2006 LBZ dip stick blowing out under high boost

[cardiac]

Put 50000 miles on new engine with no issues and now at 38 to 40psi boost on the stock 63mm turbo with bat wheel the dip stick pulls up about 2.5 inch and blows oil all over the firewall. Have stock valve cover pvc outlets rerouted to the bottom. Tried new oring on dip stick still does it. Does anyone make replacement breather cap for the valve covers? Thanks Joe 573-691-0095

 

[Chevy1925]

you might want to see why you have that much blow by. are you running forged pistons? this isnt a typical issue from what you are posting.

DHD makes an adapter to -10 an for the stock valve cover breather but you need to pull the valve cover and verify the check valve is operating correctly and is not stuck.

usually guys will change to a different valve cover like one from Socal Diesel to run a larger breather port.

 

[cardiac]

Thanks on the feed back, running fingers piston, doesn't happen unless I'm hard on it. Will check on the other valve covers.

 

[cardiac]

OK looking at the billet valve covers, where does the breather go?

 

[Chevy1925]

I would be doing a compression check and leak down test before dropping money on a billet valve cover…

 

[juddski88]

Or just try taking the pcv valves out completely to start and see if that reduces your crankcase pressure at all. I've run very loose clearances and never run into excessive pressure issues, but I have run into weird case pressure issues on stock long blocks, and a thorough check over the venting system usually fixes the problem.

 

[cardiac]

I've got the DHD 5/8" hose vents in with each one ran to the bottom, what is the stock square block on the vale cover?

 

[cardiac]

Any pics of the venting system available? And thank for the help

 

[Bdsankey]

I've got the DHD 5/8" hose vents in with each one ran to the bottom, what is the stock square block on the vale cover?

That's the actual valve that they're telling you to inspect.

 

[cardiac]

Is there a kit to delete it, or is that a no no

 

[Bdsankey]

Is there a kit to delete it, or is that a no no

To delete the PCV? you can pull the diaphragm but like others have said, you need to inspect the system and make sure everything is working properly. Don't just do things to do things, make educated decisions instead.