GRiSO ghetto
Would you like to react to this message? Create an account in a few clicks or log in to continue.


12425 - Established June, 2013 - all GRiSO, all the time...
 
HomeRegisterLog in

 

 Honing barrels

Go down 
3 posters
AuthorMessage
BrianD
Don Abbondio
Don Abbondio
BrianD


Posts : 155
Join date : 2015-12-19

Honing barrels Empty
PostSubject: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 4:15 am

A bit of a numpty question

I was wondering if the 1200's have a coated barrel liner (like the old 850 T3) or steel,  and if you can hone both types to glaze bust for new rings to be put in?

thanks
Back to top Go down
paulbrice
GRiSO Capo
GRiSO Capo
paulbrice


Posts : 1453
Join date : 2015-01-04
Age : 63

Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 6:51 am

They are all Nigusil (Nikasil the Guzzi way).....as I understand it you can 'glaze-bust' them with a flexi-hone at around 240 grit AO ...only know this because my engine burns a fair amount of oil & one day (if I get around to it - I DO have replacement ring set ready) I'll likely go that way.
Back to top Go down
BrianD
Don Abbondio
Don Abbondio
BrianD


Posts : 155
Join date : 2015-12-19

Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 8:39 am

Thanks Paul, useful to know
Back to top Go down
Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10299
Join date : 2013-05-29
Age : 67

Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 12:33 pm

Generally no need to hone but if you're re-ringing you can give a few passes with a boron ball hone if you wish.

Paul, are you sure your engine is burning oil? You don't just keep topping it up to the 'Full' mark on the stick? If you do that it'll just pump it out.
Back to top Go down
paulbrice
GRiSO Capo
GRiSO Capo
paulbrice


Posts : 1453
Join date : 2015-01-04
Age : 63

Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 1:07 pm

No, always at or even below min..... it's always burned oil (piston crowns were clearly oily when I rollerised it), & sometimes can smell burned ester oil when I pull up at lights.... Initially I thought could be 'worn' due to two failed sets of flat tappets in it's early life BUT I checked bore & didn't seem too polished - valve guides checked & replaced valve oil seals when I rollerised as well.

hasn't affected it in any other way & it's managable level of burning, so new ring set & head gaskets just sitting there waiting until I feel like doing it.
Back to top Go down
Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10299
Join date : 2013-05-29
Age : 67

Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1Mon Feb 12, 2024 1:12 pm

Weird. It'll be interesting to see what the old rings look like.
Back to top Go down
Sponsored content





Honing barrels Empty
PostSubject: Re: Honing barrels   Honing barrels Icon_minitime1

Back to top Go down
 
Honing barrels
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: