Webley91
Cast Iron
- Joined
- Feb 13, 2009
- Location
- London, England
I have a failed alternator from a Mitsubishi 2.5l Diesel engine. It is believed that the internal electronic regulator has failed, which can easily be and cheaply replcaced.
On disassembling the alternator, I found that the rear bearing had spun in the aluminium casing. The bearing is the type with a groove in the outer race to hold a spring clip. I am unsure of the correct term for this type of bearing (see link below). The spring clip was found to be broken into two pieces when disassembled. This had presumably allowed it to spin in the bore.
I have considered boring out the bearing housing and fitting a steel sleeve. This would not be necessary if a bearing with a suitably oversized outer race could be found.
From what I have read, these bearings are not interference fitted to allow for expansion due to heat. Is this correct? If so, whay clearance would the bore need to be machined to?
There is also a groove in the bore in line with the position of the spring clip. Was this groove machined by design or worn into the bore by the loose bearing?
Link to the image of the specific bearing:
https://www.shop.bendiks.pl/eng_pl_140432-NS-Bearing-36739_1.jpg
Thanks for any information.
On disassembling the alternator, I found that the rear bearing had spun in the aluminium casing. The bearing is the type with a groove in the outer race to hold a spring clip. I am unsure of the correct term for this type of bearing (see link below). The spring clip was found to be broken into two pieces when disassembled. This had presumably allowed it to spin in the bore.
I have considered boring out the bearing housing and fitting a steel sleeve. This would not be necessary if a bearing with a suitably oversized outer race could be found.
From what I have read, these bearings are not interference fitted to allow for expansion due to heat. Is this correct? If so, whay clearance would the bore need to be machined to?
There is also a groove in the bore in line with the position of the spring clip. Was this groove machined by design or worn into the bore by the loose bearing?
Link to the image of the specific bearing:
https://www.shop.bendiks.pl/eng_pl_140432-NS-Bearing-36739_1.jpg
Thanks for any information.