Why do engine crankshafts break?
Engine crankshafts usually break when there is too much pressure on them. Some have flaws and may break under normal use.
When the crankshaft gets worn out, the engine will make lots of very loud knocking and or squealing noises. The engine may also lock up tight and not turn over. Damaged crankshafts are usually the result of not changing the oil often enough or not having enough oil in the engine. Crankshafts just dont wear out on their own.
Double check that all sensors are hooked up. Check for spark at the plugs. Check for fuel pressure. If you are working on a Chrysler product you need to make sure both engines are from the same year. There is a difference in the what the crank and cam senors read. (the tone wheels on the cam and crankshafts)
Hitting a rock can certainly cause some damage, depending on the size of the rock. Most commonly, the shear pin in the flywheel keyway will bend or break (it is made to do so) and the engine won't start or will be hard. Not as common is for the drive shaft to bend or break, or internal damage to the engine.
Is there a way to repair a broken crank shaft in a 1995 Mercury Villager without replacing the entire engine?
My name is Gary and I am a ASE certified master mechanic in both truck and auto. In the past year I have had two 1993 Mercury Villagers with broken crankshafts. The break is about 2 1/2 inches from the front of the crank. You can just replace the crankshaft with a crank kit(http://www.rpmmachine.com/crankshaftkitsnissanmenu.html), but this still requires you to pull the engine and you need some mechanical skills to complete the job correctly. In…
What is involved in changing the engine in a 1966 Satellite 4 speed car with a 383 cu in engine to a 1969 440 cu in engine?
It will bolt in with exception to the 383 exhaust "Y" pipe. However I remember some of those 383 and 440's had different crankshafts between the standard and the automatics. The crankshaft was machined deeper to accept the standard transmission input shaft. Be sure to check the back of the crankshaft on that 440 and to also install a pilot bushing/bearing.