Extra idler wheel for alternator to stop belt squeal

No eBay APP ID and/or Cert ID defined in Kunena configurationYup, i believe this is the one i bought :

Thanks. That is the one I was looking at. I'm honestly surprised that it didn't grow at least a noticeable amount in size. As I mentioned, I will be following this with a high level of interest. I will also probably annoy you several months down the road to get some feedback.

Yes it is a bit odd really.
My buddy has a 120A alternator from a land cruiser in his Jimny. And it's much bigger than standard.

Yeah, i'm pretty sure we are not looking at 145A capasity, based on both price and size, but i can see an improvement on my volt's while winching.

I can ask them now that ive bought it, and used it for a while, if they can provide a more reliable number..

OlaGB. I apologize if it seems like I am using you as a test subject (unfortunately I really am to some degree) but wanted to see if you have had an opportunity to contact the alternator vendor. If they confirm that 145 amps is the rated capacity, I would really like to get some feedback if you have any buildup of heat with the alternator.

Thanks
Bob

It will depend on how they test it.

The standard alternator has a nominal output of 65A @ 13.5V

The Lucas replacement I fitted is rated at 85A (with no provisos, for all I know that is into a dead short).

They should be tested and rated to SAE J 56, which defines the max output as what it gives @ 6000 (alternator) RPM.

It ought to be labelled something like 30/85/13.5 which is idle output/6000RPM output/test voltage.

None of them can give the maximum output for more than a couple of minutes without additional cooling though, they are not designed for it.