04-27-2024, 12:32 PM | #67 |
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Helpful file, thanks - did you notice a difference in the sound of your engine? Also, what model year was your car?
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05-04-2024, 01:38 PM | #68 |
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Drives: 2022 X4MC - Marina Bay Blue
Join Date: Sep 2012
Location: Orange County, California
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It was a long time ago, but I don't recall any change in the sound of the engine. The car is a 2015 F26 (X4). My wife still drives the car - no problems. But also still low mileage. Away from the car, but I think about 35k miles.
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'22 ///X4M Competition - fully loaded Marina Bay Blue.
Lowered on MSS springs. 20" x 10 ET20 Vertini RFS1.2 wheels wrapped in Firestone Indy 500 Firehawk 275/40 tires (square setup). Hers: '15 X4 2.8i - Glacier Silver - loaded M-Sport |
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05-08-2024, 02:28 PM | #69 |
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okay, i just swapped my tensioner. thanks for the info in this thread and others. it's more tedious than difficult. the hardest part was getting one of the T40 torques off and screwing in the new tensioner.
since my TIC and turbo inlet pipe are aluminum, i had to remove the TIC pipe to increase access to the T40 closer to the engine. |
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06-28-2024, 02:31 AM | #70 | |
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Was it as simple as moving the wastegate actuator out of the way, removing the old tensioner, and then installing/torquing the new tensioner? This seems like a very smart preventive move for me.... I have a 2015 320i with a manufacture date of 05/15, so I have the updated timing chain components, but not the updated tensioner. If there isn't much more to it than that, I'm gonna pull the trigger on this for peace of mind. Thank you for posting this! I see you just did it last month. |
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06-28-2024, 04:14 AM | #71 | |
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06-28-2024, 05:48 AM | #72 |
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I used a 27mm ratcheting open end wrench. It allows you to pressure the tensioner while rotating the wrench. They're expensive at the local hardware store but reasonable at AliExpress. Just allow two weeks for delivery. https://www.aliexpress.us/item/32568...Cquery_from%3A
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08-07-2024, 06:22 PM | #73 | |
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Will the new tensioner provide more tension on the chain? |
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08-07-2024, 10:25 PM | #75 |
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Is it possible that the chain actually gets stretched because of the weak tensioner?
If there is not enough tension and you start car or accelerate, the chain will be pulled much harder and, therefore, might stretches. Similar to towing a car with a rope, if the rope loses tension and you accelerate the pressure on the rope will be stronger bringing it to its breaking strengths levels. |
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