Isuzu rodeo engine seized. how can you check for what is the caus
I can not turn the crankshaft by hand with socket and breaker bar. How can you find out what caused the engine to seized. Do i need to remove the timing belt and try to turn the engine head to see if the head turn than try to turn the crankshaft to see if the crackshaft turn? or is there any ways better than this ways?
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Re: isuzu rodeo engine seized. how can you check for what...
If engine has seized, the likely cause is that a crankshaft/rod bearing has failed. Unless you ran vehicle low on oil, this can generally be considered to be a material failure. (unless you ran the rpms up way over "redline") Generally the engine can now be regarded as JUNK and just be replaced. You can remove the cylinder head and inspect it to see if it's re-usable, but you should not try to turn it by hand while installed, or you may bend valves.If you decide to re-use it, you will need to completely clean it to remove debris from failure otherwise any junk in passageways can destroy the block bearings in the new one you bolted it to.
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You need to put a socket and breaker bar on the crankshaft pulley bolt and try and turn engine over by hand. If it doesn't turn ( It should turn with slight force ) the engine is seized or something is binding causing it not to turn
Remove timing belt cover and the timing belt. Line up the cam gear timing mark with the mark that is behind it. Then, set the crankshaft pulley timing mark to zero degrees or whatever the book says. Then re-install the timing belt and re-torque the timing belt tensioner to the proper torque. Turn the engine one full turn, with a breaker bar and socket. Re-check the timing marks on the crankshaft and camshaft. Re-install the timing belt cover and everything else you took off to get to the belt. Be sure to torque the crankshaft pulley bolt to specs.
check see if you have12.5 volts at batery if not alternator failed.if alternator good,could have broke timing belt,or internal engine or transmission damage check see if you can turn engine with a large 1/2 socket and wrench if not engine could have seized up.
Here is a way to rmove the crankshaft pulley screw. Its fa previous solution of mine. But it will work for you. And this is how I always do it.
Get a breaker bar, 18 inch or longer, put on a socket that fits the crank pulley screw. Note the direction the crankshaft rotates when the car is running. Position the breaker bar so that when you turn the key the breaker bar will hit the ground and cause the screw to be loosened.
Ideally the socket will be on the screw and the breaker bar will be touching the ground. Turn the ignition long enough for the starter to turn the engine, and immediately turn the key off. Turn it for a half second and back off. Just long enough for the starter to engage for a split-second.