Don't know if it has been mentioned yet but always check any fluids and replace them asap its hard telling if this has ever been done. And a second tip get some paraffin wax and a propane torch. This will usually allow you to get any stubborn bolts nuts sparkplugs and such out. Heat the bolt,nut or sparkplug up with torch apply wax and repeat if necessary. I say this because I had a sparkplug seized in the head of my 86 2.5. It works, believe me. got the junk autolights out and some good NGK v powers in there now.