EMD 645 engine with non EMD parts inside.

The pictures on the link show an EMD 645 engine with non-EMD parts inside.
The engine was earlyer as a test fitted with a non-EMD turbocharger but faild to reach the NOx-limits.
Now the turbocharger is up for sale.
Usualy, are the non-EMD parts of an inferior quality?
Are the starting motors on the picture also of non EMD make?
How many volts are usualy used for such starting motors?

http://f15.parsimony.net/forum25608/messages/658039.htm

On locomotives the voltage is normally 65 volt (74 volt charing voltage) but on a test stand any type of starter motors can be used. the engine other than for fuel pump does not need a power source.

The starters are Delco heavy duty starters similar to what is used on large trucks. Probably a 42MT or 50 MT type model. I am curious to know what the actual input voltage to the starter is on these. I have never seen one that took more than 24 volts.

junction tower wrote:The starters are Delco heavy duty starters similar to what is used on large trucks. Probably a 42MT or 50 MT type model. I am curious to know what the actual input voltage to the starter is on these. I have never seen one that took more than 24 volts.

the starters are 32vdc wired in series with each other. the model i can't remember, but 42mt sounds right

Usualy, are the non-EMD parts of an inferior quality?

the non emd rebuild parts are usually pretty crappy in quality. the GE remanufactured emd parts are top notch stuff, and most of the engines we have that are upgraded for emissions [tier 0] are all GE reman parts, and that is all we are allowed to put in them

The name plate shows that the turbo is Globe.
Globe turbochargers are widely used on EMD locomotives with good result.
(some sources mentioned it as on of EMD OEMs along with Elliot )

Non EMD parts are generally cheaper but according to our experience:
1. If you are going to buy NON genuine parts, check if the supplier can offer components rather than parts. (e.g. complete powerpack, turbocharger,...). supplier who can offer complete components are much professional and reliable.
2. Check if the parts comply with OEM standards. (a little hard but viable)
3. Ask the seller to provide you a list of buyers and their testimonials if any.
4. Take care about the origin of parts. (You can find that presently most of available non genuine parts in Europe have origins in south Asia. At previous the source of non genuine EMD parts was mainly Mexico or south America who have a better reputation.)

DutchRailnut wrote:On locomotives the voltage is normally 65 volt (74 volt charing voltage) but on a test stand any type of starter motors can be used. the engine other than for fuel pump does not need a power source.

You may want to run the Turbo lube pump B4 cranking the engine on the turbo units. The bearings will appreciate that...

ExEMDLOCOTester wrote:[You may want to run the Turbo lube pump B4 cranking the engine on the turbo units. The bearings will appreciate that...

Doesn't the turbo lube pump run after engine shutdown for a timed period on an EMD? Isn't the lubrication supplied during this period sufficient enough to take care of the turbo bearings during start=up? Of course if we're talking about a lenghty shutdown doesn't EMD recommend pre-lube for the main bearing /piston cooling system?

May all you're bearings be oily ones!

Doesn't the turbo lube pump run automatically on an EMD when the unit is set up for starting?

The standard turbocharged engine control arrangement is supposed to pick up the turbocharger "soak back" pump to lubricate the turbocharger bearings before and during starting. The rotating assembly in the EMD turbocharger is supported by hydrodynamic bearings. These bearings do not last very long with air as the lubricant. If the pump does not function, a bearing failure usually develops rather quickly. The speed multiplication by the gear train (varies with model, most are around 18X engine crankshaft speed) results in a turbocharger speed between 4600 and 5400 RPM (depending on the idle speed used in the particular application) when the EMD diesel engine is idling.

Nelson Bay wrote:

ExEMDLOCOTester wrote:[You may want to run the Turbo lube pump B4 cranking the engine on the turbo units. The bearings will appreciate that...

Doesn't the turbo lube pump run after engine shutdown for a timed period on an EMD? Isn't the lubrication supplied during this period sufficient enough to take care of the turbo bearings during start=up? Of course if we're talking about a lenghty shutdown doesn't EMD recommend pre-lube for the main bearing /piston cooling system?

May all you're bearings be oily ones!

Doesn't the turbo lube pump run automatically on an EMD when the unit is set up for starting?

The Turbo Lube pump starts as soon as the Fuel prime contacts are closed and when the NVR relay opens. Default setting for the Turbo lube pump timed relay is 45 minutes, and the circuit breaker is ahead of the battery switch.

bengt wrote:
The pictures on the link show an EMD 645 engine with non-EMD parts inside.
The engine was earlyer as a test fitted with a non-EMD turbocharger but faild to reach the NOx-limits.
Now the turbocharger is up for sale.
Usualy, are the non-EMD parts of an inferior quality?
Are the starting motors on the picture also of non EMD make?
How many volts are usualy used for such starting motors?

http://f15.parsimony.net/forum25608/messages/658039.htm

Everything in the pics looks pretty standard. Pic #1 is a 12 cyl 645 Roots Blower (normally asperated), Pic #2, two 32 VDC Delco style series connected starters and Pic #3,4,5 a globe turbo....