TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 little piece of old gasket i missed(hard as a rock) like a knife cut the brand new gasket Link to comment
Mattndew76 Posted October 18, 2015 Report Share Posted October 18, 2015 think i found why i have been running pig rich since day one....... holy hell did it dent the head too? Link to comment
Draker Posted October 18, 2015 Report Share Posted October 18, 2015 that would cause you to run lean. 2 Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 that would cause you to run lean. Lean. May cause you to be using too much gas. Rich/lean is measured after MAF before B1S1 O2 sensor. You're measuring at the pump or exhaust. But what is causing your oil loss? 1 Link to comment
KoHeartsGPA Posted October 18, 2015 Report Share Posted October 18, 2015 That motor keeps on giving....mystery that is... Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 well yes it would run lean , but try to be corrected after passing o2 right? in turn rich in every other cyl?? Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 No. It won't turn rich. It just gives more gas to correct the lean. It will always give more gas, because it is running lean. If too much gas is given, gas is backed off to create stoic. Always stoic. The MAF measures air intake. The ECM feeds fuel given the amount of metered air taken in. When that mixture reaches the S1/upstream 02 sensor, the ECM calculates that there is more air then fuel. Lean code is then set in ECM. ECM corrects air/fuel mixture to keep engine safe. 2 cylinders fire at the same time. Through the combustion cycle, the ECM can tell which 2 cylinders are misfiring. Thus, correcting the AF ratio to those 2 cylinders. In short-term, you may be able to see a rich condition, long-term you won't. It has been corrected. Still a lean condition. P0171. The diagnostic technician's best friend. Gravy. 1 Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 just pulled it today will tear down in the am.. i'm banking on the lower rings of sorts, possibly all the rings? my new theory is cyls. got washed from running way to rich all the time. rings never set fully but when doing a compression test, cyls. were filled with oil that had passed rings but because it wasn't being burnt kept 180-190 across? Link to comment
Draker Posted October 18, 2015 Report Share Posted October 18, 2015 I'm very interested in what you find.. motor of mystery. Sounds like my L20. :confused: Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 just pulled it today will tear down in the am.. i'm banking on the lower rings of sorts, possibly all the rings? my new theory is cyls. got washed from running way to rich all the time. rings never set fully but when doing a compression test, cyls. were filled with oil that had passed rings but because it wasn't being burnt kept 180-190 across? That's an expensive lesson to learn. Shitty. Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 Have you had fuel in the oil? Any gassy smelling smoke from exhaust? Oil on top of the cylinders? If fuel did make it to the oil pan I'd look into replacing bearings. 1 Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 Ray...if it makes you feel any better-I drove my 521 to and from work(50 miles) with a spirited run around the freeway loop(15 miles) on my lunch break; all without a hitch. :console: 2 Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 Have you had fuel in the oil? Any gassy smelling smoke from exhaust? Oil on top of the cylinders? If fuel did make it to the oil pan I'd look into replacing bearings. can i pick all 3 doors, bob? Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 shit i didnt order bearings, mains and rods? i was kinda hoping they would still be fine.. :poop: :poop: :poop: Link to comment
flatcat19 Posted October 18, 2015 Author Report Share Posted October 18, 2015 Do you have a way to check the codes on that thing? Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 I'm very interested in what you find.. motor of mystery. Sounds like my L20. :confused: i will take pics if i find anything interesting, and probably some just because, when i show people i feel reassured that im not crazy for keeping this thing going on 6-7 years? 2009 Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 just the blinking red light on ecu, and the only codes it has ever really thrown was egr/ air temp sensor? / and one of the dizzy codes, oh yea because im off a tooth on the lower chain just remembered ...maybe that's why i have been rich? 1 Link to comment
tr8er Posted October 18, 2015 Report Share Posted October 18, 2015 oh yea because im off a tooth on the lower chain just remembered ...maybe that's why i have been rich? Um, good time to deliver that tid bit. 1 Link to comment
MicroMachinery Posted October 18, 2015 Report Share Posted October 18, 2015 Ray...if it makes you feel any better-I drove my 521 to and from work(50 miles) with a spirited run around the freeway loop(15 miles) on my lunch break; all without pics. 2 Link to comment
datzenmike Posted October 18, 2015 Report Share Posted October 18, 2015 US politics..... (geezus) Link to comment
TENDRIL Posted October 18, 2015 Report Share Posted October 18, 2015 So should I get bearings or not Link to comment
HRH Posted October 18, 2015 Report Share Posted October 18, 2015 I haven't watched the news in about 4 months, so I'm ignoring most of the political bullshit, but damn it's getting harder and harder. Got any room in Canada Mike? ;) 1 Link to comment
datzenmike Posted October 18, 2015 Report Share Posted October 18, 2015 Yup, spare bedroom. Full of parts. So should I get bearings or not Probably not enough mileage to worry about. Although you did have too much oil consumption? Check the clearances. Crank and rod are about the same. Too much clearance will bleed more oil out, throwing it at the rings. L20B rods....... 0.001" to 0.0022" L20B crank mains.... 0.0008" to 0.0024" 1 Link to comment
datzenmike Posted October 18, 2015 Report Share Posted October 18, 2015 Vietnamese people are out front collecting water cress from my ditch. (or some such polk salad or herb) I was about to run the weed eater through it but it's too damp lately. Link to comment
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