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 Over Heating

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austin_22
Carlotto
Carlotto


Posts : 47
Join date : 2014-08-12

PostSubject: Over Heating   Tue Aug 25, 2015 6:23 pm

With about 9k on my '13 GRiSO, I am now experiencing high engine temps at average weather conditions. San Diego is about 70F in the morning and can be as high as 90F in the afternoon. Why would I start getting oil temp warnings at 7.5k miles??? when I didn't before? I had the 6k tune up done at about 6.8k. I checked the oil, plenty of it, clean, and was 50 weight vice 60, but I wouldn't think that would matter. Any history here??? As soon as I rev the engine or start moving, light goes out. My daily commute is 80% highway 20% city.
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ghezzi
Fra Cristoforo
Fra Cristoforo


Posts : 1692
Join date : 2014-05-22
Age : 59

PostSubject: Re: Over Heating   Tue Aug 25, 2015 6:39 pm

What exactly are you getting on the dashboard?
An oil temperature reading (ie. 240*F) or a red light?
You may be experiencing "low" oil pressure, the sensor itself is notorious for failure but best be sure and take it back to the shop.
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Pete Roper
GRiSO
GRiSO


Posts : 3767
Join date : 2013-05-29
Age : 59

PostSubject: Re: Over Heating   Tue Aug 25, 2015 6:49 pm

There is no oil temperature readout on the dash.

Go into the menu, go to diagnostics, it will ask you for the service code 12425, scroll through the next menu to 'Dashboard Errors' there are two pages, on the second page errors 7 & 8 refer to oil pressure. Chances are at least one of them will be active or memorised.

In all likelihood it is simply a dodgy pressure sensor but the 10/60 wt, full ester synthetic is specified for a reason. If your shop is sticking in a mineral 20/50 it will be damaging your engine. If they don't understand that or why I suggest you find another shop.

Pete
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austin_22
Carlotto
Carlotto


Posts : 47
Join date : 2014-08-12

PostSubject: Re: Over Heating   Tue Aug 25, 2015 9:10 pm

I'm getting a red "Oil" light. I was not happy about the 20/50 oil, so I think I will take it back in and demand better. It may very well be a pressure problem. Thanks for the feedback. I will go through the error codes and see what it says, hadn't thought of that at all. Thanks!!!!!
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passator cortese
Montanarolo
Montanarolo


Posts : 19
Join date : 2014-03-03

PostSubject: Re: Over Heating   Tue Aug 25, 2015 10:38 pm

The red oil light on the dashboard is not for temperature but for oil pressure like you said.
and it's supposed to be switched-on when there is a serious problem at the engine, but as Pete Roper said most of the time is the oil bulb failure.
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Pete Roper
GRiSO
GRiSO


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PostSubject: Re: Over Heating   Tue Aug 25, 2015 11:52 pm

No, not bulb, which is in fact an LED, but the sender that is screwed into the block.

Pete
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passator cortese
Montanarolo
Montanarolo


Posts : 19
Join date : 2014-03-03

PostSubject: Re: Over Heating   Wed Aug 26, 2015 11:16 am

yes you are right, I generalized
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Guzzi Cat
Grignapoco
Grignapoco


Posts : 178
Join date : 2014-09-02

PostSubject: Re: Over Heating   Wed Aug 26, 2015 2:04 pm

austin_22 wrote:
I'm getting a red "Oil" light. I was not happy about the 20/50 oil, so I think I will take it back in and demand better. It may very well be a pressure problem. Thanks for the feedback. I will go through the error codes and see what it says, hadn't thought of that at all. Thanks!!!!!

If the Bike Shop is not using 10w 60 fully synthetic oil for the modern Guzzi, I'd be very reluctant to have them work on the bike!
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Grisonut
GRiSO
GRiSO


Posts : 1015
Join date : 2014-01-02

PostSubject: Re: Over Heating   Wed Aug 26, 2015 6:11 pm

I agree with Guzzi Cat...
I wouldn't let that shop even take a picture of my bike! Dumb asses...
It pays to do the services yourself, it's not that hard.
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Birch
Grignapoco
Grignapoco


Posts : 119
Join date : 2014-04-17

PostSubject: Re: Over Heating   Wed Aug 26, 2015 6:38 pm

I had this happen to me about a month ago. It was reading 102f on my ambient temp gauge and I was stuck in a traffic jam. As soon as traffic moved along, the error cleared.
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austin_22
Carlotto
Carlotto


Posts : 47
Join date : 2014-08-12

PostSubject: Re: Over Heating   Thu Aug 27, 2015 12:53 pm

So call me crazy, but no doubt there is relationship between temperature and pressure. As temp rises, pressure changes due to viscosity change (or more accurately the boiling point of the oil). So, the red LED "Oil" indicator is the pressure indicator??? Yes, then I have to assume the engine is getting too hot and the issue may very well be 20/50 oil. I have noticed on these forums, lots of complaints about shops not buying the 10/60W due to price. What a crock. I am now changing my own oil. We shall see if this changes things. Thanks all for the feedback.
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Pete Roper
GRiSO
GRiSO


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Age : 59

PostSubject: Re: Over Heating   Thu Aug 27, 2015 2:03 pm

The oil won't boil.

In all honesty the viscosity is not the vital issue. It's the nature of a fully synthetic ester based oil. It is able to stand much higher temperatures, albeit briefly, than a mineral oil. Generally the 8V is grossly over-cooled.

Swap out the oil pressure sensor. They cost pennies and are notorious. The problem will probably vanish, BUT, make sure the oil does meet the specifications.

Pete
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PostSubject: Re: Over Heating   Today at 8:35 pm

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