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Re: engine siezed, any thoughts on why [Re: 6PakBee] #2161315
09/25/16 12:33 PM
09/25/16 12:33 PM
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Lincoln Nebraska
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RapidRobert Offline OP
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He said it might be a month till he can get back on it (wife/kids/job, the usual unimportant life distractions). I'm gonna call & leave him a msg & I will ask him if he will try & turn it, that'd only take 3 minutes. EDIT we talked & he had already retried the breaker bar when it cooled & it is still locked up as tight as a drum

Last edited by RapidRobert; 09/26/16 02:26 PM. Reason: more info

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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2162083
09/26/16 03:23 PM
09/26/16 03:23 PM
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dogdays Offline
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Rod bearing. You'll see when he opens it up. That's my "Fearless Prediction".

R.

Re: engine siezed, any thoughts on why [Re: dogdays] #2162139
09/26/16 05:00 PM
09/26/16 05:00 PM
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Lincoln Nebraska
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RapidRobert Offline OP
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Dog, noted!. He said he likely wont have time to get back on it till Nov but for sure I will post the outcome.


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2162324
09/26/16 09:00 PM
09/26/16 09:00 PM
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New York
R/T1968R/T Offline
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If I were a betting man I would say something to do with the pistons. Either wall clearance or wrist pins.

Re: engine siezed, any thoughts on why [Re: R/T1968R/T] #2162350
09/26/16 09:37 PM
09/26/16 09:37 PM
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RapidRobert Offline OP
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I spoke with him last night & he has a week off straight in early Nov & likely he will be on it hot and heavy but right now he sure ain't a happy man


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2162369
09/26/16 10:02 PM
09/26/16 10:02 PM
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Northern Calyfornua
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Sxrxrnr Offline
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Any sign of coolant in oil? Remove spark plugs and attempt to turn engine,,,yes I am thinking about hydrolock. Remote chance, worth a thought. Although doubt that engine would merely slow before seizing. Still like tight mains, but thoughts on tight pistons and pins and rod bearings are too worthy. Broken rod. Any oil in the engine?

Boroscope thru oil pan drain hole. Any metal in filter or oil?

Will engine turn backward with socket on breaker bar or prying flywheel teeth.

I assume transmission is in neutral or clutch is in if manual. Naw,,,if slowdown was detected before stall.

Dropped a valve?

Starter not locked to flywheel teeth?

Throwing sh*t against wall to see what might stick.

Just lying here, listening to Mark Levine and chewing my cud waiting for the debate.


Last edited by Sxrxrnr; 09/26/16 10:08 PM.
Re: engine siezed, any thoughts on why [Re: RapidRobert] #2162389
09/26/16 10:25 PM
09/26/16 10:25 PM
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Downtown Roebuck Ont
Twostick Offline
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This happened in the car? Any chance the front pump piled up?

Kevin

Re: engine siezed, any thoughts on why [Re: Sxrxrnr] #2162537
09/27/16 02:33 AM
09/27/16 02:33 AM
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RapidRobert Offline OP
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I called him last night at work & he picked up & we talked for a spell. he drained the oil & said it looked OK, he cut open the filter & said there was some "fine" metallic particles, nothing disturbing. when I was there he turned the crank CW & it was stuck. On the phone he said that he had already retried to turn it when it was cold & used a longer extension on the breaker bar & it was still stuck solid (I'm assuming he went CW). it is installed in the car all buttoned up & ready to go just needing the breakin. its an auto (not sure if it was a 904 or a 727). he was thinking it might be a trans front pump issue, but I told him that I did not think it was that. I offered my borescope that is over at racing partners shop for him to use. I told him that just me I would just go ahead & pull the heads and intake/pistons/rods but I think he wants to see what the borescope shows & possibly any pherifical (sp) issues such as the trans before completely tearing into it


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2162578
09/27/16 04:39 AM
09/27/16 04:39 AM
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Northern Calyfornua
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Cam bearing seize up cam if incorrectly replaced on rebuild. Will breaker bar on engine allow any rocking movement at all resulting from timing chain slop?

On big block, removing pan really fast,,,,if not all gooped with silicone sealer. I understand that small block can be a bit more challenging. Easier than removing heads.

Borescoping could explain enough to suggest if to remove heads or pan first.

Re: engine siezed, any thoughts on why [Re: Sxrxrnr] #2162753
09/27/16 01:03 PM
09/27/16 01:03 PM
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Lincoln Nebraska
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RapidRobert Offline OP
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Quote:
Will breaker bar on engine allow any rocking movement at all resulting from timing chain slop?
tight the first time & he put an extension on it the 2nd time (when cooled) & still unbudgeable. I queried him a bit on the ring gaps and who did the machining etc and he put it together by himself so I dont have much knowledge on anything other than what happened on the breakin. I think for now it's dead in the water till he can get to it. if he makes it over sometime to borrow the scope then something may show up on the cyl walls. For sure with all the interest I will post the outcome when the time comes


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163116
09/27/16 09:04 PM
09/27/16 09:04 PM
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West Plains, MO
DrCharles Offline
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I'm betting on pistons seized to cylinder walls, sorry frowwn

The rapidly rising water temps, then more throttle to keep it running, then a quick seize, sure sounds like pistons melting to the bores...
It could be main bearings too but either way it's probably going to have to come back out eyes

Definitely interesting to see the teardown results. Now I'm even more nervous since I'll be firing up my new 451 as soon as the cam/lifters get back from the grinder! work

Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163123
09/27/16 09:20 PM
09/27/16 09:20 PM
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Round Lake Beach, Illinoisy
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You sure it is the engine that locked? I had a torque converter do that and the engine would not turn until I disconnected the trans then it turned fine... work


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Re: engine siezed, any thoughts on why [Re: Rhinodart] #2163307
09/28/16 12:31 AM
09/28/16 12:31 AM
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Lincoln Nebraska
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RapidRobert Offline OP
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He was thinking torque converter/pump/trans issue & wanted to seperate em. I told him that he would not be able to get to the 4 small bolts to free it. I'm gonna get back at him in a week & see if there is any new developments


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163311
09/28/16 12:36 AM
09/28/16 12:36 AM
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Sacramento CA
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Originally Posted By RapidRobert
He was thinking torque converter/pump/trans issue & wanted to seperate em. I told him that he would not be able to get to the 4 small bolts to free it. I'm gonna get back at him in a week & see if there is any new developments


yes that would be a challenge

Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163320
09/28/16 12:44 AM
09/28/16 12:44 AM
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Downtown Roebuck Ont
Twostick Offline
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No challenge, just unbolt the trans and pull it off the converter.

If you can't get it to separate, you just found your problem.

If it does separate without a fight I vote for a piston stuck from too little clearance.

Kevin

Re: engine siezed, any thoughts on why [Re: Twostick] #2163323
09/28/16 12:46 AM
09/28/16 12:46 AM
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Originally Posted By Twostick
No challenge, just unbolt the trans and pull it off the converter.
Alright, I will pass it on


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Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163450
09/28/16 04:56 AM
09/28/16 04:56 AM
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Bend,OR USA
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No need to unbolt the trans, remove the dust cover and then the four converter bolts and see if the starter spins the converter or not twocents If it won't turn enough by the crankshaft to remove those bolts you may need to remove the tranny to be able remove them shruggy If it won't turn over it is probally the tranny or converter, if it spins the converter try rotating the motor with a socket on the balancer bolt and see if it will turn or not either way, in fact do that first up

Last edited by Cab_Burge; 09/29/16 03:04 AM.

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Re: engine siezed, any thoughts on why [Re: Cab_Burge] #2163488
09/28/16 09:37 AM
09/28/16 09:37 AM
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Colleyville
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Originally Posted By Cab_Burge
remove the dust cover and then the four converter bolts


I'll pay admission to see that. drinking

Robert


'68 Fury Convertible
'69 300 Convertible
'15 Durango 5.7 Hemi
'16 300 S Hemi
Re: engine siezed, any thoughts on why [Re: RapidRobert] #2163491
09/28/16 09:44 AM
09/28/16 09:44 AM
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MI, usa
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Converter bolt wedged at the back of the block. Been there.
Doug

Re: engine siezed, any thoughts on why [Re: Cab_Burge] #2163593
09/28/16 12:32 PM
09/28/16 12:32 PM
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W. Kentucky
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Originally Posted By Cab_Burge
No need to unbolt the trans, remove the dust cover and then the four converter bolts and see if the starter spins the converter or not twocents


Cab, I can see him getting to two bolts if he's lucky. With the engine or whatever is stuck how would he get to the others?

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