DIY Serpentine belt Tensioner delete MOD with PICS

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Old Mar 28, 2023
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DIY Serpentine belt Tensioner delete MOD with PICS

Hi all, after breaking my 3rd tensioner bolt (I followed service bullentine to the T), I decided to get rid of it and opt for a manual tensioner approach. Some fabrication, used parts from an alternator bracket kit from Amazon, and fabricated the rest. Basically I just have the alternator pivoting and added a stabilizing bracket to the bottom. For the belt I used a shorter one of course 7PK1720. I've been running it for a few hundred miles now, no issues. You'll need to manually tighten from time to time but don't need to worry about that stupid tensioner anymore.



Top alternator adjustment

Bottom alternator bracket
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Old Dec 25, 2023
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Re: DIY Serpentine belt Tensioner delete MOD with PICS

Interesting approach. What's the size of the bearing bolt on the tensioner? T50? Here is another way.

Last edited by emich; Dec 25, 2023 at 07:36 AM.
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Old Dec 26, 2023
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Re: DIY Serpentine belt Tensioner delete MOD with PICS

Originally Posted by emich
Interesting approach. What's the size of the bearing bolt on the tensioner? T50? Here is another way. Belt Tensioner Broken bolt , How to fix and replace EASY and CHEAP, Honda civic 2018/ common for all (youtube.com)
Hey there I think so, from my recollection it comes with a bolt. The bolt though on the stabilizer bracket I had to use my own though, can't be super sure to be honest as I just found a bolt that would fit in my bucket of bolts lol. Anyway I've have a couple thousand miles already and no issues so far.
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Old Dec 30, 2023
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Re: DIY Serpentine belt Tensioner delete MOD with PICS

Originally Posted by alzeal
Hey there I think so, from my recollection it comes with a bolt. The bolt though on the stabilizer bracket I had to use my own though, can't be super sure to be honest as I just found a bolt that would fit in my bucket of bolts lol. Anyway I've have a couple thousand miles already and no issues so far.
I am wondering if a normal bearing would be a better option instead of this stupid tensioner.
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Old Dec 30, 2023
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Re: DIY Serpentine belt Tensioner delete MOD with PICS

You'd still need a way to tighten the belt, hence using the alternator to pivot and tighten it. You could also probably fabricate a mount for the old school bearing on a tensioner bolt.
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Old Aug 24, 2025
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Re: DIY Serpentine belt Tensioner delete MOD with PICS

Originally Posted by alzeal
Hi all, after breaking my 3rd tensioner bolt (I followed service bullentine to the T), I decided to get rid of it and opt for a manual tensioner approach. Some fabrication, used parts from an alternator bracket kit from Amazon, and fabricated the rest. Basically I just have the alternator pivoting and added a stabilizing bracket to the bottom. For the belt I used a shorter one of course 7PK1720. I've been running it for a few hundred miles now, no issues. You'll need to manually tighten from time to time but don't need to worry about that stupid tensioner anymore.



Top alternator adjustment

Bottom alternator bracket

Did you still have a pulley in place of the tensioner mount? My tensioner bolt broke again as well and the extractor broke off in the head as well. So I'm looking to bypass that pulley and the tensioner completely
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