idle a little bit higher and settle down to under 1k usually Edited October 9, 2013 by morgey Quote Link to post Share on other sites
Flynn Posted October 10, 2013 Share Posted October 10, 2013 Mine used to idle the same on those very dials mate, then settle down a little when warm Quote Link to post Share on other sites
morgey Posted October 10, 2013 Share Posted October 10, 2013 Dials could be out then, my Sr dials were 200rpm out Quote Link to post Share on other sites
Flynn Posted October 10, 2013 Share Posted October 10, 2013 ^^They are my old dials Morgey^^ Quote Link to post Share on other sites
mikey4410 Posted October 10, 2013 Share Posted October 10, 2013 Idle shouldnt be higher than 750rpmAnybody with half an ear for an engine can tell if its idling to high anyway without the use of a rev counter. Imo 1000 is way to high warm idle and needless Quote Link to post Share on other sites
Zemerz Posted October 10, 2013 Author Share Posted October 10, 2013 @Mikey when it's cold it's high and loud, once warm it's just over 1k on dials but it's very quiet, so probs the dials are out? Just wanted to know what people usually average at, always handy to know Also, might be a bit off this topic, I always seem to get a strong smell of petrol from the car. Can't find any leaks or holes, although the exhaust sounds like it's blowing, as if there's a hole in it (new backbox fitted after original one fell off). Any ideas? Quote Link to post Share on other sites
Flynn Posted October 10, 2013 Share Posted October 10, 2013 Doubt if its the dials mate they were pretty much spot on when they were on my SR the idle did get a bit funky when I fitted a corolla manifold but that was to do with throttle tension I think? Quote Link to post Share on other sites
Zemerz Posted October 10, 2013 Author Share Posted October 10, 2013 Can you adjust the throttle tension? From the little bit on the throttle cable by the body? Quote Link to post Share on other sites
Flynn Posted October 10, 2013 Share Posted October 10, 2013 I didn't have the bit on the rolla mani that holds the throttle cable properly so I used a bit of rubber to set the tension. Got a bit sticky after a while but I'm sure there was a better way of doing it Quote Link to post Share on other sites
morgey Posted October 10, 2013 Share Posted October 10, 2013 Can check the accuracy of the dials by popping to a garage with a fairly decent timing light, they tell you what your rpm is, then compare that to what yours read. Mickey I've not seen any car idle lower than 750rpm I don't think, when they idle that low they sound rough like theyre about to stall Quote Link to post Share on other sites
mikey4410 Posted October 10, 2013 Share Posted October 10, 2013 mine idles around 500 rpm no probs ,so thats not true. i have it set this low as i like me engine braking alot 800 or higher is pointless. Quote Link to post Share on other sites
rmsnoel Posted October 10, 2013 Share Posted October 10, 2013 It should be 750. Quote Link to post Share on other sites
Zemerz Posted October 12, 2013 Author Share Posted October 12, 2013 See when it settles, it goes to around 1k and gets rough likes it's gonna idle, so i'm guessing the dials are out? Probs my fault cause I put Paseo needles on But I made sure the counter was down and all that? Quote Link to post Share on other sites
rmsnoel Posted October 12, 2013 Share Posted October 12, 2013 You could always check does it hit the rev limit at 6500rpm . If the throttlebody isnt dirty and you havnt messed with anything else it should idle at 750_800. If you bridge te1 & e1 in the diagnostics plug the car will hold idle at 750_800 Quote Link to post Share on other sites
Zemerz Posted October 12, 2013 Author Share Posted October 12, 2013 Cheers Noel i'll have a look on Monday How do you bridge te1 and e1? Theres a diagnostics guide on here ya? Quote Link to post Share on other sites
rmsnoel Posted October 13, 2013 Share Posted October 13, 2013 Use a paperclip or any stiff wire. Youll here your idle valve open up making a swooosh noise then close fully. Your timing is now locked at 10° btdc and your idle should be at the correct. If not adjust your throttle stop. The most common problem is your throttle is dirty. Clean it with a cloth and your finger while holding open the throttle with your other hand. It shouldnt matter if your throttlecable is loose because the idle should be set spot on from the factory and its usually oily buildup or human error that messes it up. Have u done anything to your car?? Quote Link to post Share on other sites
rmsnoel Posted October 13, 2013 Share Posted October 13, 2013 Theres also a rev feed in the diagnostics port so u can connect any rev counter and check your revs. Quote Link to post Share on other sites
Zemerz Posted December 4, 2013 Author Share Posted December 4, 2013 For anyone interested, i bridged te1 and e1 and found out its the dials that are off.If you decide to change your needles on dials make sure you fiddle with them so theyre set properly! Quote Link to post Share on other sites
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