Question about Caterpillar 3406 Engine

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Why would the engine oil be getting hot enough to set off low oil /shutdown

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  • Terry McCarthy
    Terry McCarthy May 06, 2014

    this is in a kenworth tractor

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1. check and wash rediator

2. check thermostat valve working properly

3. check valve tiiming and fuel consumtion
4. otherwise engine needs complete bore

Posted on May 09, 2014

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Posted on Jan 02, 2017

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1 Answer

If 03 Tiburon over heets will it have trouble cranking


Depends on why it overheated. If it's dangerously low on coolant, your car may have a sensor that will shut the car off. It's a safety feature to keep you from damaging your engine. l'm sure it also has one for low oil pressure. If it overheated recently, it may not crank. If you have a temperature sensor, it may not be cooled off enough to start it safely. Make absolutely certain you've got enough coolant and the right mixture in your radiator/cooling system, and make sure the oil level is full. Low oil can also cause your engine to run hot.

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L2050 kubota tractor after engine gets hot if i shutdown it will not crank over after cool down starts back up.


Nest time it is hot and does not start, check for spark. U could have a thermal issue where the ignition coil gets hot and stops working till it cools down.

U mentioned glow plugs - is this a diesel powered unit? Check for proper oil level in unit? Oil pump? Poor lubrication will cause an engine to expand when hot and not restart till it cools down.

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It certainly could.
Also, at that age, the bearings and clearances could be getting slack so oil pressure would be expected to get lower.
If oil pressure is high when engine is cold, and low at idle when engine is hot, and high at higher RPM with hot engine, then it's more likely engine wear than bad oil pump.
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Tha tapping sound just started then it started to stall when i would stop for a few days. But i got nervous and got the car inspected and now I'm scared of the thing.


First thing I would check is the coolant and engine oil to make sure they are full. If the coolant is low it could have been overheating the engine. This could cause the engine to bind and stall if it gets hot enough. If it was shut off in time it might start and run fine until it gets too hot again. Also if the oil is too low it can cause the hydraulic lifters in the engine to not work properly and they will make a ticking sound. worst case if ran with low oil long enough it could cause bearing failure and create a knocking sound.

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1998 dodge dakota overheated was ran hot lost all power an shutdown


When an engine gets hot, you must shut it off before it gets so hot that it begins to lose power. Sometimes this simply can't be done safely. Once the engine gets so hot that it shuts down, permanent damage may have be done. Bearing can gall, piston rings can break, piston crowns melt, but usually the oil breaks down and the main damage is to bearings and perhaps the crankshaft. Diagnostics would include changing the oil, attaching a good mechanical oil pressure gauge then spin the engine with the spark plugs removed to see how bad the damage is. If oil pressure is adequate, run a compression test. This should give you enough information to decide if the engine can be saved without a major overhaul. Low compression can mean blown head gaskets, warpped heads, broken piston rings, warpped valves, etc.

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I would let it cool completely and see if it starts again. There are no specific timers that say after detecting a low oil shutdown don't start for X amount of time. It is more than likely a choke setting as it is hot, and you may now have flooded it.

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1 Answer

Hi there.i have a problem with my bike.when the tempeture are come to 107 celcius,the bike suddenly engine shutdown.but if i drive straight without stop,the engine ok.please help me...


overheating is made worse when not getting moving air. Also if it got hot enough to stall the oil needs replacing too. make sure cooling system is clean and doing all it can (full of coolant) and the fan runs when hot enough to need it.There is a fan relay test it.

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1 Answer

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Ouch. This one doesn't sound good Adrienne. Sorry. No automatic shutdown for low oil unfortunately. 1.25 qt of oil isn't enough. Sure sounds like a seized engine.

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possibly faulty...worn,get checked out, not really old enough to be noisy..oil not too thin or low,temp not too hot,either weather or engine temp too high(hot),engine hasnt got hot in the past,does it get plenty of revs ??? all could be causes maybe replace them ,not worn camshaft ..engine runs O.K?

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Hi Mark,

The engines used on the Powermates have a low oil shutdown system that can be troublesome. Try this:

1 - Make sure there is enough oil in the crankcase. The oli level needs to be all the way up to the bottom of the threads in the oil fill hole.

2 - Still no spark? Replace the spark plug with a new one (properly gapped), then spray something like brake cleaner into the carb. Pull the rope and see if you hear any detonations from the engine. If the engine tries to start but won't you need to look at the fuel system, then the ignition.

3 - If you proved there isn't any spark happening, look under the plastic cover where the kill switch is located. You'll find a small metal box with wires coming out of it. Find the wire that goes from the box to the kill switch and disconnect it at the switch. Mark things as needed so that you'll remember where to put them back. Give the rope a gentle pull and see if we have a working ignition, if it does have spark there is something wrong in the low oil shutdown mechanism.

4 - If you've convinced yourself that the low oil shutdown is misbehaving try changing this oil and flushing out the crankcase. Look for any evidence of debris that would have made the oil level float bind. As a final test reconnect the wire we took off the switch and disconnect the one that goes from the module to the oil sensor on the side of the engine, if you don't get a spark with the sonsor disconnected you probably have a bad module.

5 - If we didn't get ignition with the low oil shutdown disconnected from the kill switch, reconnect the wire we took off and then disconnect the (usually black) wire that leads down inside the engine. This is the kill wire for the ignition module. If you get the engine to start with this wore disconnected you may have a shorted kill switch, test it with an ohm meter.

6 - if there still isn't a spark with the kill wire disconnected you may have a bad ignition module. You have to take off the carb, then the blower housing to get to it. Check that the kill wire isn't shorted to the block anywhere, and that the module has the proper gap and orientation before replacing it, The modules say "cyl side" on the side that should face into the engine. A regular business card or a playing card ought to just fit between the magnet on the flywheel and the module, too loose would cause a loss of ignition. You get extra points if you use a feeler guage to set the gap to 0.010 inches.

7 - Ignition modules are available from a bunch of different places, your local Briggs supplier will want to know the model, type, and code numbers located on the side of the valve cover in order to be sure which parts you need,

Rate me if you liked the answer,
Carl

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