Crankshaft Assembly Question

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24 Mar 2023 08:49 #881920 by zed1015
Replied by zed1015 on topic Crankshaft Assembly Question

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.
 

AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
kzrider.com/forum/23-for-sale/611992-air-corrector-jets-





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24 Mar 2023 09:01 #881921 by daveo
Replied by daveo on topic Crankshaft Assembly Question

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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24 Mar 2023 09:18 #881922 by Wookie58
Replied by Wookie58 on topic Crankshaft Assembly Question

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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24 Mar 2023 11:13 #881925 by Nessism
Replied by Nessism on topic Crankshaft Assembly Question

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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24 Mar 2023 21:00 - 24 Mar 2023 21:46 #881951 by daveo
Replied by daveo on topic Crankshaft Assembly Question
Found an alternative...



 

1982 KZ1100-A2

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

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24 Mar 2023 21:09 - 25 Mar 2023 06:05 #881952 by daveo
Replied by daveo on topic Crankshaft Assembly Question
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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24 Mar 2023 22:23 - 25 Mar 2023 23:50 #881955 by daveo
Replied by daveo on topic Crankshaft Assembly Question

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



Thanks zed1015 
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1982 KZ1100-A2

Last edit: 25 Mar 2023 23:50 by daveo.
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26 Mar 2023 16:21 - 28 Mar 2023 06:23 #882033 by daveo
Replied by daveo on topic Crankshaft Assembly Question

 

Comments appreciated! 

Happy riding!  


1982 KZ1100-A2

Last edit: 28 Mar 2023 06:23 by daveo.
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29 Apr 2023 10:09 - 29 Apr 2023 10:12 #883954 by Mikaw
Replied by Mikaw on topic Crankshaft Assembly Question
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. 

 






1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.
Last edit: 29 Apr 2023 10:12 by Mikaw. Reason: Photos

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29 Apr 2023 17:16 #883970 by daveo
Replied by daveo on topic Crankshaft Assembly Question
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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30 Apr 2023 07:17 #883987 by Street Fighter LTD
Replied by Street Fighter LTD on topic Crankshaft Assembly Question

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


Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn

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30 Apr 2023 07:47 #883993 by SWest
Replied by SWest on topic Crankshaft Assembly Question
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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