jxavierf Posted June 26, 2005 Share Posted June 26, 2005 What's the difference?? Link to comment Share on other sites More sharing options...
oddcomp Posted June 26, 2005 Share Posted June 26, 2005 base timing is the initial setting that car uses before the edu electronically advances or retards the timing whiel the engine is runing if you go try and set the base timing with out connecting the wires that tell the ecu to not adjust the timing then you will end up chasing the timing marks all around as the ecu tried to "re-correct" the timing also the ecu is programmed to start its timing advance from what it thinks is teh "base timing" so if your base is supposed to be say 15 deg btdc but it really is 18 deg btdc and the ecu assumes it starts out at 15 and tehn advances another 5 degree then the ecu incorrectly makes the timing advance to 23 degrees btdc ... depending ont he motor aand other things like turbo's and such it can eitehr be a good thing or it can preignite the fuel in the cyliders so far in advance that it tears the motor up that is my version of it .. i will let someone else with better typing skills explain how advance and retard work in relation to power and fuel economy Link to comment Share on other sites More sharing options...
thesubeguy Posted June 26, 2005 Share Posted June 26, 2005 which connectors are you speaking of since i think thats part of a problem on mine as well. are they the ones that pull the codes from the ecu? Link to comment Share on other sites More sharing options...
Myxalplyx Posted June 26, 2005 Share Posted June 26, 2005 which connectors are you speaking of since i think thats part of a problem on mine as well. are they the ones that pull the codes from the ecu? The green connectors in the trunk (of an XT6 anyways). Link to comment Share on other sites More sharing options...
MilesFox Posted June 27, 2005 Share Posted June 27, 2005 green connectors, 87 and up spfi they are under the hood. 85 and up turbos as well as 86 spfi they are under the dash near the ecu. xt's in the trunk. the black or white connectors are for the codes withthe green connectors plugged in the fuel pump willcycle on and off, and this also holds the timing static in the same manner as plugging the vac line on a mechanical distributor Link to comment Share on other sites More sharing options...
jxavierf Posted June 27, 2005 Author Share Posted June 27, 2005 Would the timing be any different for an 84 gl wagon? Link to comment Share on other sites More sharing options...
MilesFox Posted June 27, 2005 Share Posted June 27, 2005 timing for fuel injected would be 20 deg btdc. the 84 would be 8 deg +/- 2 deg Link to comment Share on other sites More sharing options...
jxavierf Posted June 27, 2005 Author Share Posted June 27, 2005 It's an 84 carb wagon and is timed to 12 deg.........runs fine, great power, and use 93 octane. Is there anything I should worry about or be aware of being that its timed to 12 deg??? Thanks Link to comment Share on other sites More sharing options...
MorganM Posted June 27, 2005 Share Posted June 27, 2005 It's an 84 carb wagon and is timed to 12 deg.........runs fine, great power, and use 93 octane. Is there anything I should worry about or be aware of being that its timed to 12 deg??? Thanks As long as it's not pre-detinating (pinging) then you should be fine. Link to comment Share on other sites More sharing options...
oddcomp Posted June 27, 2005 Share Posted June 27, 2005 12 deg??? wow you should have a pretty large amount of power loss being that retarded in the timing setting Link to comment Share on other sites More sharing options...
singletrack Posted June 27, 2005 Share Posted June 27, 2005 wow you should have a pretty large amount of power loss being that retarded OK guys, let's keep it friendly. The correct term is combustionally challenged. Link to comment Share on other sites More sharing options...
jxavierf Posted June 27, 2005 Author Share Posted June 27, 2005 12 deg??? wow you should have a pretty large amount of power loss being that retarded in the timing setting Blunt, but to the point (note: this a Carburated Engine, not fuel injected) Though there has been significant power gain, it looks as if it would be wise to reconsider the thirst for power and settle for engine longevity..... cheers.............. Link to comment Share on other sites More sharing options...
MorganM Posted June 27, 2005 Share Posted June 27, 2005 12 deg??? wow you should have a pretty large amount of power loss being that retarded in the timing setting 12 deg BTDC would be 4 degrees advanced for his EA82 carb engine. Link to comment Share on other sites More sharing options...
jxavierf Posted June 27, 2005 Author Share Posted June 27, 2005 12 deg BTDC would be 4 degrees advanced for his EA82 carb engine. That is correct...........except its an EA81. Is 4 degrees too greedy????? Link to comment Share on other sites More sharing options...
MorganM Posted June 27, 2005 Share Posted June 27, 2005 That is correct...........except its an EA81. Is 4 degrees too greedy????? Ah I just assumed 84 GL was a wagon or sedan; is it a hatchback? When it starts ping'n you are getting too greedy Link to comment Share on other sites More sharing options...
jxavierf Posted June 27, 2005 Author Share Posted June 27, 2005 Ah I just assumed 84 GL was a wagon or sedan; is it a hatchback? When it starts ping'n you are getting too greedy It's an 84 wagon gl 4wd auto with 36k. (EA81) hey, maybe I'd feel more comfortable at 10 degrees??? Link to comment Share on other sites More sharing options...
MorganM Posted June 27, 2005 Share Posted June 27, 2005 It's an 84 wagon gl 4wd auto with 36k. (EA81) hey, maybe I'd feel more comfortable at 10 degrees??? Guess I'm not up on what all the EA81 came in and what years. Only worked on a few friends; never owned one myself yet. I dunno why you are even worrying about it honestly You've already done the right thing and put in higher octane fuel. If it's running great on 93 I say drive on. Link to comment Share on other sites More sharing options...
Myxalplyx Posted June 27, 2005 Share Posted June 27, 2005 It's an 84 carb wagon and is timed to 12 deg.........runs fine, great power, and use 93 octane. Is there anything I should worry about or be aware of being that its timed to 12 deg??? Thanks No! It's running fine so you have nothing to worry about. That simple! Link to comment Share on other sites More sharing options...
oddcomp Posted June 27, 2005 Share Posted June 27, 2005 the retarded was meant in reference to engine timing only as in advanced/retarded timing sorry for any confusion maybe we should petition for a more p/c term to describe the ignition system firing later in the combustion cycle? Link to comment Share on other sites More sharing options...
singletrack Posted June 28, 2005 Share Posted June 28, 2005 the retarded was meant in reference to engine timing only as in advanced/retarded timing sorry for any confusion maybe we should petition for a more p/c term to describe the ignition system firing later in the combustion cycle? I was just kidding. It's one of my responsibilities as resident wise-rump roast. Link to comment Share on other sites More sharing options...
jxavierf Posted June 28, 2005 Author Share Posted June 28, 2005 Ok.....I'm strying to get this straight in my head: If the rotor on the disty moves counterclockwise, and I'm 12 deg advanced, then I twist the disty clockwise to a slower idle, could I actually acheived 10 deg advanced???? Thanks............ Link to comment Share on other sites More sharing options...
ballitch Posted June 28, 2005 Share Posted June 28, 2005 rule is, with carb motors running and timing light in hand, twist one way, if it speeds the idle up, that way is advance, no need to get too technical, after all, it IS outdated technology..............uh oh.......HERE THEY COME!!!!! j/k ~Josh~ Link to comment Share on other sites More sharing options...
Cougar Posted June 29, 2005 Share Posted June 29, 2005 Ok.....I'm strying to get this straight in my head: If the rotor on the disty moves counterclockwise, and I'm 12 deg advanced, then I twist the disty clockwise to a slower idle, could I actually acheived 10 deg advanced???? Thanks............ When I first read your post I thought you were correct but after thinking about it more I think the firing will be more advanced since the firing will be even sooner by moving the disty clockwise and the rotor turning CCW. Link to comment Share on other sites More sharing options...
jxavierf Posted June 29, 2005 Author Share Posted June 29, 2005 When I first read your post I thought you were correct but after thinking about it more I think the firing will be more advanced since the firing will be even sooner by moving the disty clockwise and the rotor turning CCW. You are correct, the more I thought about it, I realized I had it backwards. Now another Q, I need to adjust the Float, theres too little gas in there.....how do I go about adjusting the float.... Thanks always.......... Link to comment Share on other sites More sharing options...
oddcomp Posted June 29, 2005 Share Posted June 29, 2005 "coff coff".. Link to comment Share on other sites More sharing options...
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