Most people rotate the engine. On DeLorean is not enough clearance between crankshaft pulley and muffler to fit socket & wrench. Can't use a flat wrench because nut is recessed. You're suggesting moving car in gear -- easier said than done. Imagine stress on fascias. Plus is somewhat precise measurement. If alone, you'd spend more time pushing & looking than simply removing muffler. Guarantee your method would never work on a 5,000 lbs Lincoln. How long is your garage anyway? Isn't that difficult to remove muffler. Because is stainless, won't rust to catalytic converter. Have replaced my 6mm bushing bolts with stainless for same reason. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, "Elvis Nocita" <elvisnocita@xxxx> wrote: > Bill, > why would you take off the muffler to rotate the crankshaft ? > Remember - there's a transmission and some wheels mounted to the > motor, too ! Simply move the car an leave the muffler where it belongs. > To make it easier you can take out the spark plugs and replace them > while there. > > just my 2 cents.... > > Elvis > > > > 4) Have never adjusted PRV valves (actually tappets that push on > them), but don't look any different from other adjustable valve > trains. Time consumed isn't going to be actual adjusting -- is going > to be digging down to valve covers, then putting everything back. > You'll also lose time removing/replacing muffler to access big nut on > crankshaft to turn engine. > > See now why I recommend doing your own mechanic work? > > Bill Robertson > #5939