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Old 10-27-2019, 04:16 PM
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Hydraulic tensioner - Does it have some play in it?

I am swapping out my pulleys today and noticed that the hydraulic tensioner has some play in it, it wiggles. Is that normal or does that mean the tensioner needs to be replaced too?
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Old 10-27-2019, 05:04 PM
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A little movement is ok. It shouldn't have much though.
Spin the pulley and make sure it's smooth, no noise.

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Old 10-27-2019, 05:15 PM
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How many miles in your car?

If > 200K, replace the hydraulic tensioner.

Anyway, a little bit of play is OK, just lubricate the pivot points with some engine oil. The pulley: you can buy just the pulley alone. I use ONLY INA brand.

Info in bimmerfest E39 forum.

PS: Consider cooling overhaul if > 150K miles.
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