Has anyone ever had their engine lock up on them?

I've had a tranny lock up in a ford once, blew the u-joint at 70 mph on interstate. If you are pushing 83 lbs. of boost the whole drivetrain is getting alot of stress.
 
drop a valve? i was driving a fl60 with a 5.9 12v valve spring broke valve droped small peck but got bad real quick. sweeled piston bad enough to bust the bore. yours may have done this and just locked er up. mine was on the #6
 
Thats sucks.
I think that you droped a vavle and it bounhed around and with each hit to the piston the piston expanded until it locked up.
 
Both 5 and 6 will be scored up very badly, rings stuck or welded to the ring lands. But my moneys on #6 being the one thats stuck and holding her tight. Main and rod bearings will prob. look like new. Go back with 14mm TRL slugs.
Ryan
 
Texas Cowboy said:
Piston oil nozzle clogged????
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This is kinda what me and sum of my buddies are thinkin.
What ever it is.... she dont even try to budge. Starter is no match for a locked engine. LOL.

By the way yall thinkin tranny, dont think so cuz why would the tranny and clutch lock up all at the same time? Remember the clutch being pushed in to try to start it would eliminate everything from flywheel back.

Lance
 
I still say find a barring tool and give that a shot...you should be able to tell pretty quick how bad she's stuck

Chris
 
Piston oil cooling nozzle! Same thing happeneed while in Texas picking up trailers in a 94 12v. Not a good day Im from Indiana and it happened outside Texarkana.
 
I locked mine up back in December. #5 melted down pretty bad, when it did some of the melted piston went out the exhaust and cooled on contact causing the valve to stay open slightly. When the piston came back up it ran into the valve and came to a complete stop. The piston itself was free in the cylinder, but the valve was holding it up.
 
BigBadDodge said:
Ditto, stuck a piston :(


Good luck getting it back up and running


BBD
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x Whatever on a stuck piston.

I seriously doubt it has anything to do with oil pressure/flow and bearings. In my experience you will probably lose a turbo before you would lose a rod or main bearing.

Do the "piston oil cooling nozzles" just cool the underside of the piston crown or do they actually lube the cylinder walls? If it is just cooling the crown I don't think that is your problem either.
 
mondtster said:
x Whatever on a stuck piston.

I seriously doubt it has anything to do with oil pressure/flow and bearings. In my experience you will probably lose a turbo before you would lose a rod or main bearing.

Do the "piston oil cooling nozzles" just cool the underside of the piston crown or do they actually lube the cylinder walls? If it is just cooling the crown I don't think that is your problem either.
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If said nozzle is clogged with debris that piston swells up nice from lack of cooling. Ever cut a stocker cummins piston? You will see a neat oil passage$.02
 
RacinDuallie said:
If said nozzle is clogged with debris that piston swells up nice from lack of cooling. Ever cut a stocker cummins piston? You will see a neat oil passage$.02
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Nope, I haven't had an opportunity to go through a B series cummins shortblock yet. It probably shows with a question like that huh?

I just based that question on what I have seen from other motors with piston cooling nozzles.
 
I've got a couple 12V motors sitting on pallets taking up room in the shop...ready to ship if you need one ;)
 
I'm guessing a pressure plate bolt or bellhousing bolt fell out and is wedged againist the flywheel. Any white smoke out of the exhaust?
 
Schevyii63 said:
I'm guessing a pressure plate bolt or bellhousing bolt fell out and is wedged againist the flywheel. Any white smoke out of the exhaust?
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Kinda what I was thinking earlier. Bellhousing adapter bolt backed out & wedged between flywheel & adapter. But more than likely the stuck piston scenario
 
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