Light smoke on start up

[hzhardy]

I have a 07 escalade with a 6.2 l92 and 180k on the clock that smokes when starting. I already replaced the valve seals with a new set of  viton replacements. When i replaced the seals the plugs were all ashy so they were replaced as well. I pulled seafoam through the brake boost line to clean the top end, but i am still getting some smoke on start up. From what i understand these engines do not have a pcv valve, so what else could it be?

[txab]

Worn valve guides if the oil is coming from the heads. True there is no "PCV" but it does have a fixed orifice on the drivers side cover that provides for circulation

[hzhardy]

I think I am gokng to replace the driver side valve cover after I get done redoing the rearmain seal this weekend. I read a tech bulletin that said if they get gunked up they are bad about pulling oil into the intake and the driver side was bad. Crazy since this thing has never been late on oil changes and have the previous owners service records. I think it was fed convential early on though? 

[hzhardy]

On 1/30/2018 at 10:29 PM, txab said:

Worn valve guides if the oil is coming from the heads. True there is no "PCV" but it does have a fixed orifice on the drivers side cover that provides for circulation

Would the seals not prevent excessive leak by since they shrough the guide? I was not able to check for play since it was done in the truck with air pressure on the cylinder.

[carnau]

19 hours ago, hzhardy said:

I think I am gokng to replace the driver side valve cover after I get done redoing the rearmain seal this weekend. I read a tech bulletin that said if they get gunked up they are bad about pulling oil into the intake and the driver side was bad. Crazy since this thing has never been late on oil changes and have the previous owners service records. I think it was fed convential early on though? 

This is what you need to do. There is actually a way to test it if you want to know for sure.

Here is the Valve cover you need - http://amzn.to/2FCSVyt

1 is the old design

2 is the new design

 

Here is the Valve cover you need - http://amzn.to/2FCSVyt

 

 

[hzhardy]

2 hours ago, carnau said:

This is what you need to do. There is actually a way to test it if you want to know for sure.

Here is the Valve cover you need - http://amzn.to/2FCSVyt

1 is the old design

2 is the new design

 

Here is the Valve cover you need - http://amzn.to/2FCSVyt

 

 

What is the test procedure?

[hzhardy]

I took the truck to the AFB hobby shop yesterday to do the rear main seal as it has a bad leak (it was so bad i have been saying it no way it could be the rear main). Either way it was an absolute night mare. The base does not have high lift transmission jack so it ended up being a floor job.

 

I took both crossmember out and still could not get the transmission to tilt down enough to reach the top most housing bolt with a swivel sicket! After over an hour frustration i noticed the oil pan was hiting the front differential (would have noticed it imediatlly in a lift!!!), so once unboltbolted it was easy peasie... unfortunatly i ran out if time and the shop closed and was not able to finish.

 

When i did remive the transmission I noticed the the rearmain seal was not the culprit as i suspected but the plate gasket itself failed. The oil apeared to be coming up high around the cam oil passage and when i removed the plate the gasket rubber was brittle and fell appart off the metal core. I will say the saccity cover allignment and seal install tool was awesome and made insall super easy! 

 

Now unfortunatlly I have to wait till Wednesday for the hobby shop to open up to finsih up. It wont take to long once I get back on it since the transmission and transfercase is back in the truck and just need the hook up the flywheel to torque-converter and put the y pipe back in among a few other small things.   With my dissabilities i am getting were i cant do these jobs anymore because i can barely move today lol.