Question to N/A owners

scruffboy · 05-31-2006, 12:23 PM

I recently changed my valve cover gaskets on an 89 N/A Supra. After I got the throttle body and part of the intake off I had full access to the plugs. Now here we go. Right behind the 6th plug (last in line) is a hex shaped indentation. It sinks down about a 1/4 inch and then there is a threaded hole in the center, as if something belongs there. Mine is empty and open. Does anyone know what is supposed to be there? Should I plug the hole with a bolt? Any ideas would be welcome. I think Mr.Nickleye might be able to answer this one, as he seems to do a lot of work on N/A's but if anyone can help me I'd appreciate it. Thanks guys.

Scruffboy

05-31-2006, 12:23 PM	#1
scruffboy walbro fp Join Date: Sep 2005 Location: Kearny, New Jersey, USA Posts: 427	Question to N/A owners I recently changed my valve cover gaskets on an 89 N/A Supra. After I got the throttle body and part of the intake off I had full access to the plugs. Now here we go. Right behind the 6th plug (last in line) is a hex shaped indentation. It sinks down about a 1/4 inch and then there is a threaded hole in the center, as if something belongs there. Mine is empty and open. Does anyone know what is supposed to be there? Should I plug the hole with a bolt? Any ideas would be welcome. I think Mr.Nickleye might be able to answer this one, as he seems to do a lot of work on N/A's but if anyone can help me I'd appreciate it. Thanks guys. Scruffboy