Mechman Alternator last 1 year and 7 month.

[dereileak]

After the entire trouble shoot, the problem was the worn out aluminum pulley. The grove on the pulley was getting thin. Even though the alternator come with a two-year warranty the pulley was in a ware and tears case. So thanks to Chris at Mechman Tec support, he only charges me ½ the price of a new aluminum pulley plus the shipping. Now I have installed my stock alternator with Mechman voltage adjustable adapter. I still can set the voltage output of the stock alternator to 15.5v cold and 14.4 when hot. All 3 batteries are still being charge. Now my stock alternator installed back into my 2011 Toyota sienna and it sound super quiet, it sounds like a new car. Before with the high out put alternator my car have a loud winding sound all the time. I will put the Mechman alternator on the side just for the look in my car garage.

lol

a worn out pulley? and it makes noise so you go back to stock to have a quiet oem sound?

seems like mechman is using real quality parts here.... even if 1 groove wore out on the pulley if you have a 6 groove belt that is more than enough for 200 amps still with 5 grooves. how does only one groove wear out? how does the pulley wear out? rubber vs metal. the metal should win. the belt wears not the pulley.

this reminds me of that time mechman was trying to get out of warranty because the customer put more than one run from the charging post and they said it can hurt the alternator. ya right guys.

and they charged you for a pulley that costs 10 dollars? so you payed 5 plus shipping? if you payed more thats pretty shitty especially if you are still under warranty period.

When I had my mechman alt I wore out the pulley, the belt had slipped on it slowly over time and it heats up the metal and slowly wears it down/melts it. I switched to a singer 2 years ago and he uses steel pulleys because of this, but I just killed the rectifier in his, probably my fault either running my batteries too low, or because I had to take out my rear battery in the back between the alt and the amps. Either way if you push any alt to far it will fail. Luckily he just charges cost for parts and does the repair for free. I will say after how I was treated with mechman I will never be buying one of there products again, they do make good alts but they basically left me in the ditch to die. Singer on the other hand will always get back to me and has given me excellent customer service. Either way you gotta make sure you dont let your battery's get way down and undercharged, that will kill an alt fast.

Edited October 14, 2015 by dereileak