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Old 06-28-2019, 08:26 AM   #1
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Chasing Oil Leak

My CSS has been leaking around my oil filter for quite a while (I have the L&N filter adapter w/ spin on filter). So I tightened the filter a bit more. Still dripping off the bottom of the filter. So I take the filter off and tighten the adapter. Still dripping. By now, the area around the filter is dirty, so common practice is to clean the area and see where it's coming from. Once I've done that, it appears the leak is coming from the adapter to the engine. So I pull the adapter off and found the problem: there's a rubber o-ring around the adapter (like the rubber ring you put on your factory filter canister) and by now it's pretty flat. I call L&N and the tech supt guy tells me they've just started selling an o-ring kit for the adapter. I order it up - $21.

I checked my records and my adapter is 5 yrs old and 40K mi. So for those of you who have the adapter, be aware it can start to leak due to a flat o-ring. Here's the link:

https://lnengineering.com/spin-on-filter-adapter-o-ring-kit.html
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Last edited by husker boxster; 06-28-2019 at 08:28 AM.
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Old 06-28-2019, 08:56 AM   #2
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Once you receive the kit measure the O-rings McMaster-Carr "may" have them for much cheaper.
At least you will know for the future.
$21 for two O-rings is pretty pricey.
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Old 06-28-2019, 01:20 PM   #3
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The o-ring kit is $12, not $21..........
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Old 06-28-2019, 05:39 PM   #4
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The o-ring kit is $12, not $21..........
Thank you for the correction
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Old 06-28-2019, 05:51 PM   #5
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Yes, it is $12, $21 shipped. I'm not dyslexic. Sorry for the confusion, we're experiencing a heat index of 105 today. My garage doesn't have AC.

Regardless of what you pay for your o-rings, just be aware you may need to replace them if your adapter is getting up in yrs.
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Old 06-28-2019, 07:35 PM   #6
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Originally Posted by husker boxster View Post
Yes, it is $12, $21 shipped. I'm not dyslexic. Sorry for the confusion, we're experiencing a heat index of 105 today. My garage doesn't have AC.

Regardless of what you pay for your o-rings, just be aware you may need to replace them if your adapter is getting up in yrs.
sucks when shipping is as much as the part.
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Old 06-29-2019, 04:26 AM   #7
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sucks when shipping is as much as the part.
I won't purchase from crooks.
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