K&n Oil Filter Failure

I would think the warranty only applies if you have proof that the filter was fitted by a fully trained technician.
Hopefully your engine will be okay if you caught it quickly enough, but it is worrying until you get the bike running again. It sounds like you know what you are doing so just listen to the engine at different rev bands and ride on some well known to you roads to see if you can detect any sluggishness or 'noises'
I would definitely pursue a claim with K&N but be prepared for loads of small print.
As DD has said in the previous post, it is suspected that fakes are on the market.
Good luck mate

 

Just goes to show my incoherent ramblings are occasssionally useful

 

Most probably camshaft / valves
You will need to strip down the top end as planned, if it is only tapping it may be that some adjustments can be made.
May be no damage, fingers crossed.
Read up on the K&N warranty though before stripping the engine, as you may void any claim if you are intending going that route.
My gut feeling is that they would supply you with a new filter only, which you would probably not want to use due to this failure.
Not good at all, particularly when you have fitted it yourself with no excessive tightening of the nut portion.

 

That is one messy looking filter Do you know how long it had been on the bike?

 

It certainly doesnt look new! if I was guessing from the photograph I would say a good few years old ???
What year was it fitted ?
Another disadvantage with the nut style of filter is the slightly reduced ground clearance and the possibility of the nut taking a knock.

 

Think i'll stick with OE after seeing this.

 

Well done DD, very worrying.
Have you had chance to do any destructive torque testing yet, because it now looks like you will have to do the several different types of nut fixing.
Look at the Date of Manufacture of all your filters and tie them to the country of manufacture.
If K&N have made changes to their method of manufacturing it should have been standardised across all their suppliers.
Obviously they will still want to sell their old stock, which is why you may be seeing the differences, there should be a date for the standardised process change if it has been implemented correctly
Companies like K&N with high volume manufacturing are always looking at reducing costs, so it is inevitable that changes to the product will occur, but not to the detriment of the products basic function.

 

Bit scary this

 

Well i guess if we don't see your results on the forum means that K&N have offered a payment and you've accepted K&N's offer of a payment to keep your "shocking results" quiet from their customers.
So, I aint buying any more cos if we see them we'll be shocked and if we don't K&N don't want us to be shocked!
Just make sure you get enough money to help us poor deprived K&N customers drown our sorrows at the GMU

 

Yes I fully understand DD, you don't want to be costing yourself any money to do comparison tests, plus ideally you would need to do a minimum of 5 filters of each type and take the average for the tests to have any credibility.
This thread has taken an interesting turn but it does not surprise me due to the constant desire for companies to source cheaper and cheaper suppliers.
False economy in the long run, losing customers like yourself through penny pinching accountants controlling reputable companies.

 

To put it simply, some clever twat at K&N has come up with a cost saving idea that has set £ signs spinning in the eyes of the Accountants.
It would be interesting to see if there was any Quality Control documentation relating to the engineering changes.

 

www.st-owners.com/forums/showthread.php?115338-Problems-with-K...Oil-Filters seems like this is not a new problem

 

Really sad to see this cost reduction putting our lives at risk!
I have used K&N but if this is the quality of a 'premium' brand than I shall be looking elswhere.

What is a good alternative?