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 2009 GRiSO 1200 8V, oil switch replacement

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Pete Roper
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Gaucho
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Gaucho
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2009 GRiSO 1200 8V, oil switch replacement Empty
PostSubject: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Thu Mar 25, 2021 8:39 pm

G'day to all,
Coming back from a ride last week I noticed an oil leak on the left side of the bike. Recently I have performed a roller conversion to the bike, so my first thought was: OK, let's see what I screwed up.
After removing the left wing and gas tank I found the V of the engine soaked in oil. Checked the banjo bolts for the oil lines going to the cooler, they were fine. As I'm checking around I pray that I didn't damage the base gasket for the cylinders during the roller conversion.
At some point I unplugged the oil pressure switch and voila! connector dripping oil. The little bugger was leaking from the connector end.
No big deal, go to the AF1 site, lookup the part number and it's available. Run the payment and FedEx to my house.
When the part arrived to my house, this is what I received vs what i removed from the bike:[You must be registered and logged in to see this image.]

Different threads, different diameter, different connector. Started doing some digging, seems that it's the correct "updated part", and it needs a male to female adapter, male M12x1.5 to female M10x1.0.
Not willing to wait, and realizing that the switch looked somehow familiar, further search shows that is the same oil pressure switch used in old BMW cars and Range Rover.
Crossed reference Beck Arnley P/N 201-1515. After a trip to my local NAPA store, came back with this:
[You must be registered and logged in to see this image.]

Same thread, only difference is it uses an aluminum washer. Also same connector:
[You must be registered and logged in to see this image.]

Total cost: $9.50.
You will need a 15/16 socket to install it. I will install it this week and if any problem arises I will update.
Best regards,
Gaucho

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rsmcpheet
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sat Apr 03, 2021 9:12 pm

What is the part number you ordered from AF1?
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Gaucho
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sun Apr 04, 2021 3:26 am

I ordered P/N 978854.
Also the adapter for this part is P/N 887123.
Gaucho

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rsmcpheet
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sat Apr 10, 2021 1:42 am

Thanks! My bike has been CONSTANTLY having a slow leak and no dealer has been able to fix it. I have it in the shop right now and hopefully this information will finally fix it.
Have you had any leaks yet after replacing this sensor?
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Pete Roper
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sat Apr 10, 2021 1:55 am

The factory solution of the switch with a different thread and a spacer is really very half-arsed. It also has the problem that the spacer is a dirty great hexagonal thing and can foul the alternator. Far better to get a switch with the correct thread and be done with it.

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ratso88
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sat Apr 10, 2021 6:04 pm

This may not help the southern contingent but RockAuto has the Beck/Arnley switch p/n 201-1515, described above for ummm like six bucks. Looks like it fits every four wheeled BMW ever made.

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Gaucho
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Mon Apr 12, 2021 5:44 pm

Sorry for the late response,
I injured my back a couple of weeks ago and was unable to ride the bike for an extended period. Finally this past weekend I was able to test it properly.
Installation went fine, oil pressure light went off as soon as the engine came to life. No immediate leaks.
After a longer ride everything seems fine. No visible leaks from the sensor or warning messages from the dash.
The aftermarket sensor did the trick for me.
Gaucho

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Chris W
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Mon Apr 12, 2021 8:03 pm

nice to know I have interchangeable parts between my BMW E-30 and my GRiSO!

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Dilliw
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Mon Apr 12, 2021 10:48 pm

I also used the Land Rover aftermarket switch. Only issue is the nut is larger and installs in a tight spot.Was able to get it tightened up however.
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rsmcpheet
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Fri Apr 16, 2021 12:17 am

Talking to my Moto Guzzi dealer here in Denver and they confirmed the part in the catalog is the wrong one. Interested to hear back from the Piaggio rep why this is listing incorrectly. But thanks again for this post otherwise I would've had the wrong switch installed AGAIN with the same oil leak!
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PostSubject: Re: 2009 GRiSO 1200 8V, oil switch replacement   2009 GRiSO 1200 8V, oil switch replacement Icon_minitime1Sat Jul 24, 2021 2:21 am

Here's a list of alternative part-numbers for the Switch.
[You must be registered and logged in to see this image.]

If you want to double-check the specs of what you're buying.

Switch is ‘Normally Closed’ type (NC).

LENGTH ~ 41.25 mm
SPANNER SIZE ~ 24
THREAD ~ M12 x 1,5 mm pitch

SWITCH POINT TO ~ 0.5 bar
SWITCH POINT FROM ~ 0.2 bar

THREAD LENGTH ~ 12 mm

Replaced my original Switch (was leaking through the Body) with the Blue Print version in Oct 2020.

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