It's rare to replace one. The journal(s) would have to be so screwed up they couldn't be machined without changing size by a great deal. even if you have a replacement, block and caps will have to be machined so have an engine rebuilder drop it in for you. It is also rare a crank would go with no other serious damage to parts- check the whole engine.
How do you replace crank shaft sensor on 2005 Chrysler 2005 300c?
AnswerCheck the crank pully bolt. If it has come loose you will have a leak.The crank pully bolt does not have anything to do with the crank shaft seal leak. Thebolt is independent of the seal. To replace seal remove crank shaft pully and you will have access to crank shaft seal, pull out & replace seal.
I would recommend that you do put a crank shaft head on a crank shaft. Putting any other type of head on a crank shaft could possibly break the head.
Check your crank shaft sensor first.
The crank shaft sensor on a 1998 BMW 74Oil is located down near the crank on the front of a motor. It is super easy to replace but sometimes reaching the harness wire is a little bit difficult.
It is on the front of the crank shaft and under the timing belt cover. You have to remove the crank pulley and all the belts and then the lower timing cover. It is not a job for a beginner.from : http://repairpal.com/crankshaft-sensor-569
Crank shaft
"http://wiki.answers.com/Q/How_to_replace_a_2002_land_rover_discovery_crank_shaft_sensor"
The engine crank shaft is inside the engine
The crank sensor on a 2001 Malibu is located on the bottom of the engine near the crank shaft. It monitors the rotation and speed of the crank shaft.
no it's simple you just drop the crank its on the top unskrew the top bolt and replace new skrew the bolt back in then put the crank shaft back simple
400 has a longer stroke