Just picked up a neglected 1982 300d. Brought her back to life but the IP lines are leaking. The lines are tight. Could they have been over tightened wrecking the sealing surfaces? Is this a common problem? Will I need to replace parts? Also the Alda screw has been played with, any way to set back to factory? And the trans flares but there is a vac leak I still have to chase and engine mounts need replacing. Any advice on the lines leaking I want to start there first

Cheers