crankshaft comes to hard stop near pistion 1 tdc

Asked by Dec 04, 2013 at 07:45 PM about the 1994 Dodge Stealth 2 Dr STD Hatchback

Question type: Maintenance & Repair

94 Stealth SOHC. Started the car the other day and it sounded like a piston/valve
interference issue.  Rotated the crankshaft manually and it comes to a hard stop  near
TDC of #1 postion,.  Pulled the distributor cap and it rotates as expected, pointing
toward the #1 cylinder with the crankshaft in the locked position.   Checked the timing
belt  and the cams and crankshaft marks line up OK..  Pulled the front valve cover; no
broken cam, no broken valve springs.  Before I pull the other valve cover, thought
maybe you could offer some suggestions.

14 Answers

did you inspect the distributor cap for cracks?

Thanks for your reply. As soon as I heard the noise after I started the engine, I turned it off. When I was trying to figure out the problem, I had the distributer cap off. The hard stop I'm referring to more like a mechanical interferrence issue---like possibly a cylinder hitting a valve.

5,885

sounds like you broke a rod to me, the SOHC is a non interference motor so should be no valve train issues,, so that leads me to think that you broke a rod, is there a clank when it stops rotating? drop the oil pan and you'll be able to see whats really goin on in there,, like manually/physically wiggle the rods and even shine a light up there and you should be able to see if the rods or anything is broken and/or in the way.. let us know what you find though,, DO NOT attempt to start the car again til you get the issue sorted out though

1 out of 1 people think this is helpful.

Thanks for the info. Good to know that the SOHC is a noninterference valve/piston engine. That rules out a couple issues.

5,885

well yeh but if its a rod you might just gouged the cylinder walls and chances are if that happened you wont be able to save the block, where as if it were the valve train you could just get some new valves (valve job)

5,885

so am i correct in the way that i understand this that you cant get the engine to turn over/rotate past that no1 position? it gets there and just slams stopped?

5,885

oh and possible crank and other bad things i forgot to mention with the broken piston rod scenario

1 out of 1 people think this is helpful.
5,885

so did you ever find out what happened? interested to know

No. I haven't pulled the pan yet. My best guess at the moment is a connecting rod issue. Thanks for your inputs

5,885

yeh that's what im thinking it is,, well keep me in the loop im interested

Best Answer

removed the tming belt. Both cams rotate as expected. Pulled the pan. No signs of rod or bearing issues. I replaced the clutch not to long ago. I wondering if I should slide the tranny back and have a look -see at the clutch-pressure plate.

5,885

well you could have someone turn the crank while you watch from underneath and see what's going on in there,, remove the plugs so there's no compression,, and if you still cant see what's binding it then I guess do like you said with the transmission

5,885

oh btw incase you didn't know, but you should position the cams to a position that the valves wont get hurt before you turn that crank with no timing belt on

5,885

ever figure out whats going on or wrong?

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