alternative alternator

Looking for some advice...i want to upgrade my alternator and finding an original 70 amp is near impossible and if you do find one there incredibly expensive.
What i want to know if anyone has already tried using an alternative alternator, i know the type 4 engine uses the fan for cooling and the regulator is seperate.
Just want to know if anyone has tried it incase i am wasting my time?
Below is the alternator i have found which is 70 amps internal regulator, which is simple matter of rewiring. My only concern is the cooling?
Thanks in advance

 

Will the cooling duct fit on the rear of the alternator and how will you attach the sealing ring on the front (behind the fan)? Without sealed cooling it will likely overheat.

I’m curious - why do you need a more powerful alternator?

 

I have electric steering, 2 hot air blowers and with lights its all abit to much, normally my 55amp pushes out 14.4 volts but with all this on it struggles to hold 11.9
As for the fitment of the cooling parts this is why I am asking, has anyone tried this?

 

People have added a second alternator above the original

 

this is not a bad idea, I don't suppose theres a thread on here you know of?

 

Not that I know of, few with air con pumps added, can do the same

 

I was wondering if I was to fit a leisure battery and connect to air blowers only..what do you think?

 

Are the hot air blowers 12v heaters or just fans?

 

just fans, the original 1 on the engine and a booster under the cab

 

The standard alternator should handle that with no problem.

 

Do you think the regulator could be at fault then?

 

If you arent generating enough power from the alternator, it does not matter how much battery capacity you have, it goes flat.
Fit another alternator with another belt from a double crank pulley, where the aircon would have gone..
Find something with an internal regulator that fits on a simple solid bracket .

You dont really want more load on the fan belt, thats already handling quite a lot of power to the fan and alternator.

 

The regulator is cheap and easy to replace, certainly easier than fitting and additional alternator. The 55 amp alternator should easily handle the load of EPAS, lights, fan etc.

 

^this. Try the cheap stuff first Easy enough to change the reg.

 

Where are you measuring the voltage?

 

Can you not have it rebuilt and rewound?

 

this is what my bus is normally

this with lights, wipers and both blowers on...

when i rock the steering this drops to 11.6v and the red charging light begins to glow

 

Best to measure it at the battery. Anything else doesn't really mean much. Your voltmeter's measuring the voltage up front: with ancient crusty wiring and that load on, you'll likely have a significant voltage drop rear to front.

 

You need to adjust your handbrake first....

 

You do! Desperately. Six clicks, please.