Author Topic: V7 Break-In Service (Oil Change/Sump Spacer/H Bolts/Valves/Clutch Adj etc)  (Read 61258 times)

Offline TimmyTheHog

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Now that the snow has melted, I can finally think about
doing my first service on my 2016 V7II.

Two questions, to wit:

1.  Didn't I read that I have to tighten the head bolts twice, as you would tighten them
to one torque value, and then go back and tighten to the next value? and...

2.  Do I need to change my valve cover gaskets?

TIA,

Jim

I would like to know more about this as well as I am finally coming up to 1000KM service

As for the torquing twice of the head bolt.





So do I

  • loosen one head bolt (out of 4)
  • retorque it to Pre-tightening Torque (25Nm)
  • torque this bolt again to Final Torque value (42Nm)
  • Move on to the 2nd, 3rd & 4th bolts with the same procedure until all bolts are tighten to the Final Tighten Value

or
  • loosen one head bolt (out of 4)
  • retorque it to Pre-tightening Torque (25Nm)
  • loosen 2nd head bolt
  • torque 2nd head bolt to Pre-tighten Torque (25Nm)
  • Move on the 3rd & 4th bolts with the same procedure
  • After all 4 bolts are @ Pre-tighten value (25Nm), then I proceed and tighten all 4 bolts @ final tighten torque value (42Nm)

Sorry if I make this confusing, but would like some guidance. :)
Life isn't WHAT IS at the end.
It is HOW and WHAT you are doing to get there.

03 Honda Shadow Spirit - The Purple Beast (SOLD)
15 Guzz V7 Stone - The Red Chick (SOLD)
18 BMW R1200GS Rallye - The Blue Streak (SOLD)

Currently Bikeless...*cry*

Online Kev m

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Jim (sorry I missed that post) & Tim,

May I refer you to this quote from post #12. Info I posted from GuzziSteve.

Quote
Head  bolts should be backed off 1/8-1/4 turn before re-torque, and I go to 33ftlbs on the 4 big ones and 23ftlbs.  When you back them off you may hear them pop a bit, that is normal. I have seen them leak at 30-32ftlbs.

The reason for cracking off is two fold.

1. Pete Roper says they over torque at the factory.
2. You need a moving fastener to properly measure torque.

Because you're only cracking off and not installing a new gasket for the first time there is no pretorque step. I.E. just cracking off you're not loosening enough to need the pretorque stage.

Just tighten fastener to the proper final torque.

I forget if I did one at a time or cracked all then tightened all. It was probably the latter.

I'm not sure it matters.

Gaskets can usually be reused, especially if you coat them lightly with grease before hand.

Gaskets seem more likely to leak if you don't have a spare handy on the shelf. 😉
« Last Edit: March 29, 2017, 11:59:04 AM by Kev m »
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Offline TimmyTheHog

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AH...

Thanks Kev!

Basically because I am only making sure the torque value is correct on those head bolts and NOT taking the bolt/rod assembly right now, I should not reach below the 25Nm (or 18.5 ftlb) value of the pre-tighten value.

Guess I can check with my torque wrench when the time comes :P

And I noticed you quoted the torque value higher than what Guzzi Manual recommend...Are those bolts okay to be overtighten like that???

Please correct me if I am wrong...getting a bit of butterfly as I normally do not like to touch engine parts but not wanting to spend $500 Canadian just on the services that seems to be simple enough. LOL
Life isn't WHAT IS at the end.
It is HOW and WHAT you are doing to get there.

03 Honda Shadow Spirit - The Purple Beast (SOLD)
15 Guzz V7 Stone - The Red Chick (SOLD)
18 BMW R1200GS Rallye - The Blue Streak (SOLD)

Currently Bikeless...*cry*

Online Kev m

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Well I'm pretty sure from the notes on this thread that I went with 21 ft lbs (28-29 Nm) on the small one and 30 ft lbs (40-41 Nm) on the big ones.

Now GuzziSteve is/was a Guzzi mechanic with a lot of experience so if he says that's what he did I'm sure you're good (assuming nothing has changed).

But if you're like me and want to follow the most current factory manual (I'm assuming that's what you posted) then just go with those values.

Chances are most torque wrenches are off by a foot lbs or two anyway.
« Last Edit: March 29, 2017, 01:50:33 PM by Kev m »
Current Fleet

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11 Duc M696

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Offline TimmyTheHog

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Appreciated and with utmost patient!

Now off to get me a new set of glasses, as I keep on missing key notes between the line... :shocked:
Life isn't WHAT IS at the end.
It is HOW and WHAT you are doing to get there.

03 Honda Shadow Spirit - The Purple Beast (SOLD)
15 Guzz V7 Stone - The Red Chick (SOLD)
18 BMW R1200GS Rallye - The Blue Streak (SOLD)

Currently Bikeless...*cry*

 

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