V85TT Air Box Lid Mod

[Bill Hagan]

Glad @GerryAZ cleared up the missing seal concern.

I just did the 12.4K service on my '22 V85 Oreo Guard and was curious, given the chatter among V85 folks about "poor air box design, etc.," how much debris of various kinds might be in the air box.

Answer: Not a visible mote.

The several fasteners take care of any plastic irregularities.

Reinstallation went swimmingly until one of the lower clips -- #13 "spring" -- disappeared into the nether regions. Many curses later, I found it with a flashlight and contortions on the floor. Retrieved it with a magnet. Had worried that it had gone into the TB.

Bill

P.S. Gerry, as I am married to the Perfect Pillion & Polish Princess, I am ecessarily obliged to use OEM air filters, as they are made in Poland.

 

[Bill Hagan]

Good morning (again).

Saw this one from you after I replied to the other.

You are obviously way more fastidious and careful than I am in such things -- e.g., as in this air box discussion. That is NOT meant as mocking your position; if anything, it's intended to be self-deprecating in an embarrassed sort of way.

I'll let the engineers here (and there are several) address your specific questions about possible damage and mitigating future issues, but my approach with my motorcycles over the years is not to get too worked up over "sky is falling" web tempests.

I view this one as such, but still thought it prudent to check earlier when I first read about and again while doing the 12.4K service recently here in the Moto Grappa. In both instances, I noted the (slightly) misshapen sides of the air box, but, when installed into the groove with seal and the fixing screws tightened, all was well. And, I did not find anything in there except air!

[As an aside, FWIW, I did not replace the "missing flap" at the bottom and even removed the one there.]

All of the above said, I'll view with interest any comments from the know SME's here to the contrary.

Hope to see you next week as AJ and I head to Tennessee from the top of Virginia.

Best,

Bill

 

[MGB81]

My 2020 airbox fit's together nicely. I read similar stories of poor fits, it may be taking the time to ensure all is lined up properly.

Ditto on the 'gasket' in question being unnoticeable.

 

[Mr. Goodkat]

As for the airbox, I might be overreacting a bit. I know it's probably not to big of a deal at this point, but I'm glad I caught it now. I bought the bike used but it was basically brand new, and it just sucks to know the engine was taking in fine dust.

 

[GTM®]

I learned of the unfortunate news that the airbox sucks, which has me concerned. I checked mine tonight and sure enough there was some dust. Not a ton, but dust has made it through the airbox seam.

Combined with this thread. ALWAYS SEARCH AND READ BEFORE STARTING A NEW THREAD, PLEASE. The leak is past the filter, not the seam. Covered in the thread above.

 

[094v4me]

Well I must say I was very disappointed to find this mess after riding the entire South Dakota BDRX. It's actually sad to see such poor design. Needless to say I saw the immediate need to rectify the issue.. and investigate what could be done. I basically cleaned everything out really good and starting to dig in. removed the tiny little seal and really packed that good with grease and checked the K&N filter to make sure nothing was really wrong with how it was installed (it doesn't fit very well on the ends and had to trim a little) (need to order the BMC) Like many others, I found the box lid flimsy and just does seal very well. (this new air box design is for a reason and should be a recall) Down the right handhand side (right foot) of the sir box does not fully engage the tongue and grove clips installed. So my next move was to install foam on bottom, RH and LH sides of the box to give another layer of sealing/filtering.. BTW I could never understand why so much water and muc ends up under the seat. It comes in from under the air box. The above remedied that situation. I don't think I have photos of that. Sorry about the photos in a Zip I just could get them to attach otherwise

 

[094v4me]

U can see on the right hand side of the box where the dust and dirt was passing the tongue and groove seal. Yes it was clipped.

 

[GerryAZ]

There are at least two different K&N filters that cross reference to the OEM Moto Guzzi paper filter. Are you using the one recommended by K&N for the V85TT (MG-1315)?

I had sealing issues with the paper filter, but K&N has been fine. I do use a little sealing grease for insurance against leakage.

 

[094v4me]

There are at least two different K&N filters that cross reference to the OEM Moto Guzzi paper filter. Are you using the one recommended by K&N for the V85TT (MG-1315)?

I had sealing issues with the paper filter, but K&N has been fine. I do use a little sealing grease for insurance against leakage.

Yes sir... The K&N seems to seal as intended. But if you look closely at the one picture along the right side you will see the tongue a groove seal failure. Let's just say I was shocked to open this up and see it as such. I will purchase the new set up, However I think it's sad that it doesn't get recalled. I have taken much precaution since this finding. In the interim I have stuffed foam in a long that side, o-ring was carefully pulled out and silicone greased, placed carefully and clipped into place. That right side will not pull in tight, hence the foam. I swear I have a photo somewhere of the 2 halves not pulling together. I'll try and find it