Nope it's dry behind there
(or is meant to be ;) )
I searched all my pics for one showing the hole but can't find one, I used an inch holesaw as I needed to be able to get the plug in as well, but you could start with a 1/2" drill as from memory the plug is M10 Allen head.
I "forgot" to install that Pipe Plug on one of my rebuilds and had the engine 95% done when I found it in the parts washer.... :(
I used a 1" hole saw and cut a hole in the corner of the cover using grease to catch the chips as where the plug is isn't inside the engine.
This allowed me to...
I had more $ in my 7M than most Mk3 owners and never considered it "bulletproof" :nono:
It was a great engine that survived many many hours on the Dyno a lot of KM's but it was still a 7M with it's known issues so there was a question mark.
Having said that "psi" = fail, the question...
Bolt the case on then use a depth Mic, most people won't have one so in a pinch the Tail on a Vernier will do the job.
A low tech way would be place a straight edge or machined piece of metal on the timing case holding if flat then slip some feeler gauges under till it's a tight slip fit, add...
If the Turbine housing expands the WG shaft get's loser...
I ran Ceramic Coated, header wrap and a blanket and never suffered any of this Mystery Oil baking and seal failure...
(seriously where do you pull this garbage from?)
They make blankets for IG Turbos that already have a cutout for...
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