So I got it mostly apart here, and everything was going well until...

Tensioner guide pivot. There's a hex-headed plug there - right where it should be for the guide to pivot on - there's no pin in there.

In order to see in there I'm going to have to pull out the radiator, which I do not want to do.

Can someone please explain to me what is in that hole and how to get it - and the tensioner guide - out of there?

Thanks in advance.

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1988 420SEL