Solved - Urgently Need Engine Barring Tool - Medford, OR

[DerekZ]

2006, Ram 2500, 5.9L, G56
Stuck halfway through a trip in Gold Hill, near Medford Oregon.
Does anyone in reasonable distance have an Engine Barring Tool to loan for a short time?
I can borrow a vehicle to get to you.

Need to replace a Fuel Injector Solenoid. Have tools, but not all the right ones; so bought a cheapo barring tool via amazon prime. Although the paperwork states that it's for the 5.9L, it does not fit the bore in the bellhousing. the thing is much larger than the one I got from Geno's that sits at home.

I'm wearing myself out trying to turn the engine over with a 15mm socket on the damper bolts. Minimal clearance for snaking a ratchet past the fan shroud, and can't see the bolts. Only have 6pt socket to use, so it's many unsuccessful tries to apply the socket and then little to gain before it slips off. Had to take a break from it.

 

[sag2]

Why are you trying to turn the engine over? If you just remove the rocker stand the valve adjustment should be close enough. If you really need to, try using the generator nut. You may have to rotate it backwards so the belt does not slip.

 

[DerekZ]

Taking the cylinder to TDC to relieve the valve springs so as to remove the rocker pedestal, per the SM.

There is no hex nut on the alternator pulley. Can't see it, but it is perhaps some internal wrenching type.
I heard it was supposed to be 24mm hex; but I've got up to only 21mm available, so no go anyway.

 

[DerekZ]

Thanks to all who viewed and/or replied.

I found a 15mm-12pt socket that made it much easier to turn the engine over.

Solenoid is out and the new one going in.

 

[sag2]

If that is all you were doing you can bump it over with the starter. Glad you got it.

 

[DerekZ]

Yes, another idea, but working alone, in-and-out of the truck, bumping with the starter is a hassle.

 

[BigPapa]

For future reference, there is a nut on the alternator. I’ve never had a problem turning my engine over using it. As mentioned it does turn the engine backwards. MUCH easier than using the damper bolts and you can watch the valves while doing it.

-Scott

 

[petersonj]

For future reference, there is a nut on the alternator.

Not necessarily so, starting around 2006 an alternator de-coupling pulley (one-way clutch) has been introduced and the solid pulley no longer exists.

- John

 

[BigPapa]

Well, I learn something new every day.

Thanks.

-Scott

 

[seafish]

Not necessarily so, starting around 2006 an alternator de-coupling pulley (one-way clutch) has been introduced and the solid pulley no longer exists.

- John

Yup...also called an "over-running pully".


The design changed to help prevent the serpentine belt from being thrown off the pully(s) due to the massive torque of the Cummins stopping the crankshaft so abruptly but the belt wanting to keep turning. The overrunning pulley allows the belt to give up just a bit of slack instead of jumping a groove. When my 2005 threw a belt under extended warranty, they also put the upgraded pulley on the alternator.

 

[petersonj]

The design changed to help prevent the serpentine belt from being thrown off the pully(s) due to the massive torque of the Cummins stopping the crankshaft so abruptly but the belt wanting to keep turning.

Actually, it is the alternator's solid pulley being driven by a spinning field rotor that wants to keep the pulley turning, not the belt - the belt stops easily when the engine is shut off. With an idling engine, the field rotor in the alternator is spinning about 2600 rpm (a little over 3 times the engine rpm). When the engine is shut off, the electrical load on the alternator is also shut off and the heavy rotating mass of the field rotor wants to continue spinning at 2600 rpm.

The heavy mass of the field rotor in an alternator with a solid pulley will try to continue spinning, even when the belt has stopped. This leads to the chirp sound or the possible derailing of the serpentine belt when the engine is shut off.

The alternator with an "overrunning clutch" feature in the alternator pulley allows for the heavy mass of the field rotor to coast to a stop, and allows the serpentine belt to instantly stop the alternator pulley when the engine is shut off. No belt squeak and no belt derailment.

@seafish, we are probably saying the same thing, just using different words.

In the late 90's the Chrysler and Dodge min-vans with the long stroke 4 cylinder engines had the "overrunning clutch" feature on the alternator pulleys.

The long stroke of an idling 4 cylinder engine caused pulses that momentarily accelerated and decelerated the serpentine belt and started a tug of war when interacting with the heavy rotating mass of the alternator's field rotor with a solid pulley. This pulsing energy caused wild fluctuations of the belt and tensioner pulley. An "overrunning clutch pulley" made the belt and tensioner pulley run very smoothly at idle.

- John

 

[seafish]

^^^ That makes MUCH more sense...thanks for clarifying what I was trying to say!!!

 

[cerberusiam]

Solenoid is out and the new one going in.

What you had better do is get a new injectors to put in there ASAP before you have to rebuild the complete engine, or worse source another one.