12425 - Established June, 2013 - all GRiSO, all the time...
 
HomeFAQRegisterLog in
Share | 
 

 My 11,000 km Stelvio's tappets.

Go down 
AuthorMessage
Pete Roper
GRiSO
GRiSO
avatar

Posts : 5200
Join date : 2013-05-29
Age : 61

PostSubject: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 7:20 pm

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

And the top end had already been apart for the original 'Recall'! Shocked

Pete
Back to top Go down
Phang
Biondino
Biondino
avatar

Posts : 206
Join date : 2013-11-22
Age : 45

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 7:31 pm

that is some serious damage to the tappet in just 11,000km Shocked
Back to top Go down
Pete Roper
GRiSO
GRiSO
avatar

Posts : 5200
Join date : 2013-05-29
Age : 61

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 7:45 pm

Bloody glad it rained and I didn't ride it down from Bundaberg! Very Happy
Back to top Go down
Grisonut
GRiSO
GRiSO
avatar

Posts : 1217
Join date : 2014-01-02

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 8:34 pm

Damn!
You will be able to save the mill you think?
Back to top Go down
Pete Roper
GRiSO
GRiSO
avatar

Posts : 5200
Join date : 2013-05-29
Age : 61

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 9:09 pm

No worries, bottom end is fine. Unlike the 'Stelvio from hell' I've been trying to sort for a bloke for several months! It's fucked and it still has a 'Shop' warranty so I have to take it up to them. That's going to be fun as no doubt they'll tell me it's all my fault........

Good luck with that Cool
Back to top Go down
Phang
Biondino
Biondino
avatar

Posts : 206
Join date : 2013-11-22
Age : 45

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 10:39 pm

I guess your NTX is the one that needs kit A?

I crossed check all the parts diagrams I have for GRiSO 8V and Stelvio a while ago and found some interesting things.

- the shim under the valve spring only appear in Stelvio parts diagrams for year 2009 - 2010, none in GRiSO parts manual over all years

- the quantity of the shims stated in the Stevio manual is 8, apparently all valves are shimmed in the factory for those dimpled heads

I think Guzzi tried to increase the valve springs preload by shimming them, hoping that it would prevent the valve float that hammers/cracking the DLC coating which you found out under the electron microscope, apparently not very successful

back to the question I raised a while ago about the use of new valve spring B013517 in heads that require kit C instead of shim under the intake valves when rollerizing. When Guzzi putting together kit C in early 2014, I believe they already have the new valve spring B013517 in the assembly line for those factory roller engines.

I think there is a reason they throw in 4 shims in kit C instead of 4 valve spring B013517 valve springs and best stick to that

Having said that, I rollerised my mate 2008 Stelvio using B013517 valve spring for the intake valves two years ago, so far so good, it may not matter at all Very Happy
Back to top Go down
Pete Roper
GRiSO
GRiSO
avatar

Posts : 5200
Join date : 2013-05-29
Age : 61

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 10:59 pm

I have absolutely no bloody idea!

My guess is that the later valve springs are supposed to obviate the need for the shims but I really don't know.

Sorry, more later, I'm down the pub and Jude and our mates have just arrived!

Pete
Back to top Go down
Grisodude
Tiradritto
Tiradritto
avatar

Posts : 330
Join date : 2013-07-02
Age : 57

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 11:04 pm

Peter
Down the pub with Jude and mates just arrived.
Enjoy
Harry
Back to top Go down
Phang
Biondino
Biondino
avatar

Posts : 206
Join date : 2013-11-22
Age : 45

PostSubject: Re: My 11,000 km Stelvio's tappets.   Wed Dec 06, 2017 11:08 pm

these guzzi puzzles are good for insomnia nights but not in a pub

please say hi to Jude for me Very Happy
Back to top Go down
 
My 11,000 km Stelvio's tappets.
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
GRiSO ghetto :: The Ghetto :: GRiSOLOGY-
Jump to: