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 Scary engine noise

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wrrhen
Carlotto
Carlotto
wrrhen

Posts : 32
Join date : 2019-10-08
Age : 78

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PostSubject: Scary engine noise   Scary engine noise Icon_minitime1Sat Nov 14, 2020 11:37 am

I took possession of my 2011 1200 rolleriized GRiSO about a year ago. It has 20k miles. Soon after I got it I started it one time and it had a terrible rattling in the engine. I tried revving it slightly thinking it was low oil pressure but nothing changed so I shut it down. 10 minutes later I started it again and all was well ever since then. The oil sump was to proper level and the oil pressure switch seems to be working properly. Today the same thing happened today. Same symptoms, same test, same results. It;s fine now again but it's very scary when it happens. Very expensive sounding. Anybody have any experience with this or ever heard of it? All help greatly appreciated
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper

Posts : 7583
Join date : 2013-05-30
Age : 63

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PostSubject: Re: Scary engine noise   Scary engine noise Icon_minitime1Sat Nov 14, 2020 2:22 pm

Most likely the tensioner plunger taking a while to pump up.

If it hasn't been done yet I'd replace the sump spacer gasket with one of the thicker aftermarket ones, you may find the original shitty one has blown out which lowers both pressure and volume.
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wrrhen
Carlotto
Carlotto
wrrhen

Posts : 32
Join date : 2019-10-08
Age : 78

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PostSubject: Re: Scary engine noise   Scary engine noise Icon_minitime1Sat Nov 14, 2020 10:35 pm

Pete Roper wrote:
Most likely the tensioner plunger taking a while to pump up.

If it hasn't been done yet I'd replace the sump spacer gasket with one of the thicker aftermarket ones, you may find the original shitty one has blown out which lowers both pressure and volume.

Pete, Can you suggest where or who sells this aftermarket gasket?

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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve

Posts : 373
Join date : 2016-04-15

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PostSubject: Re: Scary engine noise   Scary engine noise Icon_minitime1Sat Nov 14, 2020 11:26 pm

Make sure you check hole size, but this is one, thicker green material.

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wrrhen
Carlotto
Carlotto
wrrhen

Posts : 32
Join date : 2019-10-08
Age : 78

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PostSubject: Re: Scary engine noise   Scary engine noise Icon_minitime1Mon Nov 16, 2020 9:22 am

Pete Roper wrote:
Most likely the tensioner plunger taking a while to pump up.
.

Pete,I have a upper and lover gasket coming next week. Is there anything I should or could do about the plunger spring while I have the pan off. I'm not really familiar with the oiling system 'til I see in there. TIA
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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi

Posts : 4494
Join date : 2014-03-14
Age : 66

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PostSubject: Re: Scary engine noise   Scary engine noise Icon_minitime1Mon Nov 16, 2020 9:30 am

Plunger spring is at the top of the motor. Just replace both gaskets, refill with oil and you should be good to go. See if the original top sump gasket has a piece missing as you disassemble. There are a few bolts around the oil filters (they live in the dark) that also needs to be found and removed to get the sump off, aside from the ones around the perimeter.

From memory, there are 4 bolts holding the spacer plate on, after the sump comes off. Go slow and careful - should take around 30-40 minutes the first time.
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