Crankshaft Assembly Question

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Re: Crankshaft Assembly Question

24 Mar 2023 08:49
#881920
Optical Rod Indexing.  Any thoughts-opinions regarding efficacy?



Beats locating a proper18mm steel rod, and provided purpose for some old Lego's.




 
Not at all accurate enough and wouldn't show up any rod twist etc.
 
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Re: Crankshaft Assembly Question

24 Mar 2023 09:01
#881921
Not at all accurate enough and wouldn't show up any rod twist etc.

 

Anybody have a 18mm rod indexing rod available to borrow/rent?

1982 KZ1100-A2

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Re: Crankshaft Assembly Question

24 Mar 2023 09:18
#881922
Not at all accurate enough and wouldn't show up any rod twist etc.


 

Anybody have a 18mm rod indexing rod available to borrow/rent?

Not wanting to "bring things down" but given that you appear to have already made the purchase and it has been welded, are you not "shutting the stable door after the horse has bolted" 
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Re: Crankshaft Assembly Question

24 Mar 2023 11:13
#881925
Not at all accurate enough and wouldn't show up any rod twist etc.



 

Anybody have a 18mm rod indexing rod available to borrow/rent?

Not wanting to "bring things down" but given that you appear to have already made the purchase and it has been welded, are you not "shutting the stable door after the horse has bolted" 

Agree.  Ignorance is bliss.

If forced, though, McMaster sells 18mm rods. You have to pay attention to straightness, because some are more accurate than others.
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Re: Crankshaft Assembly Question

24 Mar 2023 21:00 - 24 Mar 2023 21:46
#881951
Found an alternative...



 
1982 KZ1100-A2

Last edit: 24 Mar 2023 21:46 by daveo.

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Re: Crankshaft Assembly Question

24 Mar 2023 21:09 - 25 Mar 2023 06:05
#881952
McMaster Carr was out of stock last check.
17.99 mm O.D. tube spins around smoothly by hand with no perceived play.

 




1982 KZ1100-A2

Last edit: 25 Mar 2023 06:05 by daveo.
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Re: Crankshaft Assembly Question

24 Mar 2023 22:23 - 25 Mar 2023 23:50
#881955
Not at all accurate enough and wouldn't show up any rod twist etc.





 
Anybody have a 18mm rod indexing rod available to borrow/rent?






 
Not wanting to "bring things down" but given that you appear to have already made the purchase and it has been welded, are you not "shutting the stable door after the horse has bolted" 

Agree.  Ignorance is bliss.

If forced, though, McMaster sells 18mm rods. You have to pay attention to straightness, because some are more accurate than others.






 
As I understand, a rod is straight if it rolls smoothly on a flat surface without bumping.



Brief video:
photos.app.goo.gl/QDYuBiiUaVW7VGza9



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1982 KZ1100-A2

Last edit: 25 Mar 2023 23:50 by daveo.
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Re: Crankshaft Assembly Question

26 Mar 2023 16:21 - 28 Mar 2023 06:23
#882033
 
Comments appreciated! 

Happy riding!  

1982 KZ1100-A2

Last edit: 28 Mar 2023 06:23 by daveo.
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Re: Crankshaft Assembly Question

29 Apr 2023 10:09 - 29 Apr 2023 10:12
#883954
Daveo, we are about to jump down a welded crank rabbit hole. The CSR I recently bought had a #1 piston blown, I was hoping I could save the bottom end. I pulled it apart this week and not sure if I’m happy or cursed. The crank is welded. I’m starting the process to find out if a welded crank can be repaired. #1 rod is junk. 

 





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1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
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Last edit: 29 Apr 2023 10:12 by Mikaw. Reason: Photos

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Re: Crankshaft Assembly Question

29 Apr 2023 17:16
#883970
I think that crank is toast, and replacement is the only reasonanble option.
Once welded there may be no going back.

1982 KZ1100-A2

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Re: Crankshaft Assembly Question

30 Apr 2023 07:17
#883987
I think that crank is toast, and replacement is the only reasonanble option.
Once welded there may be no going back.

Falicon  took mine apart with no extra fees and did the Supercrank thing to it .
Of course this is ancient history. Dont know if anyone today would be willing to do it .
DD

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Re: Crankshaft Assembly Question

30 Apr 2023 07:47
#883993
Gardner Racing Concepts  is still doing them. Looks like they do good work. 


Page · Motorcycle Repair Shop

1373 Bangor Rd, Ellsworth, ME, United States, Maine

+1 207-664-0377

grc.cranks@yahoo.com

Always open

Price Range · $$$
 

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Steve

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