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fernweh
Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
| RE: Clocked?
DUTCH - 12/8/2008 3:47 PM
For a dummy, what does "clocked" mean?
Dutch, it means that the back of the alternator with its electrical connections is correctly indexed to the housing/mounting holes.......
Rusty, my parts supplier could not reference the Bosch part number from the "new VR" unit - none of his Bosch wholesalers woulkd find that part number.
So we called Wagner Alternator ( a different Wagner from that which supplies brake and hydraulic parts) and had to go through an distributor and placed an order for the last VR wagner had in stock.
I hope we now get the right VR for the spare/loaner G-500 alternator.
Thanks again for your " get down to the facts" 
Karl |
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hipine
Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
| RE: Clocked?
DUTCH - 12/8/2008 4:47 PM
For a dummy, what does "clocked" mean?
"clocking" might be generally stated as "angular relationship of two parts on the same axis" - as in the two hands of a clock.
In this case we're talking about the angular relationship between the front half of the case (that contains the big mounting lugs) to the rear half of the case (that contains the electrical connections).
Since the 4 phillips head machine screws that hold the front half of the case to the back half are evenly spaced at 90 degree intervals around the case, those bolts can be removed and the rear half of the case turned 90 degrees (or 180 or 270) about the rotor axis before re-inserting the screws. This will move the plug's position in relation to the mounting lugs.
Be careful to keep the stator connected to the rear housing while doing this as the stator is wired to the voltage regulator. Keeping the stator attached to the front housing while trying to rotate the rear will stretch or break connections inside.
If all the talk of stators, rotors, and clocking seems mysterious, leave it to the pros. An alternator shop will do it for very little money, or at least be able to tell you whether it needs doing with a quick look. I know you're familiar with this approach, Dutch. This warning is meant more for people searching later.
-Dave G. |
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4x4abc
Date registered: Apr 2006
Location: La Paz, Baja California, Mexico
Vehicle(s): 02 G500
| RE: Clocked?
Dave,
what's the harm when you disconnect the stator? |
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fade2blk
Member
Date registered: Jul 2008
Location: Swanzey, NH
Vehicle(s): 2003 G500
Posts: 22
| Re: 2003 W463-G500 Bosch Reman'd Alternator/Regulator Position Problem - FIXED - Photo Post!!!
Dave,
Here is the Senor Plug comparison on the VR's. You can see how the small guides inside are different and actually on the newer "047" model the guides were beat up a bit due to the male end of the plug not fitting in right.
-Don
 (020-plug.jpg)
 (047-plug.jpg)
Attachments
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 020-plug.jpg (214KB - 2 downloads)
047-plug.jpg (190KB - 1 downloads)
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hipine
Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
| RE: Clocked?
4x4abc - 12/9/2008 9:06 AM
Dave,
what's the harm when you disconnect the stator?
The stator is internally connected (wires) to the VR on the rear frame, so it needs to be rotated with the rear frame or those connections can be damaged. The two parts may be fixed together in the G500's alternator, but they're not always, so it just pays to be aware of that relationship when you start taking things apart.
You can see the stator and the wires to the diodes in the rear frame in AMZ's post on accessing a W terminal in his 460 alternator. I'm not sure how similar the 463 alternator is.
http://69.9.37.142/disc/forums/showthread.php?tid=11489&posts=23&hi...
-Dave G. |
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fernweh
Date registered: Apr 2006
Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany
Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa
| Re: 2003 W463-G500 Bosch Reman'd Alternator/Regulator Position Problem - FIXED - Photo Post!!!
Don,
I have just received a new voltage regulator Bosch F 00M 145 382 for the spare alternator - little bit pricey, but it matched perfect the old existing one even the two pin connector. Not sure Wagner Alt has more of these VR's in stock.....
The old used one VR Bosch F00M 145 3247 has very short brushes compared to the new unit. I also have another new VR Bosch F 00M 145 340 on order as a spare for my own alternator.
I do believe the failure of the alternator - if the bearings are fine - is most likely the VR or just even the used up brushes.
Maybe Harald chimes in and gives us a report on this/his alternator failure - was it a slow demise or...?
Karl
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dai
Expert
Date registered: Apr 2006
Location: Oregon USA
Vehicle(s): 300GD 300TD BMW R100RS Landini 80F
Posts: 2110
| Re: 2003 W463-G500 Bosch Reman'd Alternator/Regulator Position Problem
I think that 80 to 90% of the time the failures of alternators are due to failed voltage regulators and brush wear. Field and armature problems are unusual. So are bearing problems.
-Dai |
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fade2blk
Member
Date registered: Jul 2008
Location: Swanzey, NH
Vehicle(s): 2003 G500
Posts: 22
| RE: 2003 W463-G500 Bosch Reman'd Alternator/Regulator Position Problem
Hey guys,
Since changing out the VR(as per Wagner), the G has been running and charging fine, so thats all that was wrong with mine. With all of the ICE and Snow up here in NH,USA this past two weeks the G has performed well. Its my first winter season on this truck and I think for the truck itself since it came out of the Florida area I believe. Now, I still have that horrible high pitched (supercharger like) whine at or above 1500RPM, which I believe is either the AC,Steering or Tension pulley. It doesn't happen all the time, but its quite annoying. Once I get some help to step on the gas with me under the hood to get the whine to occur, I nail it down which one is the culprit and then on to figuring that swap out...
The snow was so bad(or maybe good!) here I had to use both lockers to climb out a few times in low, the truck dug out with no issues.
-=Don |
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prbmeat
Date registered: Dec 1899
Location:
Vehicle(s):
| Re: 2003 W463-G500 Bosch Reman'd Alternator/Regulator Position Problem
dai - 12/16/2008 9:46 PM
I think that 80 to 90% of the time the failures of alternators are due to failed voltage regulators and brush wear. Field and armature problems are unusual. So are bearing problems.
-Dai
I hope so ... b/c that's what I am going to change out over this coming weekend. Thanks for the insight. |
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