I know this topic has come up many times before I have searched and read everything, and I have the link to the DIY, http://home.comcast.net/~em-engineering/T2T013.pdf for cleaning the EGR Ports so please, no "SEARCH" bullshit. Unfortunatly I have a 1990, and I do not have the removeable EGR port covers!
My Question: Has anyone ever done a DIY on a 90 without the removable EGR Port covers? It says to drill a hole in the bossed area, But no specifications on the hole. I'm sure I have to drill to a certin specification in order to get an EGR port cover back in there. It also doesnt say how far to drill down. I'm very scared of ruining something and i dont have the money to go buy a dual runner intake yet, so hopefully someone's done this. Thanks in advance.
My Question: Has anyone ever done a DIY on a 90 without the removable EGR Port covers? It says to drill a hole in the bossed area, But no specifications on the hole. I'm sure I have to drill to a certin specification in order to get an EGR port cover back in there. It also doesnt say how far to drill down. I'm very scared of ruining something and i dont have the money to go buy a dual runner intake yet, so hopefully someone's done this. Thanks in advance.
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