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O/P Sensor R/R

Bill Hagan

Bill Hagan

GT Reference
GT di Razza Pura
Joined
Oct 29, 2008
Messages
1,773
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1,083
Location
Above Pott's Camp along Braddock's route, Virginia
What a monumental PITA. :sweating:

I have tried the “easy” way to access it by removing left header pipe and using an offset 21mm wrench. While I can get the wrench head over the sensor and even onto the splines, I cannot get enough movement to remove it … or, FTM, even to move it at all. There is simply too much in the way.

Before I resort to the “dreaded air box” approach — which, as I recall, gives precious little way to get at the little effer, too — thought I’d ask about pulling the breather tube out of the way.

But, when I go to the parts diagram, I get confused.

What I “see” is what appears in this screenshot.


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But is that (#18 there) the same as as what #10 joins here, which doesn’t look quite the same to me?


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Is this all the same breather hose that connects the crankcase to the air box?

And, will removing it give me any more bite on the sensor head?

Yes, I am confused, and, as usual, in over my head. Hoping someone will save me from myself. :)

Grazie.

Bill
 
Whew, that makes my head spin! Don't know what I'm looking at, but it looks to me that #18 in diagram 1 is what hose #10 connects to (on the lower end) in diagram 2. I wish you luck!
 
Confirmed on above post Bill. There have been some creative solutions over the years here, but from memory, yes, air box removal is what it takes.
 
Bill, mine is a 2012 with I guess an improved sensor but while I was doing my lifters I saw the sensor that everyone said was a PIA to change. Just out of curiosity I put my long extension on my ratchet and was able to get on it fairly easy. What I did was loosen the front of the airbox and pull it up without disconnecting the back. I had to do that to reach the cap for the right cam chain tensioner. That was when I saw it and tested it for future reference. Can't remember what all I had to pull to do that but it wasn't much.
 
Interesting, Rudy, and thanks.

Will give that "front-only up" approach a shot.

As all know -- or have colorful cursing in their futures :swear:;) -- the real challenge with the air box is not that item itself, but in reinstalling the hoses from the box to the throttle bodies. I start spasmodic twitching at the thought of revisiting that challenge. :sweating:

Bill
 
same here, liberal spray, line the pipes up and give it a good hard dunt at the front of the airbox, slipped right on both sides. it was a bit of a pain getting the circlips tightened up more than getting the box connected up to the throttle body
 
Mackers said:
Perhaps some help here: http://blog.road2ride.com/search?up...-max=2016-01-01T00:00:00-05:00&max-results=10
Click to expand...

Interesting. Thanks. I emailed the guy. Don't know him, but he lives pretty darn close ... and is next door by "Honey, I'm taking one of the Guzzis to get a loaf of bread" standards. ;)

I hear all of the hints about making the air box easier to reinstall, but I'd still smile while pulling the trigger on the guy who designed it. :punch:

Seriously, my slippery drug of choice is liquid silicone, but the whole process is more of an adventure than I seek.

I am down in the Moto Grappa now, listening to CLE courses so I can keep my law license -- tho I don't know why; I guess I just don't want to bag groceries if thing$ go $outh :cry: -- while pulling the tank and getting to the sensor.

More to follow, tho I'll likely be all afternoon just getting the "quick release" off. Yes, I know all the "tricks." I think I need another bullet for that engineer. :rolleyes:

Bill
 
Last edited:
Bill, did you get one of the sensor wiring kits?

And as for getting the boots back on the throttle bodies, I always use a light coat of vaseline...
 
ITSec said:
Bill, did you get one of the sensor wiring kits?

And as for getting the boots back on the throttle bodies, I always use a light coat of vaseline...
Click to expand...


Yes, thanks. You sent me one. Installed it a few months ago … when I last had the air box off. A great mod.

It would have been smarter to do this job then, but ...

Now, for those of you have not yet done this chore, and have any interest in same, here are some pix. No sound, so no cursing, but let your imagination run free.:swear:

The worst part from my perspective is getting a wrench to seat and turn.

I did not have a 21mm wrench before this job, but, because a fellow on another website said he had been able to go in from the left side rather than the top, using one of these, I ordered that: http://www.sears.com/craftsman-professional-21-x-23mm-full-polish-deep/p-00944368000P

I wish I had a vid of how he did that.

A no-go from the side, and a major PITA from the top. Lordy, I must have made a bazillion teeny turns, each requiring removing and reseating of the wrench, before it came out.

So, Amazon is sending one of these tomorrow: http://www.amazon.com/TEKTON-WRN571...&redirect=true&ref_=oh_aui_detailpage_o01_s00

Anyway, while this may be child’s play for some of you, in’s an ordeal for me. So, for those of you who are similarly challenged by things mechanical, here’s how the removal process went:


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Tomorrow, I start the reverse process.

Best from the Moto Grappa at the top of Virginia,

Bill

P.S. Just as I was finishing the above, friend “Guzzi Steve” called from Atlanta to see if I had put a thermite grenade between my Norge’s jugs. He had some great thoughts that I’ll let him expand on if he sees this. If not, I’ll try to repeat those without garbling ‘em.
 
I declared victory today.

After Kathi made me enter tick country this morning to kill several nests of Allegheny Mound Ants — nasty buggers, those —


i-c9j8m4Q-L.jpg



… she released me from her “Perpetual List” of honey-do’s, so I rushed down to the Moto Grappa before she could change her mind!

Installed that oil-pressure sensor. Still don't have quite the right tool. Sure hope no one ordered that 21mm ratcheting wrench I mentioned. It’s a quite nice addition to my tool box. Taiwan made. Unfortunately, it’s too fat for the job.


i-8Q5dZ56-L.jpg



I eventually just used my (also too fat) hand and fingers to insert and then tightened as best I could that way. Then, used that offset box to torque down to "wrench-art" specs. Attached ITSec’s snazzy little connector to the top, and it’s done.


i-87GSzns-L.jpg


After that, of course, came the fun of reinstalling air box, but even that went better than I had feared. Still sucks green eggs, Then, the tupperware, but that’s become like field stripping my old Army 1911, as I can almost do blindfolded!


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Best, “Switch on … Contact!” VAROOOOOM!

No red light.


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How sweet it is.

Bill
 
Good to hear. Keep a hold of that other wire, you'll need it when they eventually ship you a sensor with the new spade head.Now, though, it will be plug-and-play!
 
Awesome Bill, you now go up a level in the mechanical ability chart. Soon (no, not that soon) you will:sweating: be competent!
 
I'm a bit late to the party here but would just like to say I've found two things helpful while fitting and removing my airbox.
One, fitting a fuel quick connect that is a quick connect and two, using a hairdryer to soften the rubber airbox manifolds.
There's actually a third one, remembering to fit the airline between the airbox and stepper motor. Nothing more annoying than successfully slipping on those manifolds and seeing that little hose sitting on the bench.

Steve
 
I just broke down and removed the alternator which made getting the oil pressure switch in and out much easier but removing the alternator was a whole other job unto it self.
 
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