Smoke on start-up and at idle

[turbonut85]

Getting a good size puff of blue (oil) smoke on start-up. It also smokes at idle. Doesn't blow smoke while driving, so I'm prety sure it's not the turbo seal. Motor has maybe 3k miles on it. Rings should be seated by now, so I'm not sure it's blow-by. PCV valve has been replaced twice. I have an aftermarket MAF pipe so the breather tube (S shaped tube that connected to the stock MAF pipe from the oil fill tube) is wide open. Any ideas??? ---Keith

BTW---this is on the 85 Hot Air....

 

[BRAD_PADGETT]

Keith- I had a very bad situation with the stock oil fill tube and breather hose to MAF pipe. It got blocked and the oil fill cap became soaked in oil. Bottom line was pressurized block. This blew the seals on 3 new turbos before Limit Eng. figured out the problem. The stock oil fill tube and breather hose setup are in my opinion a complete POS. I removed this setup and went to the oil fill tube and breather on the valve cover. I would try running with the oil fill cap removed. If this helps you have an idea of you problem. Good luck. Brad

 

[RegalT-type85]

Keith- I had a very bad situation with the stock oil fill tube and breather hose to MAF pipe. It got blocked and the oil fill cap became soaked in oil. Bottom line was pressurized block. This blew the seals on 3 new turbos before Limit Eng. figured out the problem. The stock oil fill tube and breather hose setup are in my opinion a complete POS. I removed this setup and went to the oil fill tube and breather on the valve cover. I would try running with the oil fill cap removed. If this helps you have an idea of you problem. Good luck. Brad

X2 Had a soaked breather, I changed it, helped but might have done it's damage already. Get a High tube breather from any vendor or locking oil tube from summit or jegs and use a open breather or closed with outlet, run it to the intake. I would run it to the intake myself.

 

[O SO LO]

I agree with the above posts!! wait till it blows oil back thru the turbo oil drain gasket!! Like I have any experience like that...

 

[turbonut85]

Only thing that doesn't make sense to me....the MAF pipe I have is a solid piece. The S shaped tube coming from the oil fill tube is not connected to the MAF pipe or anything. It's wide open in the engine compartment. In fact, there is some oil on the chrome MAF pipe that has blown out of it. I wouldn't think I have that much crankcase pressure if that tube is wide open. Could the intake gasket be leaking into the lifter galley under boost?? I did have the PCV valve blow out of the intake once...but it only happened the one time, and my setup hasn't changed.

Could someone post some pics of the options for routing the PCV and breather options?? Thanks again guys. ---Keith

 

[Jerryl]

Only thing that doesn't make sense to me....the MAF pipe I have is a solid piece. The S shaped tube coming from the oil fill tube is not connected to the MAF pipe or anything. It's wide open in the engine compartment. In fact, there is some oil on the chrome MAF pipe that has blown out of it. I wouldn't think I have that much crankcase pressure if that tube is wide open. Could the intake gasket be leaking into the lifter galley under boost?? I did have the PCV valve blow out of the intake once...but it only happened the one time, and my setup hasn't changed.

Could someone post some pics of the options for routing the PCV and breather options?? Thanks again guys. ---Keith

I think you may possibly seeing two issues:

1-Smoke at start-up.
This "could" be "valve guide" related, or oil in the combustion chamber related that makes it past the rings.

2-Oil out of the breather.
This is more than likely crank case pressure related.
I agree, ring "should" have seated. - I had one motor that the rings never seated after 1500 miles. LOL!
It was smoking to my continual embarrassment! :biggrin:
That is when I learned the negative affect on octane from oil.

Disconnect the WG, and drive it around, no boost (!!) and see if there is oil on the breather.
If "Yes", possibly rings (Or HG)
If "No", possible intake leak.

PCV is probably not going to solve the problem.

 

[87GN_ponykillr]

Funny you should post this.... My car has been doing the EXACT same thing. I have the same style intake pipe (solid) with no connection from the fill tube. Smokes on start up (light) but heavy smoke when I come to a stop. I was thinking it was the turbo also? The only thing is my motor is not a fresh build but only has about 55K miles on it. Compression is good and everything else seems tight... I'm subscribed

 

[RegalT-type85]

I wouldn't run open breather, I TOSS that away. I NEVER had a problem until i went with the crowd. Breather got soaked I DIDN"T know, turbo blew a seal........cost was a pain in the A#@. Now I run a Mr gasket breather with a tube from it to the intake. Runs, idles better. Now i might,should get a catch can or get a locking Oil tube,raise the breather out of oil's way.


Again, if you have this problem, try putting the breather back to the intake, see if it helps.

Now I'm sure others use open breather and have no problems. Another tip for this is TO much oil will soak the breather, maybe i had to much oil, maybe i didn't. Some things should be left stock IMO

 

[turbobooster]

got me thinking now some pics would be nice to see wat a proper setup should b and look like i have the stock maf pipe and oil fill tube setup and id hate run into this problem i do plan on making the changes like most of u have

 

[RegalT-type85]

Sure thing, I have a spectre(autozone brand) intake with a AEM 3x9 fliter and LT1 MAF. I haven't be able to get the Turbo drain gourment in ( i know seemed easy) just pop it in there it goes, nope it's hard thick rubber, little leverage,space to work with When I get that done I will take some pictures of my setup. IN fact Post a new thread of INTAKE PICTURES on HA section.

 

[87GN_ponykillr]

got me thinking now some pics would be nice to see wat a proper setup should b and look like i have the stock maf pipe and oil fill tube setup and id hate run into this problem i do plan on making the changes like most of u have

Id like to see this also... My car has the fill tube with the soaked filter still in place but is not hooked up to the intake. Im going to put the old intake tube back on and see how it runs. I should replace the soaked filter first I suppose.

 

[RegalT-type85]

TIP, the best and only way I could get that tight A@$ hole of a drain gourment in, was to use a razor and slighly cut it. Not all the way but cut the head (not off ) down. So one side of the gourment can go it then the other instead of it fighting you back. The top lip was left uncut, Just a tip guys