Does Prestolite have a permanent magnet alternator? I know at one time you did or were developing one for a 28 Volt system. I acquired a PM alternator from a company based in Mexico and must say that I am impressed. I have over 175K miles and all is well.
Does the aoo12800lc alternator have a bilt in regulator or does it use an external one. also is the AC terminal post were you would energize the alternator.thank you.
Most of your VLF series Alternators are discontinued. Do you have any 24V 300 amp alternators left. If yes, how much are they and what RPM & Horse Power is required to reach maximum output?
Thank you very much for you reply.
In general can I change an alternator's rotation just by changing the fan?
If not please say why (so I can understand the problem)
Discussion:- I want to fit a second / reserve alternator, and can only fit a unit in the "opposite direction".
I have available 8LHA and 110-444 24V 70+ amp units both of which are CW rotation.
(The next challenge would be to source the fan!)
May be a dumb question - but if one doesn't ask...
I have a Motorola model 8MR2048K alternator on my marine diesel. I am replacing the engine tachometer that receives the engine speed signal from the Motorola alternator (via the AC tap or tach signal terminal). To program the tachometer to indicate proper engine RPM, I need to know the number of poles the Motorola 8MR2048K has. I will then multiply this by the crankshaft/pulley diameter ratio and have approximate pulses/engine RPM. Please, could you tell me how may poles the above alternator has? Just curious, is this alternator similar in operation to automotive alternators which are really 3-phase and use six rectifiers for full-wave rectification? I assume the ac tap or tach signal terminal is just the voltage waveform from one of the phases prior to rectification.
Any technical advise will be muchly appreciated! (Pennsylvania Dutch)
I have two failed regulators Part No. 1861652 associated with twin AC203 alternators fitted to a railway vehicle. The regulators are short circuit such that the output increases with engine speed. Changing the regulators fixes the problem.
My questions are:
1. What could cause the regulators to go short circuit?
2. Is this type of fault unusual?
3. Can the regulators be repaired and if so by whom (in the UK)?
4. What type of main fuse should be fitted in the charging circuit?
Is there a modern equivalent available for a Prestolite 9RC3041 24V alternator? Is there tech info available on either the obsolete alternator or a replacement?
I am having trouble with my alternator. Could you please refer me to a test and repair facility in the Taampa, Florida area. The alternator is installed on a Country Coach RV.
well this alt. i have is from a ford ambulance, its a 160 internaly regulated unit, i took it to a local repair man and he supposedly rebuilt it with many new parts includeing a new regulator, but i can not get it to work, ive made sure my batts. were fully charged and all new power wire from alt to battery, but nothing more than a 2.1v from the alt. at a idle its quiet, rev the motor and it sounds as if a turbo kicks in and thats when it does the 2.1v, so im thinking the regulator may be a faulty unit , the man that repaired the alt didnt offer a warr. on repairs even tho he charged 160 dollars to do the work... so im on my own to figure out what...
so im looking to see if i can possibly pick up just the regularot for this unit?and is it possible to purchase it online?
im not sure of model number or whatnot, i have pics of the alt and the new regulator sticker that states its a replacement ..
part number 77973-14v