Author Topic: Anyone Recognize these pistons???  (Read 1014 times)

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Offline 750

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Anyone Recognize these pistons???
« on: March 19, 2011, 07:40:24 PM »
Picks Here On Photo Bucket:
http://s1222.photobucket.com/albums/dd484/H0NDA750/Piston%20Picks/

They are 836 pistons, but I have no clue who made them, where to get the wrist pin clips, or weather they are even decent pistons? I got them with bored jugs.  PO said that he built the motor and only ran it one time before he dissembled it (yea right :D) to sell the parts figuring he'd get more that way.  Anyway, I don't even know if it's the best decision to use them for the motor I'm building. Anyone know what I have?? 
Thanks for any help.

Offline Big Jay

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Re: Anyone Recognize these pistons???
« Reply #1 on: March 19, 2011, 08:29:34 PM »
That's a Wiseco K836. We have all the parts for them.

Jay

Offline 754

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Re: Anyone Recognize these pistons???
« Reply #2 on: March 19, 2011, 08:30:22 PM »
 Man how many pictures can you take without showing the side.. cant tell anything off what I saw in that dozen, and I am not looking again..
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Offline 750

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Re: Anyone Recognize these pistons???
« Reply #3 on: March 20, 2011, 03:39:24 AM »
Man how many pictures can you take without showing the side.. cant tell anything off what I saw in that dozen, and I am not looking again..

Sorry to have wasted your time 754.  I didn't realize the skirts were the important details.  I was trying to get the tiny emblems and the numbers.  Next time I'll try and be more thorough.  Thanks for looking anyway.  Have a great day ;D

Offline 750

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Re: Anyone Recognize these pistons???
« Reply #4 on: March 20, 2011, 03:47:31 AM »
That's a Wiseco K836. We have all the parts for them.

Jay

Thanks Jay!!!  I don't know what it would cost, how to specify the vintage, and I can't find it on your site, but I need new wrist pin retainers and wrist pins.  I'll shoot you a call Mon.  Thanks Again.  Really, I mean that.  What a huge help ;D

Offline Terry in Australia

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Re: Anyone Recognize these pistons???
« Reply #5 on: March 20, 2011, 04:58:28 AM »
Yep, those are Wiseco's, I've got some on my bench right now, and they're identical. Looks like you might need new wrist pins mate, it looks like their last bike had lubrication issues in it's conrod's little end bearings? Cheers, Terry. ;D
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Offline 750

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Re: Anyone Recognize these pistons???
« Reply #6 on: March 20, 2011, 06:49:41 AM »
Yep, those are Wiseco's, I've got some on my bench right now, and they're identical. Looks like you might need new wrist pins mate, it looks like their last bike had lubrication issues in it's conrod's little end bearings? Cheers, Terry. ;D
Thanks for the info Terry.  Ill replace the wrist pins and the wrist pin retainers.  Jay says he's got parts, so I will call him Mon.

Offline 754

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Re: Anyone Recognize these pistons???
« Reply #7 on: March 20, 2011, 10:15:53 AM »
 I am running a very old computer so it took like a good 10 minutes to get the page up, so I did not click to expand any of the pics.
 Sometimes the skirts or sides are quite distinctive, either oil grooves on the sides or, some lightening machining around the wrist pin area.

 You may want to check the size/clearance , sounds like it either was not getting lube or got quite hot.
Maker of the WELDLESS 750 Frame Kit
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Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way

Offline 750

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Re: Anyone Recognize these pistons???
« Reply #8 on: March 20, 2011, 03:49:06 PM »
Thanks 754.  Any advice on what to look for??  Measurements??  I'm a tool maker by trade, so I know my way around a mike, and about any measuring tool that exists in my trade, but I am not an engine builder.  I wish I were, you guys see things with your eyes, I need a measuring tool to tell me the story.
Thanks Again
Tom

Offline MCRider

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Re: Anyone Recognize these pistons???
« Reply #9 on: March 20, 2011, 03:55:31 PM »
The clips should be OEM.  OCICBW  But Jay would have them anyway.
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Offline 754

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Re: Anyone Recognize these pistons???
« Reply #10 on: March 20, 2011, 08:21:34 PM »
 If you can get a 4 thou feeler guage between piston and wall, I would start measuring..
Maker of the WELDLESS 750 Frame Kit
dodogas99@gmail.com
Kelowna B.C.       Canada

My next bike will be a ..ANFOB.....

It's All part of the ADVENTURE...

73 836cc.. Green, had it for 3 decades!!
Lost quite a few CB 750's along the way