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General E46 Forum
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Old 10-14-2013, 09:39 PM   #1
bgordon1000
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Question Ok, Tensioner is NOT supposed to break HERE! Waddo I do?

2000 323i tensioner pulley. As you can see in the picture, the pulley mechanism itself did not break. It actually broke the metal that the pulley bolts into. My question is, is this bracket replaceable, or is it actually part of the engine block?
I try to avoid posting questions that have been asked 100 times before, but I have looked everywhere for this information. I'm stumped.
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Old 10-14-2013, 09:51 PM   #2
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Is that the A/C, or the alternator tensioner?
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Old 10-14-2013, 11:14 PM   #3
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Looks like part of the block snapped off to me looking at this pic compared to yours

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Old 10-14-2013, 11:36 PM   #4
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Ok, Tensioner is NOT supposed to break HERE! Waddo I do?

Jeez. That's bad
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Old 10-15-2013, 12:30 AM   #5
paraklas
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Originally Posted by bgordon1000 View Post
2000 323i tensioner pulley. As you can see in the picture, the pulley mechanism itself did not break. It actually broke the metal that the pulley bolts into. My question is, is this bracket replaceable, or is it actually part of the engine block?
I try to avoid posting questions that have been asked 100 times before, but I have looked everywhere for this information. I'm stumped.
Attachment 530873
The hydraulic tensioner upgrade uses 3 bolts instead of 2, and the bolt pattern is different as well compared to the mechanical tensioner; it bolts to an unused thread on the block and leaves empty one of the previously used threads. I don't recall which one though, you may be lucky enough the one that broke is the one that will be unused.
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Old 10-15-2013, 12:37 AM   #6
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If that's the tensioner located by the alternator then you need to buy a used oil filter housing because part of the housing broke off. At least it's not the engine block itself.

This is a GOOD reason to use a calibrated torque wrench!
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Old 10-15-2013, 12:45 AM   #7
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If that's the tensioner located by the alternator then you need to buy a used oil filter housing because part of the housing broke off. At least it's not the engine block itself.

This is a GOOD reason to use a calibrated torque wrench!
thank god. i was feeling mighty bad for the OP thinking he potentially totalled his car.
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Old 10-15-2013, 01:03 AM   #8
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No big deal. Pull the ofh and get it welded.
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Old 10-15-2013, 06:52 AM   #9
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Appears the upper bolt broke and then the torque/tension was transferred only to the lower bolt and broke the mounting boss off?

Hopefully it is just the OFH that needs to be replaced, but again, check into the other tensioner that might not require that mounting hole as well.
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Old 10-15-2013, 07:44 AM   #10
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Yep its the oil filter housing that needs replaced. Like they said above find a used one.
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