Oil Pressure Warning - 2018 v7iii Stone

[Kev m]

It’s shown and described in the YouTube video that I linked to. I claim grandfathering!

I assumed it might be shown there, but wanted to "explicitly say it". 

[LibrarianFuture]

Hi all,

Just a small update.

I didn't have the time today to actually replace the sensor. However, When I got to it, there was oil up the connector, and the sensor itself was barely hand tight.

I'm hoping this just means the sensor and the various washers have failed. But I did wonder is this can be a symptom of anything else?

[Kev m]

Hi all,

Just a small update.

I didn't have the time today to actually replace the sensor. However, When I got to it, there was oil up the connector, and the sensor itself was barely hand tight.

I'm hoping this just means the sensor and the various washers have failed. But I did wonder is this can be a symptom of anything else?

You're there, so go ahead and just replace it.

But it sounds like your entire problem is that the sensor unthreaded. It might be fine, but no reason to reuse it now.

Keep in mind the sensor is because just a spring loaded switch which responds to the hydraulic force (pressure) placed against the spring in the passage. If the sensor is loose, that pressure escapes around the threads and might not leave enough to activate the switch (or in this case deactivate the switch since pressure switches are usually normally ON switches that activate the warning circuit UNTIL they are physically turned off by oil pressure pushing the switch so the contacts open).

[BMCMOTO]

Not likely any other problem. Please be aware that the bottom part of this arrangement is a holder, which Guzzi sometimes call a union. That part also engages the rear cam bearing in small block engines. The engine crankshaft should not be rotated with that part out of the engine block as the cam bearing can rotate and then be out of synch and the dowel may not line back up with the camshaft bearing hole.

A good illustration can be found here:

https://www.guzzitek.org/parts_list/pb/750/

The Breva illustration is the clearest.

Brian

[LibrarianFuture]

Not likely any other problem. Please be aware that the bottom part of this arrangement is a holder, which Guzzi sometimes call a union. That part also engages the rear cam bearing in small block engines. The engine crankshaft should not be rotated with that part out of the engine block as the cam bearing can rotate and then be out of synch and the dowel may not line back up with the camshaft bearing hole.

A good illustration can be found here:

https://www.guzzitek.org/parts_list/pb/750/


Brian

That’s much appreciated, thanks Brian. When I say it was hand tight, they both rotated and came out with each other if that makes sense?

This tells me both were loose, and given your above info, sounds like it may have been a problem for longer than I’ve realised?

[Oca Grassa]

Also may be how water ingressed into your engine. I for one do not think your commute is why.

I commute just 7 miles each way. Some of it highway speeds, some of it sub 40 mph surface streets. In winter. My Norge is my commute bike. Never once had water or even moisture in my oil. Though the breather box was plugged solid with emulsified oil when I did my 1st service on it. We shall see if that was from me or the PO on my next service.

[Bulldog9]

Also may be how water ingressed into your engine. I for one do not think your commute is why.

I commute just 7 miles each way. Some of it highway speeds, some of it sub 40 mph surface streets. In winter. My Norge is my commute bike. Never once had water or even moisture in my oil. Though the breather box was plugged solid with emulsified oil when I did my 1st service on it. We shall see if that was from me or the PO on my next service.

@BMCMOTO that's good information to know. Thanks

@ OCA If you pull one of your valve covers off, you'll probably see that the backside has a bunch of the emulsified oil/ what I call Mayo. Of course it will also build up in the air oil separator/ breather up by the air box. Not sure if you have a four valve or eight valve Norge, but IIRC, the 8v CARC bikes are a bit over cooled, and one of the problems is they no longer have a thermostat to control flow through the cooler like the 4v motors did.