Alternator rebuild...
The noise I thought emanating from the idler and tensioner pulleys bearings (I serviced)... is the alternator.
Just returned from the local alternator rebuild shop... and 15 seconds into the diagnosis... front bearings. The 1.5 mile drive over I thought the thing was going to seize on me it was so noisy... especially with the front engine cover off. Likewise back. The car won't be moving until repair is completed. $189 all Bosch parts... 1 day turnaround. That said... Next project. ;) |
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Will they also do the brushes? |
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I can have my car down for however long... so I'd mail them the core. Postage $9. Out the door... a "new" alternator... $230. Thanks, Pal. Certainly worth the extra $40. Dam n. You'd go the reman route? Edit: I'm going remn - Rock Auto. Thatks, Pipe! |
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I'll phone them and ask about all the bearings, brushes, voltage regulator, and their warranty. Appreciate the advice. :cheers: Edit: $189 includes new bearings, brushes, and voltage regulator... Bosch parts. If the wound wire needs replacing... that's included. 2 year warranty. Looks like I'll be keeping it local. Thanks, again, for the heads-up on Rock Auto. |
I'd appreciate a recommendation...
Should I stick with the rebuild (above described)? Or, should I consider this remanufactured unit: https://www.ebay.com/itm/Reman-PORSCHE-BOSCH-120A-Alternator-built-by-an-Independent-U-S-A-Rebuilder/163670226753?hash=item261b817741:g:d80AAOSw-xVaPnBZ FWIW... the options sticker under my hood identifies my alternator as a 1.7KW model. The part number is 996.603.012.01 Is that going to make a difference to the rebuilder... that's it's 1.7KW? Does that part # align with an alternator for a manual transmission only? Does the number 0 124 515 015 above the 996.603.012.01 matter? I ran both numbers and they both point to this unit. I'm also wondering if maybe already the alternator has been replaced given the "manual tranmission" language. Finally, my existing alternator doesn't have that flush "cap" at the end of the pulley. Thank you for your help, guidance, and recommendation. :cheers: |
I'm no expert but, 1.7Kw works out to about 140 amps. That seems like a lot for a boxster. I would have expected more like 100 amps. Next it is very important if you have a manual transmission that you have an alternator pulley that acts like a ratchet so when the engine is abruptly slowed down by a downshift that the alternator can continue to rotate briefly rather than put stress on the armature shaft. You can identify the pulley by it having a dust cover on the front.
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I made a mistake. The 1.7KW is for the starter. I erred thinking it was the alternator... and the rebuilder suggested I had the KW associated with the alternator. He was correct. This morning I retrieve the alternator, and Friday (when it warms outside) I'll reinstalll it. My alternator doesn't have that dust cover and, when it was being noisy, would whir respective to the downshift. For a spell I was hoping it wasn't the transmission... and it isn't. Cheers! |
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