My Twin-Turbo SBC 240Z Build by PaulR

1 minute(s) of a 13 minute read

I think the seal was bad all along and the added blow-by is now pushing oil out the seal. It may be hard to inspect because it's so tight to the firewall (set back even further than JTR by 3/4 inch). Maybe if I pull the distributor I can get a better look. At worst, I'll pull the intake and re-seal. I didn't expect much blow-by since I did a leak-down check before I added the turbos and the worst cylinder was 97% The thing I don't understand is why it got worse when I disconnected the PCV. I unhooked the line that goes to the base of the Throttle Body and plugged it and just left the PCV in the valve cover open and I got lots of oil running down the bell housing. I hooked it back up and its leaking just a little.

Thanks for the reply... I'm now hooked on boost