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...
 
HomeLatest imagesRegisterLog in
 

 Crack or casting marks?

Go down 
+4
sidrat
Phang
Pete Roper
nblades
8 posters
AuthorMessage
nblades
Grignapoco
Grignapoco
nblades


Posts : 115
Join date : 2017-09-20
Age : 46

Crack or casting marks? Empty
PostSubject: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sat Dec 09, 2017 7:33 pm

I recently took my headers off to polish them, and noticed this line in the head that looks a bit like a crack. It could be just a mark from production cast molds. I hope it is. Anyone seen these lines before. Look close at the divider between the two exhaust valves in my picture and you'll see the line. Both heads are the same.[You must be registered and logged in to see this image.]

My bike is stock, except for rollers, and has 6500 km.
Back to top Go down
Guest
Guest
avatar



Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sat Dec 09, 2017 11:39 pm

Are they left and right heads, looks like 2 posts of the same photo?

My vote casting mark.
Back to top Go down
Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 9467
Join date : 2013-05-29
Age : 65

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sat Dec 09, 2017 11:47 pm

STOP LOOKING FOR PROBLEMS!!!

Very Happy
Back to top Go down
Phang
Biondino
Biondino
Phang


Posts : 214
Join date : 2013-11-22
Age : 50

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 12:22 am

the is a cooling oil passage right behind the Ridge

if it crack through, you will know it Very Happy

[You must be registered and logged in to see this image.]
Back to top Go down
nblades
Grignapoco
Grignapoco
nblades


Posts : 115
Join date : 2017-09-20
Age : 46

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 6:02 am

ghezzi wrote:
Are they left and right heads, looks like 2 posts of the same photo?

My vote casting mark.

Not sure why I posted two of the same photo? But the left and right look the same. Probably nothing to worry about. Most likely just casting marks.
Back to top Go down
nblades
Grignapoco
Grignapoco
nblades


Posts : 115
Join date : 2017-09-20
Age : 46

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 6:04 am

Pete Roper wrote:
STOP LOOKING FOR PROBLEMS!!!

Very Happy

Can't help myself, I'm trained to look for issues on aircraft all day. I'm gonna bolt up those headers and just ride!
Back to top Go down
sidrat
GRiSO Capo
GRiSO Capo
sidrat


Posts : 1657
Join date : 2014-09-22

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 7:54 am

^^^^^^^that is the right thing to do ^^^^^^^^^
Back to top Go down
GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 579
Join date : 2016-04-14

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 8:39 am

Hell, I would have picked at it, looks like build-up that has flaked off not a crack.
Back to top Go down
Papa Lazarou
GRiSO Capo
GRiSO Capo
Papa Lazarou


Posts : 826
Join date : 2014-10-07
Age : 68

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 9:14 am

Definitely cracked. The bike is scrap. Send it to me. Laughing
Back to top Go down
waterbottle
GRiSO Capo
GRiSO Capo
waterbottle


Posts : 1785
Join date : 2015-02-02
Age : 61

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 11:19 am

It's a casting line, Both heads are the same. It wont crack there either, I've tried Laughing
Back to top Go down
Papa Lazarou
GRiSO Capo
GRiSO Capo
Papa Lazarou


Posts : 826
Join date : 2014-10-07
Age : 68

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 12:05 pm

waterbottle wrote:
It's a casting line, Both heads are the same. It wont crack there either, I've tried Laughing  

shhhh
Back to top Go down
nblades
Grignapoco
Grignapoco
nblades


Posts : 115
Join date : 2017-09-20
Age : 46

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Sun Dec 10, 2017 2:42 pm

Here's the reason I was poking around in the exhaust area of the heads. The one header is done and ready for install. The other still needs to be polished. I'm using an orbital sander with a piece of super fine scotchbrite pad, and a product called Blue Job.[You must be registered and logged in to see this image.]
Back to top Go down
LBC Tenni
GRiSO Capo
GRiSO Capo
LBC Tenni


Posts : 956
Join date : 2014-06-05

Crack or casting marks? Empty
PostSubject: Re: Crack or casting marks?   Crack or casting marks? Icon_minitime1Mon Dec 11, 2017 4:11 pm

Nice shine Blades! Mine could use that treatment, but I'm too lazy, so I'm running with the "warmth" of patina.
Back to top Go down
 
Crack or casting marks?
Back to top 
Page 1 of 1
 Similar topics
-
» ahhh... admitting one's mistakes... stripped thread in casting

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