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12425 - Established June, 2013 - all GRiSO, all the time...
 
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 Oil Pressure Sensor

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beetle
GRiSO Capo
GRiSO Capo
beetle

Posts : 7899
Join date : 2013-09-30

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Sun Aug 18, 2019 1:48 pm


Yep. The right side on mine is slightly misaligned. I've had to replace mine after the left (!) screw got a bit dodgy. My workaround is to lift the tank slightly to allow both screws to engage properly. Once the screws are engaged, I let everything "self align" as I nip up the screws.



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paulbrice
GRiSO Capo
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paulbrice

Posts : 934
Join date : 2015-01-04
Age : 59

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Tue Sep 03, 2019 8:03 am

Just changed my oil pressure sensor to fix oil leak.
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Originally thought it was crankcase grub screw leaking but after looking harder & pulling tank it was clearly the oil sensor.....weirdly, after spending ages getting deep reach 21 mm socket, the sensor was light-finger tight (it's supposed to be 24 nm) there was no washer either...so amazed it's taken 10 years and 36k miles to start leaking.
Thanks Guzzi Cat for the MR Auto link BTW …sadly BMW dealer couldn't find the right sensor despite giving them the same model/year that finds the right one on Mr Auto & Euro parts site ….BMW parts guy said they needed the registration or VIN number of the car to be sure..... So got £10 one from Euro Parts.
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Only issue was BMW one is 23mm and very deep head; so had to tighten it to approx 25 nm torque with mole grips turned using adjustable spanner (not my best engineering moment)...
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Grisocaferacer
Squinternotto
Squinternotto
Grisocaferacer

Posts : 3
Join date : 2019-03-08

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Wed Jan 29, 2020 9:52 am

Hi Guzzi Cat and all, yes I had a similar issue with the oil light coming on at low revs and traffic lights. Oil level is okay so ordered a new sensor. Yes, Ive had the tank off before and yes one of the bolts was stripped and if you replace that bolt and put that in first, it'll strip the other as the holes don't line up properly. 30 sec job takes much care and replacement bolts and wiggling for an hour, yes PITA!

quick release fuel pipe, my arse! Ive had the tank off before but the photos and the tip about removing the fuel pump connector and turning over (no start) are much appreciated and interesting by way of removing fuel pressure. Didn't work tho and was impossible to remove despite gentle wiggling until the red 90 deg fuel pump spigot broke....... Grrrr. so now I have two issues!

1. Broken pipe - fortunately Gutsibits in the UK sell a replacement fuel pipe spigot £27 so I'm now waiting for that. Question? has anyone broken and replaced this? I have removed the fuel pump plate under the tank and removed a grub screw which seems to be holding the spigot in place but it still won't shift, any tips? I will of course be applying some silicon spray to facilitate easier removal next time.

2. Oil pressure sensor - the spade connector was very loose on the unusual pillar type brass connector which may have been the fault but I'm going to install the new sensor sources from Gutsibits. However, no leaks but no crush washer, aluminium or copper. Also replacement part discontinued so new item sent but thread is a different size and now needs an adaptor awaiting delivery Grrrr. Q? the sensor has a single wire and before I removed anything I checked the dash and all lights illuminate during pre start test, but then doesn't now illuminate as expected until start/oil pressure builds and disconnects earth. Now all removed, light is random, with or without the purple wire connected to earth or not. Is this just random interpretation by the dash? wiring is not damaged, I'd hate to think that this is just random electrical issues and not oil pressure at all but on the other hand I don't want to be thrown off of a seized bike. I'v had a 1200 sport 8V before and I never had any of these issues. Frustrating as my Ducati never goes wrong and is ballistic! ....... so why do I still love the GRiSO?
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Pete Roper
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Pete Roper

Posts : 7558
Join date : 2013-05-29
Age : 63

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Wed Jan 29, 2020 6:31 pm

Lots of people break them. I'm not one of them so I've never had to replace one.

With the oil pressure switch there are aftermarket replacements with the correct, coarser, thread. Tridon make one but I can't offhand remember the number.
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Ksavage
Squinternotto
Squinternotto
Ksavage

Posts : 2
Join date : 2020-04-04

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PostSubject: GRiSO Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Sat Apr 04, 2020 8:56 am

What sensor did people use to replace with?  My oil pressure sensor started leaking oil so I ordered up a 978854 from a Guzzi dealer and once it arrived, it does not match the one I have as its too small.  This seems to be a common issue.

I would post a picture but I am not allowed for 7 days...

Does anyone know the solution or where to order a sensor that will work?  

Thanks

Kevin
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Pete Roper
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Pete Roper

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Sat Apr 04, 2020 4:28 pm

It depends on the year of your bike. Early ones with the rectangular plastic top that clips into a fitting like the injector ones on the loom and a coarse thread can be replaced with a Tridon TPS039. If it's one of the ones with a button or pole electrode they come in two types with a coarse or fine thread. There are switches from Tridon with both threads and I think the fine thread one is a TPS026 but I'm not certain.

Best thing to do if it's one of those would be go to a GOOD car parts place and look through the Tridon or equivalent parts book. Take the old switch or make sure you have the thread pitch and you want a type that is normally closed.

I'll see if I can find the Tridon cattledog on line this morning and have a squizz.
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Ksavage
Squinternotto
Squinternotto
Ksavage

Posts : 2
Join date : 2020-04-04

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Sun Apr 05, 2020 5:15 am

The one I have is definitely as you describe with rectangular plastic top. DO you know if anyone sells Tridon in North America? I'm in Canada so that would preferred as all I can find is Australia.
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Pete Roper
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Pete Roper

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PostSubject: Re: Oil Pressure Sensor   Oil Pressure Sensor - Page 2 Icon_minitime1Sun Apr 05, 2020 10:59 am

Someone on another board found one somewhere in NA from memory but I have no idea where, sorry.

Guzzi no longer sell the early switches and devised a sort of horrible lash up with a hexagonal insert into which you are supposed to screw the new type switch. It's an awful solution and often the switch then fouls on the alternator.

If you really have problems let me know and I'll slip one in a baggy for you.

Pete
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