Ok first of all my car is newly built and car has ls1 front conversion but no hood. When I hammer on my car it squirts oil in a mist onto my windshield but only while driving. It only gets oil on passenger side windshield and it's very aggravating. Already ruled out valve covers but I'm lost after that.doesn't seem to leak while standing still. Thanks in advance!

thats odd, but a very common place to develope oil leaks is thhe intake manifold where it meets up to the block, also refered to as the china walls, put your hand back there and feel around for oil!

Not to discredit your advice but how could it leak from back of intake manifold and get on windshield? So it either has to be pressurized or from the front passenger side of engine?

Could be where the oil pressure sender screws into the block, back near the firewall. At speed, the oil gets caught in the airflow and then back onto the windshield.

If that's what's happening, the firewall should be covered in oil.

Jake

It's not and again why would that only be on passenger side wouldn't it be all over?

Hmm blow by? Out of the dip stick. My engine started to do that reason I'm rebuilding it

I'm not trying to be difficult by I have lokar locking dipstick won't blow out? Btw it a brand new motor less than four hundred miles. Built her myself so I know it's done right. The only thing I can think is knock sensor? Does it have oil or coolant behind it?

I'd appreciate any ideas I need to figure this out?

Just a thought. I know at my school for oil leaks we mix die into the oil, then with a black light look for the problem. The leak lights up VERY bright and easy to see.

Check you PCV valve on the driver side intake. Only place I can think of past the oil sensor port that may pressurize enough to mist oil.

Sorry I forgot to mention. Absolutely no emissions on this car and the die thing would be a good idea if I had it lol too bad though that could come in handy. And could it be leakin from somewhere down low and getting blown up? Btw smokes like a MUTHA f****r

If it smokes that bad i would think it is getting on the headers, so probly behind them or below them possibly. I mean yeah it'll smoke just getting on the motor when it warms up, but i would think if its that bad then its getting on the exhaust.

Yes it's gets on headers but can't tell where from seems like it smoke more from drivers side but that side is wrapped and wrap is dry? I'm so lost on this. Not to be smart but if it was easy I wouldn't be asking lol

Ok, how bout Transmission? auto or manual? Just an idea if its auto then how bout that trans dipstick? You've probably already looked under it, double checking and even triple checking always prove helpful. look up behind the headers real good with a light. Theres probably a trail somewhere you just got to look hard, check to make sure all the sensor holes are plugged and anywhere emissions used to exist.

Tranny dipstick does make me think but that is lokar too? I don't think it can leak from the head gas. like that but my DA friends have me worried could it be from there or even from timing cover?

Well the problem is, it's possible from anywhere. I hate to say it but could come from the head gasket or the timing cover. If it leaked from the cover onto the pulley then it would throw it up into a mist. Which actually makes more sense cause it probably wouldnt mist like you said it does from a head leak unless the wind was catching it since your hood is off. You could just set the hood in place and give it a few rev's and see if anything shows up there, and i'd look down through the bottom too, maybe have someone else give it some gas and see if it starts leaking then.

Sounds good what about a big piece of white paper and rev it? And no oil on balancer. One of the main reasons I built this motor is because I had to tear the front off bc of a bad seal around the stock balancer. And what about taping paper down and taking it for a ride or do you think the wind would rip it?

Actually i was thinking that would be fantastic idea. Just be very careful where you tape it, that it doesnt catch on fire. I'd do some especially along the firewall, maybe strut towers and the k-member if you can or wherever you can get it in the surrounding area. It shouldnt tear up tape as long as you tape around all the edges, take it out and give it 2 or 3 quick runs. Ya know dont go out running the hell out of it or doin 150, take it back and see what you can find, I'd probly just start with it stopped first, maybe lay some paper underneath it and rev it a little see if it drips down.

if its throwing that much oil out to mist everywhere there has to be a good amount leaking out just turn it on and let it sit for a bit and watch for drips
is the side of the motor covered in oil?
the back?
oil filter?

There is only a few places oil could blow out like that. Like jake said the oil sensor. Other places would be the front main seal or the other seals there, valve covers leaking, maybe the intake. I doubt it is any futher down. Then again with the hood off it is hard to tell.

Who built this motor? Because it shouldn't be leaking oil anywhere if it was put together right. The one I did myself doesn't leak a drop now. It did from a bent valve cover. But no where near what you have.

I doubt it is blow by also. Unless it was shady work done to the motor. It would take alot to do that. I ran 9 psi with almost every ring land cracked. It never blew the dip stick out or oil around it. It would blow like 1/4 of a qt of oil out the valve cover breather. If you motor still has the vent tube hooked up on the passenger side valve cover. Then it would blow oil into the intake and smoke out the exhaust. Before you got oil blowing out of the dipstick.

i built the motor, all rings are seated great, and yes there is oil all along the oil filter but none on the driver side window. and oil all along the bottom of car drove it to school this morning never being hard on it and still misted pretty consistantly on passenger side, although smoke was pretty centralized on drivers side???? this has me so frustrated!

There has to be some visible evidence of oil on the motor somewhere if it is squirting out like that. I would suggest parking it, opening the hood and having someone rev it while you watch.

no hood on it and i could rev it by the throttle body so i could do it by myself, cant really trust anyone with cars around here, when i say rev it to someone here, all you here is rev limiter. ha country boys and their trucks...

also has NO oil on any valve cover. just put new chrome v covers on yest. and still spotless.

Lol i know that type. I'd still find somebody to give it a few taps on the gas, cause you cant work the throttle body while your under it. Unless you wanted to try tieing a string to it lol.

id rather not, knowing my luck it would get caught and rev up setting off a chain of events that ends with me being squished

I would check to see if it is dripping on the belt from somewhere and spraying it up. Do you have an aftermarket oil cooler on it that could be spraying it from, I figure that you would see it on the ground more than on the windshield. How about the front of the intake, maybe in the corners. Are you running a mechanical oil gauge that the line could be spraying from? I cant think of anything else.
:dontknow:

If on the driverside is where it was smoking. Look at that oil sensor. That or get under the car and look at the back of the block. Or back part of the oil pan. I would say the valve covers, intake or that oil sensor is leaking. Of course it could be anything. As said it has to be noticed somewhere.

Ok I changed the oil in it bc come to find out the 50 wt race oil was too thick and was being forced out. So I fixed one leak on oil pan. Well still coming out on drivers side now just put on new oil filter so I'm guessing it's my aftermarket oil sending unit. So I'll check that and get back with y'all

So did it blow that gasket out on the oil pan? Glad to hear you got at least some of it though. good luck

No it's that rubber gasket. Just tightened the bolts and changed oil and viola no leak. The only other thing it could be is the sending unit now. Also my car blow out pretty consistant steam and water out of exhaust and I'm fearing the worst. I guess it could be because it's so cold? Maybe condensation? No signs of a hg failure. No coolant bubbles and no watery oil or vice versa

Well another way to check just incase would be a compression test on your cylinders with the radiator cap off. If theres air bubbles in your radiator while you do the test then definetly head gasket problems. Probly just condensation like you said.

Just returned from the hospital (had my prostate worked on, LOL) so I'm playing "catch-up".

The knock sensor is exposed to coolant, NOT oil, so since you're sure it's oil the KS can't be it.

Most auto parts stores sell the dye that's added to the oil to help located the leak area.

Without the hood being installed the oil could be coming from several different areas. When I suggested it was the oil sender that's screwed into the rear of the block I assumed (there I go again) the hood was installed.

What I do when searching for a oil leak is to first clean off all the oil that's been sprayed out. I use carb cleaner or brake cleaner to spray all the oil off. I get the least expensive spray the auto parts store has. Many times that'll be the store brand. Buy a few cans.

So now you have to begin looking at the forward most location on the engine and work your way rearward. The fans could cause the oil to spray rearward. At some point I believe you'll find a heavy/heavier concentration. Once you do, that's where I'd concentrate by search.

After spraying off all the oil, start the engine and let it idle until it has warmed up. Rev, release, re-rev, etc. it several times (I don't rev a cold engine) - 2500/3000 should be enough. Evidence of the leaking location should show up pretty quickly.

Let's hope the smoke out of the exhaust is condensation, but if it continues to smoke, I'd borrow a coolant system pressure tester from AutoZone, O'Reilly's, Advance, etc., and pressurize the coolant system to 20 psi and see if the pressure holds. If it doesn't, then you're looking at TWO problems to solve.

Were you REALLY running straight 50 weight oil?

Keep us posted on what you find.

Jake

Ok yes I had 20w50 wt and the Smoke out of exhaust stops then goes then stops and goes. And I believe it's the harmonic balancer hub seal in the timing cover but I just replace that not ever three hundred miles ago? What cause these to go bad?

Oh, okay. Then it's not straight 50w.

Based on the stop, go, etc., I'd pressure test the cooling system.

As far as the timing cover seal, it could be the cover is damaged, the wrong seal was installed, or it wasn't installed correctly. There has to be a cause, since they're designed not to leak.

Jake