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 Fuel pump regulator

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Pete Roper
Rikrok
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Rikrok
Squinternotto
Squinternotto
Rikrok


Posts : 8
Join date : 2022-02-08

Fuel pump regulator Empty
PostSubject: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 4:25 pm

I have an 08 GRiSO. After changing out the actual pump and filter, I still have no pressure. The pump is running and pumping. The tech I have taken it to says it is the regulator built into the fuel pump assembly. Any one know of any hack before I buy the $800 assembly,,,,, hoping that is the issue?
Thank you
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 9323
Join date : 2013-05-29
Age : 65

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 6:34 pm

The relief valves are known to fail by the spring rusting but it is very rare. I'd pull the pump and double check the hose hasn't blown off. You can also check it simply by immersing it in a bucket of fuel and activating the pump . That will tell you if the pump is pumping and the relief valve is relieving.

If it is the valve?

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For future reference rather than buying the entire pump assembly at whatever obscene cost you can but a pump off the Bay of Fleas for peanuts. Much more sensible than spending a king's ransom!

Oh, and welcome. I hope your GRiSO has been rollerised?
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beetle
GRiSO Capo
GRiSO Capo
beetle


Posts : 9457
Join date : 2013-09-30

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 6:42 pm


Pete Roper wrote:

Oh, and welcome. I hope your GRiSO has been rollerised?



Ahem....1100.


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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi


Posts : 6010
Join date : 2014-03-13
Age : 67

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 7:19 pm

To answer Pete. No! Not needed.
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Pete Roper
GRiSO Capo
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Pete Roper


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Age : 65

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 8:21 pm

Apologies, it was the 2008 year that got me. I don’t think we got any 2V Grisos in 2008.

Also the 1100’s all had the shitty, non submersible hose. Unless it was replaced at the same time as the pump it’s likely blown off again or burst.
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beetle
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beetle


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Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 9:01 pm


Pete Roper wrote:
Unless it was replaced at the same time as the pump it’s likely blown off again or burst.



I insert my thruppence in this slot.








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Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi


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Age : 67

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Mar 11, 2022 9:02 pm

I remember them
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Rikrok
Squinternotto
Squinternotto
Rikrok


Posts : 8
Join date : 2022-02-08

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Sat Mar 12, 2022 8:38 am

Pete Roper wrote:
The relief valves are known to fail by the spring rusting but it is very rare. I'd pull the pump and double check the hose hasn't blown off. You can also check it simply by immersing it in a bucket of fuel and activating the pump . That will tell you if the pump is pumping and the relief valve is relieving.

If it is the valve?

[You must be registered and logged in to see this link.]

For future reference rather than buying the entire pump assembly at whatever obscene cost you can but a pump off the Bay of Fleas for peanuts. Much more sensible than spending a king's ransom!

Oh, and welcome. I hope your GRiSO has been rollerised?


I thinks that it Pete. I have the old one off and going to soak it in a few concoctions first. I was looking for a Bosch or like number on it.
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orngm2
Carlotto
Carlotto
orngm2


Posts : 29
Join date : 2019-01-30

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Apr 08, 2022 12:25 pm

You ever resolve this issue with your GRiSO 1100
I have a 2007 with same issue
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Rikrok
Squinternotto
Squinternotto
Rikrok


Posts : 8
Join date : 2022-02-08

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Apr 08, 2022 2:01 pm

I did. I bought a new fuel regulator. Total fix for the issue.


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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 553
Join date : 2016-04-14

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Fri Apr 08, 2022 2:18 pm

Little over 1/2 price of the other one posted from Conyers, GA
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orngm2
Carlotto
Carlotto
orngm2


Posts : 29
Join date : 2019-01-30

Fuel pump regulator Empty
PostSubject: Re: Fuel pump regulator   Fuel pump regulator Icon_minitime1Sat Apr 09, 2022 5:17 am

Thnx guys
Regulator ordered
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