yes
unless you can build a engine you need to take it to a mech. or replace the engine with a rebuilt one.
You don't, you replace or rebuild the engine.
You have to remove and disassemble the engine to replace the crankshaft.If you mean the crankshaft position sensor, then yes. You access it from underneath. It is just above the oil pan on the back of the block.You have to remove and disassemble the engine to replace the crankshaft.If you mean the crankshaft position sensor, then yes. You access it from underneath. It is just above the oil pan on the back of the block.
No
i have replace the crankshaft sensor but the code cannot be erased
changing the crankshaft sensor
Replace the crankshaft and camshaft senors and then clear the codes with an oBD II engine scanner and that will fix it.
not worth changing the crankshaft, better to swap the engine with new or used engine, now if it is the camshaft that is more cost effective.
An oil pump on a 1994 Honda Civic is found in the bottom end of the engine. To replace the oil pump the engine will require a rebuild as the crankshaft will have to come off as well.
yes when the engine is out and upside down
I assume you mean to ask how difficult it is to change the main bearings WITHOUT pulling the engine out of the vehicle. Don't bother. To properly replace the main bearings you need to pull the crankshaft away from the engine far enough to be able to put a micrometer on the bearing surfaces of the crankshaft. To do that you need to disconnect the crankshaft from the transmission AND pull the pistons part way out. Also, depending on the type of seal used, many rear main seals must be replaced by pressing them into place after the crankshaft is in. Don't even try to replace bearings without first verifying the status of the crankshaft. It must be round and within tolerance. If the old bearings have worn there isn't much chance that the crankshaft hasn't been affected.
remove the engine and transmission from the car, then remove engine flywheel and it will be right there