Plenum Port + Standard Gaskets = Bad Idea

[gbmidyear66]

I completed a top end Port in March and have been driving my Z as a Daily driver since (well I also sold my SUV and am waiting for my new one to arrive).

Car has been running great - but in the last week I'm getting a vacuum leak sound and I'm leaking a small amount of antifreeze from the Passenger IH plug (3rd #$%^& time I have tried to seal it with gasket cement).

When I put it back together in March I used a set of standard thickness gaskets I had purchased some time back - I trimmed them to the opening of the port. When I took her apart tonight - the gaskets had literally been sucked inward from the vacuum . I guess trimming them was a bad idea..... Luckily LGAFF (who did my port) had sent me along a new set of the thicker gaskets. I put those in tonight - I hope this is a permanent fix.

I liberally wrapped the leaky IH plug with teflon tape this time - hope this does the trick.

She's running smooth and quiet again.....