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timing and oil burning are unrelated. the additional pressure might
make an additional 3 or 4 foot pounds of torque... which is, what,
maybe a 4% increase? That's not enough to change oil burning or ring
sealing. How much oil are you consuming? Do you have a grey/blue cloud following your car? Is it worse when you let off the gas at high rpm? -Chuck ---------------------- Michael Knudson wrote: />The ECU has no way of knowing where you have physically set the timing. It assumes you are physically setting it to 10* and will report that even if you physically set it to 20*. If you set it to 14*, it's like adding an additional 4* over the entire timing map. The ECU doesn't know this, though. > >As far as ignition timing having any effect on oil consumption.... it doesn't. It's either coincidence or imagination. >I'd say stick it back at 14* and run it that way. > >Have you done a leakdown and compression check to know that the rings are bad? > -Chuck /@ Chuck, no leak down yet, compression comes to 160, 155, 162 , 160 (at 4100 feet). need to check them again now there there is a more mileage on the head. as for burning oil, I know timing its self would have nothing to do with it. but the increased pressure from the fuel igniting sooner would right? the engine has just about 154k miles on it. @ Larry, come to think of it, no I did not. guess thats what I get for being in a hurry that night... Larry Alster wrote:Did you put the jumper in the diag block to adjust the timing? Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata http://www.lowcountrymiataclub.net Masters Miata RAGS 074 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Michael Knudson Sent: Tuesday, June 24, 2008 4:37 PM To: [email protected] Subject: Adjusted timing to 14 on a 97 Hello, Just have a quick question for you. I adjusted the timing on my 97 NA to 14 degrees. We set it using a timing light and while keeping an eye on a scangauge in side the car to see what the ecu was saying it is. timing light says we are at ~14 but the ecu is still reporting 10 at idle. does it always report it as 10 or is there some other issue that I should be worried about. I will say this though, since I bumped the timing it runs much smoother and feels much quicker while accelerating. no more hesitation from 1k-4k rpm. I am going to drop it back off to 12 degrees on thursday. My rings seems to be letting more oil past now... just can't keep up with the extra pressure I guess. Hoping to have money for rebuild over the winter/spring. on that note, any tips on where I should look for parts and pricing on all that? head was recently replaced with a rebuilt unit. so I think just a head gasket and a lower end rebuild should be enough. Thank! _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower_______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower |
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