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      08-01-2023, 11:20 AM   #10
hellokitty
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Drives: '17 M3 ZCP DCT
Join Date: Jul 2010
Location: Southern California

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Quote:
Originally Posted by slaughter.mode View Post
Yeah since it’s become hotter here in SoCal I’ve started using the AC and I noticed a ton of rattle. I haven’t used the AC since I swapped my motor so I don’t know if it’s been this way the entire time or not. With the AC off the car is fine. I took it back to the shop and they took a look and said my tensioner is wiggling aka the spring is just worn out. I wonder if that’s really all it is. I mean my car does have 115k on the chassis but it’s only 5 years old. I drive a lot. I’d imagine they’d have noticed the cracked / worn motor mounts when we re-installed the new engine. If not there’s also these RevShift mounts with 80A poly in them (stock feel). Wonder if they’d be a useful sidegrade.
I'd replace the belt and tensioner first and see if that fixes it
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