Alternators

4944PA TO 4949PA

I HAVE A CUSTOMER WITH A 4944PA CAN I SELL HIM A 4949PA TO REPLACE IT? WHAT ARE THE DIFFERENCES?

I NEED A PRICE FOR A A0014842LCH. Location Lawrenceville, GA NO ONE IN OUR AREA HAS AN IDEA

I NEED A PRICE FOR A A0014842LCH. Location Lawrenceville, GA NO ONE IN OUR AREA HAS AN IDEA

Self Exciting Stops to function

Some months ago I posted here that our 8MR2070TA fitted in our boat, was not giving any output having worked successfully since January 2008. An electrical engineer was called and explained that occasionally these alternators fail to self excite. A short period of external source of power is required just to reinstate the self excite, which he did successfully. I have run a wire through to the alternator from a switch and light on my control panel to use to re-excite the field when this occurs again in the future, please could you tell me which terminal I should connect to?
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keith@hadar.org.uk

Pulses per Revolution

I have a 8MR2069TA alternator installed on a Yanmar diesel in my boat and wish to install a tachometer reading from the alternator. The first question the installation guide asks is the Pulses Per Revolution (PPR) of the alternator, which is calculated as the number of Poles times the ratio of the crank pulley over the alternator pulley, divided by two. (PPR=PxR/2) Could you tell me the number of poles in this alternator?

Many thanks

Martin

4860 and Isolator

Is it possible to get a 4860JB alternater to work with a battery isolator? Need a way for the alternator to sense the battery voltage.

pat

Alternator

Hello!
I would like to know more about the 110-258 alternator.
1. What is the maximum speed(rpm) for the alternator?
2. How much is the lifelength reduced if you push the alternator to the rpm limit.
3. How much is the capacity reduced by temperature?

4860JB Dim warning light

Alternator: Aoo14860JB
Regulator: E103724

My dash Light now comes on Dim and stays that way after start up. The ignition wire has a pos. 12.6 volts.(at alternator)Voltage at battery isolator is 13.4 volts, with engine running.
I'm told this maybe a bad Diode? If so can you supply me with the correct part? Alternator is only one year old.(1,000 miles)

thanks
Pat

AVI 128 35215334UK

hi

   need wiring diagram to connect to volvo penta md17c. thank you

                 regards ben

Alternator part number

I have an alternator on my bus, which is not original. It has a built in voltage regulator. The label on the VR states that it replaces a Leece Neville 79000. How can I find the alternator part number. I would like wiring diagrams, bulletins, etc. for the unit.
Thanks.

Re - Type A127-MT

Hi,

A Prestolite Alternator Des No 47020067 Type A127 - MT 12 volt 70 Amp alternator is fitted to an engine on a narrowboat I am about to work on.

Could you confirm please if this is or is not an isolated return type, and point me in the direction of any information regarding this alternator.

Regards

Dave Wilson