How can I turn the Engine over without it starting?

[DBurdett]

My 2006 truck has been in the garage for some months now. (I only use it for towing my travel trailer). I would like to turn the engine over to circulate the oil and spread some oil around, before the engine actually starts. I know that cold starts on a dry engine can produce a lot of wear. Is there a fuse I can pull that will prevent either the injectors from firing or the fuel pump from running.



Any other suggestions for starting an engine after it has been sitting for three months. I have kept the batteries fully charge.



Thanks!

 

[JJPage]

You could unplug your injector harness!

 

[WCounts]

You could unplug your injector harness!

That would work ok but you will have codes. I would crank the truck up and drive it long enough to fully warm up every week.

 

[jwilliams3]

Cranking over the engine without letting the injectors fire will hurt the rail relief valve over time.

 

[cerberusiam]

My 2006 truck has been in the garage for some months now. (I only use it for towing my travel trailer). I would like to turn the engine over to circulate the oil and spread some oil around, before the engine actually starts. I know that cold starts on a dry engine can produce a lot of wear. Is there a fuse I can pull that will prevent either the injectors from firing or the fuel pump from running.



Any other suggestions for starting an engine after it has been sitting for three months. I have kept the batteries fully charge.



Thanks!

Just start it up and make sure your oil pressure comes up after a couple of seconds. Unless you get to the oil pump to do a pre-oil anything you do will be worse than just starting it and letting it idle.

 

[dan.poitras]

Pull the ECM fuse

 

[tkerrigan]

Unplug the tone ring sensor, just behind the harmonic balancer.

 

[Vaughn MacKenzie]

Cummins does suggest cranking the engine without firing to circulate oil if it's sat a long time, ie over 3 weeks. On the 2nd Gen trucks you could do this by pulling Fuse 9 on the panel in the cab, don't recall what is was labelled though. Might check to see if F9 does the same thing on your '06.

 

[betterthanstock]

Any other suggestions for starting an engine after it has been sitting for three months. I have kept the batteries fully charge.



Thanks!

Use synthetic oil. It sticks to parts a lot longer than mineral.



For now, it would help if you would remove the air inlet rubber coupling right at the engine and spray a little oil into the inlet as you crank it, and even a little oil once it starts (to lubricate the cylinders). Don't spray oil into the turbo/intercooler. Be careful if the oil spray contains propane, it will rev up the engine, and may backfire on you!



Drain your water from fuel filter, may even need a new filter. If you leave fuel filter empty, it will take some cranking to get it started.

 

[Vaughn MacKenzie]

Use synthetic oil. It sticks to parts a lot longer than mineral.

For now, it would help if you would remove the air inlet rubber coupling right at the engine and spray a little oil into the inlet as you crank it, and even a little oil once it starts (to lubricate the cylinders).

betterthanstock I don't think that is a good idea. . . the oil will light off like diesel fuel the moment the engine compresses it, potentially with destructive consequences. I saw someone squirt some "spray lube" in the intake of a 6. 2L while cranking and it violently clattered to life.

Vaughn

 

[LHarper]

On 06 trucks the wire leading to the starter is on the left side of the firewall

, yellow 14 ga. with a connector . unplug the connector & supply 12volts

to the starter side . make sure truck is out of gear or in park , key off .

 

[betterthanstock]

betterthanstock I don't think that is a good idea. . . the oil will light off like diesel fuel the moment the engine compresses it, potentially with destructive consequences. I saw someone squirt some "spray lube" in the intake of a 6. 2L while cranking and it violently clattered to life.



Vaughn

I bet it was the propane propellant in the can, not the oil that ignited. That's why I cautioned against something with propane. In a cold engine, you have trouble igniting atomised diesel. I would not worry about igniting a few drops of oil that have coated the cylinder wall. Everything is cold, and it will only slowly burn off once the engine has started. It's also much tougher to get the oil on the cylinder, than it would be with a flat top gasser piston, so yeah, you will just have more wear on a stored diesel started the first time with dry cylinder walls. The best way, if it has really sat a long time, is to take out the injectors, spray oil, turn it over, and put injectors back in. Not an easy task on a common rail. Second best would be to use a CO2propelled motor oil mist sprayed into a cold engine. Grid heaters should be off. You could spray it with additional CO2, nitrogen, or some other inert gas, and it would not start.

 

[mconstable]

If you can't get it pre-oiled... I wonder if it would help to plug it in overnight, and maybe even slap a space-heater or flood lamp hitting the oil pan to get the oil nice and warm so it'll flow quicker??

 

[05mxdiesel]

Here's something might help with your situation. Install a fumoto drain valve on the oil pan. When you are ready to fire the truck up, drain some oil into a clean container and pour it back into the top of the motor. This should get most of the engine parts wet with oil.