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Soapy66

Alternator concerns. 1800 TDCI 2005

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Hi all, my 2005 Focus 1800TDCI running fine, but now and again, the lights dim, the car chugs momentarily and then all is good again, am getting metallic noises occasionally too, but being dark when I leave and get home hard to pin point where they are coming from, battery voltage is 12.8V when idle and 14.5V when running with lights full on, suspect the alternator, told by dealership it is a 105Amps unit I need, but I am confused by the array of ones listed on the auto factors sites, one of their sites lists the engine code as KKDA. The original alternator has a label saying 0000019421-51 and 175320. This doesn't come up on a search on Google. No lights come up on the dashboard like the charging or the engine management either. 

 

Regards.

 

Paul. 

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does this car have a spring loaded tensioner wheel on the alternator drive belt?  On my 2001 1.6 petrol I was getting a metallic noise which I could not work out exactly where from for a long time. It turned out to the bearing in the spring loaded belt tensioner wheel. Found out when the bearing jammed and the plastic wheel melted and the drive belt came off (on the M1).

Of course yours could be bearings in the alternator.  how easy is it to get belt off?  if you can do it, I would suggest talking belt off and spinning everything by hand to see if any problems.

If the belt goes around loads of pulleys it is best to take photo before removal to help route belt correctly afterwards

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That you Isetta, that is a possibility, well the belt goes around 7 pulleys and tensioners so not sure how easy it is to remove, thank you for the input.

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