Engine dead stopped, no cranking at all! (added video clip) - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-01-2006, 07:50 PM   #11
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Dang.

Are you using a 3/8" ratchet? If so, try using a 1/2" breaking bar. You'll get better leverage.
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Old 04-01-2006, 07:55 PM   #12
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Yeah, using 3/8s. I had no other socket that would fit the breaker I had. Even then, I used a long-handled ratchet AND a length of pipe, and still no budge.

I am seriously wracking my brain trying to figure this out. I know rod bearing won't do this, was thinking maybe the oil pump, or something in the timing chain and gears. Or could be the balance shaft? Note that no matter which direction I tried, it would not move at all!!
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Old 04-01-2006, 08:10 PM   #13
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Have you dropped the pan yet? That'* what I would do next. Carefully inspect the oil for metal shavings. Then, take a peak at the bearings/journals.
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Old 04-02-2006, 01:10 PM   #14
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If it was the balance shaft you should get a little movement via the timming which should have a bit of strech... You should have had a little bit of movement.. I think its a rod bearing... You'd be amazed at how they can move out of place when they spin..

Should be easy enough to drop the oil pan and check...

Still sorry to see it happn tho..

No bang, no thud... It just stoped and that was it...

Once I saw the oil pump gears in the timming cover actually split in half.. Strangest thing I eve saw on a 3800... You could pull the cover and have a look.. A bit of a PITA...

Let us know if you find out anything else..

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Old 04-02-2006, 01:33 PM   #15
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Quote:
Originally Posted by sandrock
I get nothing...the only movement happenin was the flexing with the ratchet. Plugs are all out, starter is out of the housing, so there is absolutley no reason why that crankshaft shouldn't give.

I absolutley hate my luck! I'll make a decision soon on whether or not I am going to offer it up for parts.
Well, we can rule out hydro lock.
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Old 04-02-2006, 02:03 PM   #16
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Quote:
Well, we can rule out hydro lock.
After owning a Series II N/A, that'* the FIRST thing I checked for after the battery came back good. Besides, having the plugs out makes it alot easier to turn the motor by hand or by weak starter.

Maybe I should start a poll on who all thinks is making this motor bind up. Hopefully I will find out something later today or tomorrow.

****I wonder....could a rod bearing actually spin itself 90 degrees on the downstroke and by force of the other pistons be driven up the cylinder causing it to lock the motor?*****
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Old 04-02-2006, 02:07 PM   #17
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Quote:
Originally Posted by Mike1995
Quote:
Originally Posted by sandrock
I get nothing...the only movement happenin was the flexing with the ratchet. Plugs are all out, starter is out of the housing, so there is absolutley no reason why that crankshaft shouldn't give.

I absolutley hate my luck! I'll make a decision soon on whether or not I am going to offer it up for parts.
Well, we can rule out hydro lock.
I'm not so sure. If a rod hydrauliced, it may be bent enough to stop rotation.

Sudden stop without related nasty noises from rod bearings is almost always hydraulic lock, in my opinion.

Did you check the cylinders for water, and the coolant bottle and radiator for coolant? How'* the oil look?

This doan sound too pretty good, I'm sorry to say.
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Old 04-02-2006, 02:30 PM   #18
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Quote:
Sudden stop without related nasty noises from rod bearings is almost always hydraulic lock, in my opinion.
Y'know, I made a comment in another post that I was getting a very wretched knocking noise. I ORIGINALLY thought it WAS the rod bearings, but was also leaning towards the harmonic balancer since it was wobbling around. I ordered the balancer, but cancelled it when the motor locked, as it will not do any good on a motor that ain't running. Just for craps and laughs, here is the video clip of it running...there isn't any picture but you won't need it....

http://s81.photobucket.com/albums/j2...t=90770c56.flv
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Old 04-02-2006, 02:38 PM   #19
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Listened to the clip.

that'* not a balancer, it'* a rod bearing. Your sudden stop is due to a rod bearing turning.

Sorry.
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Old 04-02-2006, 02:50 PM   #20
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Quote:
Originally Posted by Bob Dillon
Listened to the clip.

that'* not a balancer, it'* a rod bearing. Your sudden stop is due to a rod bearing turning.

Sorry.
yes that is a spun bearing.....there was 2 other vids on here that made thet exact same noise....
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