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Old 04-18-2012, 08:11 PM   #1
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Default Engine won't crank by hand! Stuck

So my engines been sitting for a while and hasn't been turned on. I removed the plugs and began cranking it by hand right after I poured some fresh oil in there. I was able to crank it half a rotation then it gets stuck. I emptied a can of on blaster down the plug holes to the cylinder/piston but it still won't budge. Any advice is appreciated!
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Old 04-18-2012, 08:12 PM   #2
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pb blaster*
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Old 04-18-2012, 08:19 PM   #3
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How long is " a while"?

3 months or 3 years?

How was the engine stored?

Is this the one in the car? or one sitting on the shop floor?
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Old 04-18-2012, 08:36 PM   #4
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No it's been a few years, and the engine is in the car.
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Old 04-18-2012, 08:43 PM   #5
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Have you shined a light down the spark plug hole and checked for rust in the bore?

Pull the VC and see if you have a valve stuck in the guide, hung open.

Maybe with some luck that is all it is.
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Old 04-18-2012, 08:50 PM   #6
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I've got the vc off, all the valves look ok. I looked down the plug holes but can't really see the cylinder walls since the holes so small.
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Old 04-18-2012, 09:06 PM   #7
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Within the range of crank motion you have, rotate the crank, and watch the movement of the valve lash buckets and make sure they move freely.
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Old 04-19-2012, 02:50 AM   #8
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Use the starter? Seriously, if it doesn't move with a couple clicks of the starter, it's fucked. So it's either fucked or it'll break it free. A little oil won't help unless it turns.
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Old 04-19-2012, 11:36 AM   #9
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crazy idea: turn crank all the way one way and pour a half-shot of sea foam down the spark plug holes and wait 15 minutes. then rotate crank the other way and wait 15 mins and try turning again.
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Old 04-19-2012, 03:19 PM   #10
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I don't see sea foam being more effective than PB blaster (penetrating oil). But i'll give it a try i'm getting desperate at this point :(
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Old 04-19-2012, 03:32 PM   #11
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Quote:
Originally Posted by BogusSVO View Post
Have you shined a light down the spark plug hole and checked for rust in the bore?

Pull the VC and see if you have a valve stuck in the guide, hung open.

Maybe with some luck that is all it is.
Non-Interference engine
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Old 04-19-2012, 07:01 PM   #12
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Put a breaker bar on it and either stand on it or smack it with a large rubber mallet. Either it breaks free, and you can slavage it, ot the rings are rusted to the cylinders, and it needs to be machined.
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