is this spark blowout?
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single digit dreamer
iTrader: (6)
Joined: Mar 2002
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From: omaha ne
is this spark blowout? truck ran fine about a month ago, shifting at 6500. then it seemed to be floating the valves right before the shift so i turned down the shift points to 6300. the float just kept coming down and down and i kept adjusting my shift points down.
i am all the way down to 5500rpm for my shifts and it is floating at 5200, wont even get to 5500 in 2nd anymore. it pulls like mad up to 4500 or so.
i broke a valve spring awhile back and only swaped the one, i figured the entire bunch was going bad and just now finialy got a good set in there(patriot golds). i still have the same problem.
is this what spark blow out would feel like? the plugs only have 1000miles or so on them and were gaped at .034 or so(whatever they come out of the box) tr6's. i am pushing it prety hard sometimes, as much as 14psi and a 100shot.
i am puting in a new set of tr6's tomorrow and hope it fixes the problem, what should they be gaped at?
i am all the way down to 5500rpm for my shifts and it is floating at 5200, wont even get to 5500 in 2nd anymore. it pulls like mad up to 4500 or so.
i broke a valve spring awhile back and only swaped the one, i figured the entire bunch was going bad and just now finialy got a good set in there(patriot golds). i still have the same problem.
is this what spark blow out would feel like? the plugs only have 1000miles or so on them and were gaped at .034 or so(whatever they come out of the box) tr6's. i am pushing it prety hard sometimes, as much as 14psi and a 100shot.
i am puting in a new set of tr6's tomorrow and hope it fixes the problem, what should they be gaped at?
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
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From: omaha ne
i have all of my 02's pulled including the wideband. i am running some leaded fuel in there.
puting the wideband back in there to make sure my fueling is still on will be my next step after i try plugs. i drove around for a week though with it hooked up and it always looked good.
puting the wideband back in there to make sure my fueling is still on will be my next step after i try plugs. i drove around for a week though with it hooked up and it always looked good.
If its getting warmer its most likely getting way richer. If your a/f is OK the quickest way to check for blowout is to tighten the gaps to about .020 or so just to see if see if it gets better.
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
Likes: 4
From: omaha ne
i changed the plugs and it is fixed, woohoo.
the gap had opened up to about .037, i gaped the new ones to .030, lets see how long this lasts.
the plugs look real funny, red, kinda baked looking. i will post up some pic's tomorrow but right now i got to go check out the power tour
my fuel is red too so maybe the red is nothing but the baked look seems wrong. pic's later then you guys can tell me
the gap had opened up to about .037, i gaped the new ones to .030, lets see how long this lasts.
the plugs look real funny, red, kinda baked looking. i will post up some pic's tomorrow but right now i got to go check out the power tour
my fuel is red too so maybe the red is nothing but the baked look seems wrong. pic's later then you guys can tell me
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
Likes: 4
From: omaha ne
and on the fueling, i am still using the maf sensor, i wouldnt think it is rich but i will check it out. my maf maxes out at 5200 or soo when cool out so i know when it is warm and i get above 5200 it will start to go rich since i am adding fuel based on rpm after that but not much and not enuff to keep it from reving above 5200. i could see it being a problem up higher when i am really adding alot of fuel if the air flow isn't there for it.
I still use my MAF and when it gets hot it gets richer, on a 50 degree day I was at 12.0:1 a/f going through the lights one click lean on the MAFT. Last weekend it was in the 70's (changed nothing on the car) and I was at 11:1 a/f and had to go 3 clicks just to get to 11.8.
Not exact science but even on the street its richer when its hot, could be because my MAF is blow through and its getting a big change because of the much hotter IAT. Seems it should be the opposite but who knows I have the MAF tweaked so it works the whole range, I dont think it was rich enough to hurt you but a combination of that and wide plug gaps could hurt.
Not exact science but even on the street its richer when its hot, could be because my MAF is blow through and its getting a big change because of the much hotter IAT. Seems it should be the opposite but who knows
I have the MAF tweaked so it works the whole range, I dont think it was rich enough to hurt you but a combination of that and wide plug gaps could hurt. Trending Topics
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