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What I started doing is when I do my oil change.... I just tap the middle down a little on my Bosch Filter....
I use a socket , and tap it with a hammer a couple of times...
Works for me..

Sent from my SM-A102U1 using Tapatalk
 

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What I started doing is when I do my oil change.... I just tap the middle down a little on my Bosch Filter....
I use a socket , and tap it with a hammer a couple of times...
Works for me..

Sent from my SM-A102U1 using Tapatalk
Yup, that's the fix for them.

I'll post up some pics and info later about it.

Rudy Jeremias (rij1)
 

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The baseplate area of the filter is contacting the union nipple/bolt hex tightening area and bottoms out before the rubber oil filter seal mates tightly to the adapter plate surface (Red areas in the pic)
.
So it leaks between(Blue areas in the pic).
Here's a pic I edited to show.
There's a fix to the filter which isn't hard to do. View attachment 247526

Thanks boss!!!!!
 

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Anyone had luck with the K&N filters? I just ordered one but if it's going to cause a leak, I'll just wait and order a filter that does the job right the first time. Seems like this thread was pretty Bosch focused, any reason why?
 

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Bosch was popular here for its great quality and its long oil change interval and it was good for dino-oil or synthetic. Plus it came in longer canisters. Originally it was mostly all black which lots of us liked.

A number of oil filter brands made the same type changes resulting in less concave space. I've been finding hot rod car and truck sites, race sites, and bike sites suffering the same leak. Most found different filters, then some of those different filters were also changed to shallower concave and so those folks went thru the pain twice.

If you follow the threads containing dimensions and pictures then you can open the box for any brand firment while in the store and measure with a flat and a caliper.

The Yamaha factory oil filter still fits and seals, but its small and doesn't last as long. And its crazy expensive.
 

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Did anyone ever re-measure after the fix of tapping down the center of the filter? Curious how much space was needed, and if this can be applied to other brands as well. If there’s a number I’ll try it on the K&N and repot back.
 

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I expected tapping it down would just flatten the other end, I gave it a go and remeasured finding the same dimension with no change. Hitting it harder indeed dented the other end, still no difference in the concave end. Also tried in a rag in a loose vice. Bosch 3323 white label. Others somehow managed to get results.
So what do you use if you can't get a hold of a black label Bosch?
 
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