hi guys got a lil problem i started my car up for the first time last week, after the heads / cam install. just let it run for about 20 minutes, then changed the oil. the oil was fine. took the car out yesterday and today, drove approx, 20 miles, and changed the oil again. this time, the oil was leaking out like water it stinks like gas, so i dunno?? i didnt see any bubbles on the dipstick tube before changing it. let me get past some probable causes beforehand. the head bolts all had thread sealant. so did the wp bolts. i didnt put any thread sealant on the intake manifold bolts, might that be the cause?? im 99% sure the intake manifold gaskets went on fine, they cant move really and you cant put them on wrong. now, the head gaskets on the other hand, are whats worrying me as well. i had asked which way they went on, and was told with the numbers facing up, although theres a little arrow beneath the numbers (on the gasket) pointing down?? so anyway, i put them with the numbers facing up. i opened the radiator cap and it was full?? i dunno, im stumped guys. any thoughts? is it a leaky injector? intake manifold bolts : no selant? or head gaskets? or is this normal for the oil to thin out like this after a swap like this??any thoughts are greatly appreciated, thank you very much

 

Sure doesnt sound good to me. I dont have any suggestions really, but thats definitely not good if it came out like water and smelled like gas, I dont really know how that much gas could get into the oil unless maybe a ring or something?????

 

see, the oil smelled of gas even before i done the work on the car, which i attributed to a fouled plug. but even then , the oil never leaked out how it did now. thanks just the same, i know it cant be good.

 

What was you're oil pressure like before you changed it? If it cam out like water, I would assume you pressure would have been very low. Just a thought,

Kyle

 

nope, oil pressure was A OK all the time, kept a constant eye on it. the car starts better than it ever did, runs wayyyyyy better, oil pressures fine, im stumped basically. thanks.

 

Im sure you replaced the plugs since you said you maybe had a fouled one, maybe there was still some gas in there from before, did you take the oil pan out and clean it when you replaced the gasket ifyou did. If you have good oil pressure and it runs just right, dont worry a lot about it until you put your normal oil back in after the 100 miles.

 

If it really was water in the oil you'd know it... it will look like a creamy, bubbly, paste floating in the oil.

It is normal to expect more gasoline in the oil on a cam'd car. Some gasoline (and other impurities) always makes it past the rings, especially on a cold engine. A cam makes this much worse. This is one of the major reasons it's bad to never get engine oil to operating temp, as that's when the impurities are "boiled" off.

If performance is as expected, you are running a stock program with that CC306 cam, and you've only put "cold" milage on the engine it may be that you're just overreacting

On the other hand if it really is "coming out like water" I would say you are seriously risking washing down the cylinder walls with gasoline. Have you pulled some plugs? Have you pulled the fuel rail and injectors and primed the fuel pump to make sure you don't have any leaky injectors? It would be nice to be able to hook a scanner to the car to see what kind of BLM's and pulsewidths the PCM is using. Is there anything noticable with the exhaust fumes??

I know it's hard to be descript but "coming out like water" may be hard to diagnose.

 

thank you very much for the insight Buttercup no stock tune, it was programmed by pcmforless. the car idles great, etc. well yeah, the exhaust smells very gassy. all new plugs as well . the wires are fine. it has a slight stumble at 1700rpm, and only there (havent gotten it over 4 grand yet), and only sometimes, but i doubt thats got anything to do with it. i actually took the car to a garage to get the oil changed (didnt feel like doing it), and the guy goes "uh oh". so were both looking at it coming out real thin and leaking like water would near the end. hes thinking its an intake manifold gasket, but i really dont think its that. we couldnt smell any coolant, etc. you think they could scan it with those "garage scanners" and see how it is? or only with tunercat, etc.? i didnt do that trick youre saying to check the injectors though. so basically, i pull the fuel rail, put the ignition to the on position, and if theres a leaky injector it would come out i suppose? thank you very much man. and thank you to everyone else in advance cause i wont be back till tonight. so dont think im an a** for not replying. be good everyone

 

You shouldn't have any gas in your oil period! Check for a stuck injector maybe. Check your fuel pressure too.

 

nope . didnt pull the pan. but yes, i put all new plugs inside thanks

 

Since the LT1 uses a dry intake manifold I don't see anything leaking in from there Like I said, it should be fairly apparent if it's coolant that has contaminated the oil. Pulling the dipstick is usually all that's required to check for an internal coolant leak, it will have the "froth" on it.

That's exactly how easy it is to test for a stuck injector. If they leak that bad you will see one/some of them leak fuel when the key is turned to "ON".

Any good scanner should show BLM's which would point to a fuel problem, such as a bad injector. If you have this option it may make things a bit easier.

 

Did the oil smell like gas.When oil is hot it tends to flow real well.One of the reasons you warm it up before changing it.

 

Off the wall possibility... check the vacuum line to the fuel pressure regulator for fuel. A leaky diaphragm in the regulator will dump fuel into the intake manifold.

 

yup. the oil wreaks of gas, so does the exhaust.

 

hmmmm....... so if the black line that goes to the fpr smells/has gas in it , it means the regulator itself is bad? i dont have an adjustable fuel pressure regulator, maybe i need that ??( i dont think i need one thats why i didnt get it). so, the list

1) check vaccuum line to fpr
2) check for leaky injector(s) a la Buttercup style
3) get fuel pressure checked
4) get car scanned

i didnt get a chance to check the oil for "froth" now cause its black outside, but will check that as well. worse come to worse, would a bad piston ring cause this?? or the car would run really bad if that was the cause? possible the miss im experiencing below 2000 rpm is interconnected with this? thanks a lot for all the help so far guys any one else whos got any opinions, theyre more than welcome as well

there is a slight "whining" sound (kind of like a supercharger a bit) when i give it revs. it "whines" up and down. didnt do that before. doesnt sound bad, but i mean.... also on a sidenote, you know the wire that goes from the top of the opti to the drivers side of the intake?? yeah , that one i put it straight on the intake, instead of putting it on a certain piece that goes between it and the intake. i couldnt figure out which "thing" went in that hole. possible problem there, or not? thank you all