engine rotates clockwise if looking at the crank pulley
there is known problem sometimes belt cover due to age gets brittle and breaks apart. worth checking maybe piece got stuck on cambelt and prevents rotation clockwise.Hi, that rotation is blocked when i put a wrench of the crankshaft pulley...
question then remains what causes this blocking...
unlikely. if you can turn crankshaft one way, but not another gearbox should be in N. if it's stuck in gear you shouldn't be able to turn engine one or another way.Could it be possible the crankshaft is mechanically blocked by the gearbox?
Even when the selected gear is N
Ok thanks, i will start testing how much the crankshaft can be turned by hand counter clockwiseunlikely. if you can turn crankshaft one way, but not another gearbox should be in N. if it's stuck in gear you shouldn't be able to turn engine one or another way.
of course depends how much can you turn crankshaft by hand. is it 90 degrees, 180 or full revolution?
Hi, the car is on the car lift nowDid you pull the spark plugs and see if one of the cylinders is full of gas? Can you let release the E brake and roll it forward and backwards. If it is truly in N you should be able to do that. At this point I would probably give up and head to dealers. Sounds like something beyond a simple home shop diagnostic. This is the first time I have heard of something like this on a 4C and many of us including me do put our cars in Winter hibernation. In my case I am in Michigan and a 4C makes a lousy snow plow ;-)
hill-start has no effect when ignition is off.
Will open the valve cover to double checkhill-start has no effect when ignition is off.
if engine still rotates only one way most likely there is something broken of and gets stuck turning it other way. you will need to inspect timing belt and what's happening under valve cover