engine will not rotate

suprabahamut · 05-24-2007, 03:12 AM

before I could even get a compression check the engine will not rotate, first I tried to rotate the crankshaft with a socket wrench and it turned only so far one way and so far the other way so I rotated it counter clock wise till it stoped and tried to start it. it would try to go and just stop at the certain part it stoped at clock wise. what could be wrong? has any one had this problem before and fixed it. and some one mentioned engine seize, what is engine seize and can it be fixed.

cre · 05-24-2007, 06:14 AM

Why are you trying to turn the crank manually for a compression test? Sounds like hell.

Pull the spark plugs and check for anything inside the cylinder which could be getting in the way... such as a valve. Have someone using a flashlight watch to see if the pistons are moving while you try to turn the crank. If the crank turns without the plugs in you're just fighting with the compressing air.

suprabahamut · 05-25-2007, 02:21 AM

no I did not try to turn it first, I tried to start it with the spark plugs out and the compression checker in the spark plugs place, but the engine would not rotate or start so I looked in the haynes manual and it said to try and turn the engine with a socket wrench and that is when the engine would only turn so far clock wise and so far counter clock wise. and if it turned over I was going to compression check it, but you said it could be a stuck valve? how would you check it? with a light looking into the spark plug hole and if it is a stuck valve would I have to just remove the valve cover and fix it or the whole head

IHateHacks · 05-25-2007, 02:28 AM

Wow. What did you do to this engine? Did you drive it and now it won't rotate? Rev the shit out of it with no oil in it racing a Honda?

You definately have catastrophic engine damage on your hands. These are not interferance motors, so you can rule out valves causing this problem. If you can only rotate the motor so far one way and another, then you probably threw a connecting rod. Go look in your haynes manual to see what that is.

A little background on how this car was running before would help. Did it ever run? Or did you get the car like this?

cre · 05-25-2007, 03:16 AM

Don't be so quick to rule out a valve. If a spring snaps the keepers can drop out letting the entire valve drop into the cylinder. Yeah, a rod is definitely another possibility.... that or (I sure hope this isn't the case) the tranny is in gear. lol

IHateHacks · 05-25-2007, 12:19 PM

True.

Even with the trans in gear, you will have no problem spinning the crank with a breaker bar. 1st, 2nd, 5th, Reverse, it don't matter. I can actually move my car with it in gear with a breaker bar.

If you can't turn the motor with the starter, you are not going to spin it by hand, I can tell you that much.

We still need more info to even try to guess at whats wrong. Did the motor run up until you took the spark plugs out and threaded the compression tester in? Is that when the motor would not turn? I'm now thinking he dropped something in there like a bolt....

Kuban · 05-26-2007, 03:48 PM

Quote:

Originally Posted by IHateHacks

Wow. What did you do to this engine? Did you drive it and now it won't rotate? Rev the shit out of it with no oil in it racing a Honda?

You definately have catastrophic engine damage on your hands. These are not interferance motors, so you can rule out valves causing this problem. If you can only rotate the motor so far one way and another, then you probably threw a connecting rod. Go look in your haynes manual to see what that is.

A little background on how this car was running before would help. Did it ever run? Or did you get the car like this?

damn negative negative.

Well it COULD be a seize but not necessarily. For all we know hes got the car in gear with the parking break on. Think of the little things "i hate hacks". You gotta remember everyone in here inst a master toyo tech. Fighting compression shouldnt be that difficult. But ya never know, if hes not that strong, a compression stroke could be hard to fight.

supraman121 · 05-26-2007, 08:31 PM

I dont see were he said it was a 5spd or a auto, sounds to me that someone ran it out of oil and the engine seized, there isnt any holes in the block so if it throw a rod then it was done at low rpms, if it a five speed it wont turn over and push it off, get it rolling and pop it into gear, but then again it kind of sounds like its a auto.

And probly if the engine is seized it might just be cheaper to find a lowmilage engine to put in it then rebuilding that one to get it to work.

suprabahamut · 05-26-2007, 11:22 PM

how can you find out if a rod was trown through the engine, and it is a manual transmission

night-rider · 06-10-2007, 09:48 PM

I have the same problem as this guy exept heres the difference, my car was running fine other than i know my head gasket was starting to go but it wasnt overheating or anything i drove my car on my lunch brake a few days ago and then i parked it and i tried starting i after work and it njust clunks so we pulled it into the shop and watched the flywheel as i tried starting it and it will only move about an inch, i also tried turnign the crank by hand and could only move it about an inch , remember the car was running FINE when i parked it and only sat for a couple of hours, what could this be?

05-24-2007, 03:12 AM	#1
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	engine will not rotate before I could even get a compression check the engine will not rotate, first I tried to rotate the crankshaft with a socket wrench and it turned only so far one way and so far the other way so I rotated it counter clock wise till it stoped and tried to start it. it would try to go and just stop at the certain part it stoped at clock wise. what could be wrong? has any one had this problem before and fixed it. and some one mentioned engine seize, what is engine seize and can it be fixed.

05-25-2007, 02:28 AM	#4
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Wow. What did you do to this engine? Did you drive it and now it won't rotate? Rev the shit out of it with no oil in it racing a Honda? You definately have catastrophic engine damage on your hands. These are not interferance motors, so you can rule out valves causing this problem. If you can only rotate the motor so far one way and another, then you probably threw a connecting rod. Go look in your haynes manual to see what that is. A little background on how this car was running before would help. Did it ever run? Or did you get the car like this? Last edited by IHateHacks; 05-25-2007 at 02:30 AM.

05-26-2007, 08:31 PM	#8
supraman121 12psi boost Join Date: Aug 2006 Location: North Carolina Posts: 361	I dont see were he said it was a 5spd or a auto, sounds to me that someone ran it out of oil and the engine seized, there isnt any holes in the block so if it throw a rod then it was done at low rpms, if it a five speed it wont turn over and push it off, get it rolling and pop it into gear, but then again it kind of sounds like its a auto. And probly if the engine is seized it might just be cheaper to find a lowmilage engine to put in it then rebuilding that one to get it to work. __________________ Upgrades- 225/50/R16's Kumho ECSTA AST (KU25) 273 bucks with shipping Magnaflow exhaust NO KAT K&N Air Filter www.myspace.com/coreyjstevens http://vids.myspace.com/index.cfm?fu...oid=1536317037 <------ this one should work check out the accident one aswell ya i might be a "fat kid" but i sure can move fast!~

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05-24-2007, 06:14 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Why are you trying to turn the crank manually for a compression test? Sounds like hell. Pull the spark plugs and check for anything inside the cylinder which could be getting in the way... such as a valve. Have someone using a flashlight watch to see if the pistons are moving while you try to turn the crank. If the crank turns without the plugs in you're just fighting with the compressing air.

05-25-2007, 02:21 AM	#3
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	no I did not try to turn it first, I tried to start it with the spark plugs out and the compression checker in the spark plugs place, but the engine would not rotate or start so I looked in the haynes manual and it said to try and turn the engine with a socket wrench and that is when the engine would only turn so far clock wise and so far counter clock wise. and if it turned over I was going to compression check it, but you said it could be a stuck valve? how would you check it? with a light looking into the spark plug hole and if it is a stuck valve would I have to just remove the valve cover and fix it or the whole head

05-25-2007, 03:16 AM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Don't be so quick to rule out a valve. If a spring snaps the keepers can drop out letting the entire valve drop into the cylinder. Yeah, a rod is definitely another possibility.... that or (I sure hope this isn't the case) the tranny is in gear. lol

05-25-2007, 12:19 PM	#6
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	True. Even with the trans in gear, you will have no problem spinning the crank with a breaker bar. 1st, 2nd, 5th, Reverse, it don't matter. I can actually move my car with it in gear with a breaker bar. If you can't turn the motor with the starter, you are not going to spin it by hand, I can tell you that much. We still need more info to even try to guess at whats wrong. Did the motor run up until you took the spark plugs out and threaded the compression tester in? Is that when the motor would not turn? I'm now thinking he dropped something in there like a bolt....

05-26-2007, 11:22 PM	#9
suprabahamut 3" Exhaust Join Date: May 2007 Location: greensboro Posts: 242	how can you find out if a rod was trown through the engine, and it is a manual transmission

06-10-2007, 09:48 PM	#10
night-rider Stock Join Date: May 2006 Location: grande prairie Posts: 22	I have the same problem as this guy exept heres the difference, my car was running fine other than i know my head gasket was starting to go but it wasnt overheating or anything i drove my car on my lunch brake a few days ago and then i parked it and i tried starting i after work and it njust clunks so we pulled it into the shop and watched the flywheel as i tried starting it and it will only move about an inch, i also tried turnign the crank by hand and could only move it about an inch , remember the car was running FINE when i parked it and only sat for a couple of hours, what could this be?