Voltage regulator broken every 500 km

[BAHADORI]

Hello,

I have trouble with regulators Lucas C22253 (from Barratt) mounted on my E-type S1 4.2.

http://www.sngbarratt.com/ProductDetail ... aaf2c17bdb



The first ran only 500 km, the second die after 700 km ..


This can not be a alternator problem because it is also new (Barratt also).


Someone you have any ideas about this?

Thank you


Jacques