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 GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??

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MotoJezek
Carlotto
Carlotto
MotoJezek


Posts : 41
Join date : 2017-10-12

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 3:35 pm

The last of the 8vs had an updated head torque sequence that involves one or two 90 degree turns, but I can't find where I sourced the figures from and can't find where I wrote it down.....anyone know where it can be found? The only online manual I can find has the 11 to 35 ft lbs value....
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beetle
GRiSO Capo
GRiSO Capo
beetle


Posts : 10047
Join date : 2013-09-30

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 3:47 pm

My GRiSO service manual has it.


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In GRiSO we trust!
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https://www.griso.org
MotoJezek
Carlotto
Carlotto
MotoJezek


Posts : 41
Join date : 2017-10-12

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 4:06 pm

Thanks!!! Is there a link to that manual anywhere online? Looks like mine is an old version. My bike is (well, was and about to be again) running one of your maps with the Mistral. Nice to buy one with it already installed.
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Pete Roper
GRiSO Capo
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Pete Roper


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Age : 67

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 4:33 pm

I always stick with the simple 30ft/lbs. nothing has changed in the engine design that would warrant such a change. Nothing ever leaks... ( Shrug.)
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MotoJezek
Carlotto
Carlotto
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Posts : 41
Join date : 2017-10-12

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 4:42 pm

I thought the reason was a change in head gasket material??
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Pete Roper
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GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 4:58 pm

Nope.
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beetle
GRiSO Capo
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beetle


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GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Sun Aug 05, 2018 5:18 pm

My service manual is the original version.

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So if they changed it, it was the later releases.

Download it from my server: LINKY





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[You must be registered and logged in to see this image.]
.
In GRiSO we trust!
.
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https://www.griso.org
MotoJezek
Carlotto
Carlotto
MotoJezek


Posts : 41
Join date : 2017-10-12

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Tue Aug 07, 2018 7:28 pm

Weird, the version I have is from 2008. Thanks for the link!
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BMR
Montanarolo
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BMR


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Join date : 2022-07-19

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Tue Apr 18, 2023 6:20 pm

I have a 2016 (I assuming post rolerized edition) of the GRiSO 1200SE. I would like to check the torques on the head tightening nuts, but I notice the manual has two values:
"Engine oil pretightening = 11 lb.ft
then
Final tightening 31 lb.ft

There is also talk of some sort of rotational 90 degree torque device needed on the forums... I have a standard torque wrench. no good??

Thanks for any help.
BMR
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Pete Roper
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GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Tue Apr 18, 2023 9:12 pm

See my other reply but yes, two stages. You don't need an RTG

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BMR
Montanarolo
Montanarolo
BMR


Posts : 23
Join date : 2022-07-19

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Tue Apr 18, 2023 9:25 pm

Pete Roper wrote:
See my other reply but yes, two stages. You don't need an RTG

Thanks, Pete.
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Gootzibird13
Biondino
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GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Wed Apr 19, 2023 4:14 pm

Pete Roper wrote:
See my other reply but yes, two stages. You don't need an RTG

Hello Pete,

Tell me what you think Pete. Now just like Mark's manual mine states +90 +90 torque spec. I in fact used that instruction for my left head after cam box removal. It has never leaked oil and compression seems perfect in cylinder. So is it just so close to your method by chance seated nut torque value will fly? Or should I re torque according to your method? This was done early on in ownership of this machine. And I wasn't aware how imperative it is to use the forum content for more precise information...
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Pete Roper
GRiSO Capo
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Pete Roper


Posts : 10420
Join date : 2013-05-29
Age : 67

GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1Wed Apr 19, 2023 8:39 pm

The 8V's, (And most of the 2V's.) use laminated steel head gaskets and a non- crushable base gasket, dunno what it's made of. Thing is though that neither ever need re-torqueing because, unlike earlier kingerlite gaskets, they don't collapse as they heat cycle.

Stick 'em om when you build the motor then never touch them again! This is why sudden leaks are so very unlikely to be gasket related.
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GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Empty
PostSubject: Re: GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!??   GRiSO 8V HEAD TORQUE VALUE-11FT. LBS+ 90 DEGREES!?? Icon_minitime1

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