???Gas getting into Oil??? - Please help!!!

[TeamslipNslide]

Ok this is my 1st post but I have been a fan of this site for a couple years now always searching and finding my way out situations but this time im really stuck and searching hasnt help me. Ok so here goes my problem (Gas is getting into my oil) and i really dont know how. I just dropped this engine into my new shell because my old shell had gotten totaled with the engine in it. The engine is a 95 KA. Clues and hints for you guys... When i started the car up it ran super rich and back firing real loud and then dying. So i would struggle to keep it running for like 5mins even though i knew it was running really rich. I replaced the O2 sensor hoping that was it but still ran super rich for another 5mins. After a while the car started smoking white alot/not black so i thought blown head gasket. So I shut the car off and inspected it and noticed the oil was waaay to full. I drained the oil and the oil smelled realy stong of gas. I checked the ECU codes and came up with coolant temp sensor and knock sensor. I replaced my coolant temp sensor first and left the knock sensor alone but the engine starting to ping really loud so i replaced the knock sensor and that fixed the pinging. all codes are off and the car actually stayes on now but still runs rich and hesitates when i step on it making my head jerk back and forth when i drive lmao <--- I then changed the plugs because they were so fouled and that helped some too. Now I still get gas into my oil but just a little. I took my whole fuel rail off and primed the rail and no leaking injectors. I took the rubber off that goes between the intake and the injector and there was gas under the rubber but thats wierd because the rubber seems perfect. So im hoping that my problem, but would gas under that rubber cause gas to go into my oil and make my car run super rich? Thanks alot guys...please help me!!!

[azmsp84]

Just going to throw out a couple ideas, check the vacuum hose off the fuel pressure regulator. If the diaphragm is punctured fuel could be dripping into the intake system and into the cylinders. If that's good, I'd throw a fuel pressure gauge on it, check pressure of course, but also watch the pressure after key is off. If it drops rapidly you've got a leak somewhere. Hope this helps. Also if the oil has fuel in it still it will run like crap. Change it after you find your problem.

[TeamslipNslide]

Ok well i just went out to the garage to check the line. and so far it seems fine to me. The line does however have some sort of other thick line over it as if its there to protect it. I traced the line fron the Fuel Pressure Regulator all the way to the back on the intake and it has the protective type line over it. So i'll check tomorrow and take that line off and check the line itself. Thanks for the tips

[Cone Junky]

You may have fixed the problem with the coolant temp sensor and now you are just burning the already diluted oil. Like mentioned, definitely change the oil.Worst case scenario is you still have the problem and wasted 5 quarts of oil. But it will never run right if you stil have gas in the oil. At least your crankcase will be really clean when you're done

[TeamslipNslide]

Well i just came back from the garage and i took the line out from the back of the intake that goes onto the FPR and no gas came out of there. (I sucked and blowed on it) - lmao and still nothing. I know some gas is still leaking into the oil because i did refil new oil back in the engine and the oil level had gone back high again... (not as much gas as before but still enouph for the oil level to riase)...I dont know if the bad coolant temp sensor like caused my FPR to blow out or something because to much fuel was trying to get through it? None of my stores over here rents a tester for the FPR and a new one cost $93 unless I buy a shyts universal one off ebay which may only cause more problems in the future. Any more suggestions?
Modified by TeamslipNslide at 3:04 PM 2/5/2010

[TeamslipNslide]

Update...Ok so I still didnt get to go buy a Vacuum tester because of this snow storm so i went out in the garage and tried another method. I took off the line that went to the FPR then to the intake and started the car. The car ran the exact same way as if the line was on. So after than I took off my fuel return like that came from the FPR and both primed the rail and started the car and no fuel came out of the FPR. I tried that with the vacuum line attached and detached from the intake. (So now is this sopposed to be happening?)

[tyrodtom]

The way the fuel is probably getting into your gas is by the rings. Ever time you shut off the engine the excess gas left in the combustion chamber runs down the cylinder walls and into the oil pan. If you're running very rich this process is also going on while it's running. It's washing the oil off the cylinder walls and this process won't take very long to scuff your cylinder walls and piston skirts.

[TeamslipNslide]

Yea I think that whats been happening too...Shyt stinks because when i start it now, freaking blue smoke comes out the exhaust when i start now and that never use to happen -- But its definitely my FPR rite?

[tyrodtom]

I dojn't think a completely jamed FPR has the capacity to make your engine run that rich. I think you need to look for a jammed injector, or injectors, a injector that is spraying all the time, not closing, or closing completely, when the ECU sends the signal to shut it.

[Klits562]

Yea I think that whats been happening too...Shyt stinks because when i start it now, freaking blue smoke comes out the exhaust when i start now and that never use to happen -- But its definitely my FPR rite?

If oil is leaking past your piston rings than no its not your fpr its your piston rings. The black smoke is another indication of this cause now oil is being pushed up(instead of down like the fuel) past your piston rings and being burned in your combustion chamber causing the black smoke from your exhaust.But now you need to figure out why your running rich, could be timing or maybe your fpr.

zerothread/294958leak down test tutorial you should surely do this and i bet it'll find your problem.Also you should do a compression test to see if your piston rings are bad.http://www.nicoclub.com/articles.php?id=159838tutorial for a compression checkhave fun and good luck
Modified by Klits562 at 11:10 PM 2/7/2010

[TeamslipNslide]

I dojn't think a completely jamed FPR has the capacity to make your engine run that rich. I think you need to look for a jammed injector, or injectors, a injector that is spraying all the time, not closing, or closing completely, when the ECU sends the signal to shut it.

I roughly checked for a leaking injector be taking the fuel rail off and priming it and nothting leaked or dribbled out the injectors. I also cranked the engine over and they all had the same pattern of sprays on a paper towel i had layed under the injectors. Im going to buy a FPR this week and tell you guys if this helped or not. (I hope it does)

[TeamslipNslide]

If oil is leaking past your piston rings than no its not your fpr its your piston rings. The black smoke is another indication of this cause now oil is being pushed up(instead of down like the fuel) past your piston rings and being burned in your combustion chamber causing the black smoke from your exhaust.But now you need to figure out why your running rich, could be timing or maybe your fpr.

zerothread/294958leak down test tutorial you should surely do this and i bet it'll find your problem.Also you should do a compression test to see if your piston rings are bad.http://www.nicoclub.com/articles.php?id=159838tutorial for a compression checkhave fun and good luck

Modified by Klits562 at 11:10 PM 2/7/2010

Thanks for the links...I never use to burn any oil or anything like that...Its from what "tyrodtom" I thnk said above...All the gas washing the oil away making the engine have no lube then scuffing everything in there...I hope its not to badly damged and burns oil all the time. I hope some engine restore can possible help me out with some other engine additives.?
Modified by TeamslipNslide at 9:18 AM 2/8/2010