Started today with replacing the head gasket. Did all the grunge work before I can take the head off tomorrow. I have all the intake bolts out, except for the one closest to the firewall. The heater core pipe is in the way and needs to come off, it looks like it's hold in place by two hex bolts which also hold the bracket to hoist the engine.

Am I correct in loosening both hex bolts to remove the heater core pipe and how is it sealed?

Thanks.

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).