Author Topic: New wrist pins and teflon buttons.  (Read 1732 times)

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Offline dragracer

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New wrist pins and teflon buttons.
« on: June 10, 2017, 07:14:28 PM »
Alright, so not to step on Jays' rod thread I started a new one for the subject topic.

Any clues where can I get brand new wrist pins for a set of 72mm pistons and a  new set of Teflon buttons??  At a minimum I will need a set of buttons as the wrist pins in this used set are tapered and l feel comfortable in reusing them. According to my calculations the buttons need to be approximately 8mm long if I keep the used pins.

Offline cbr954

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Re: New wrist pins and teflon buttons.
« Reply #1 on: June 10, 2017, 07:22:41 PM »
Interested as well. 
03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.

Offline Bill/BentON Racing

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Re: New wrist pins and teflon buttons.
« Reply #2 on: June 10, 2017, 07:54:07 PM »
LMAO,  I felt comfortable too.....now you going to put in used ones.....I have a diaper for you. Run new tapered ltwt ones, I may have a set, I'll check,  don't want to see you get hurt bro.

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« Last Edit: June 10, 2017, 08:02:01 PM by Bill/BentON Racing »
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Offline dragracer

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Re: New wrist pins and teflon buttons.
« Reply #3 on: June 10, 2017, 10:21:22 PM »
Bill, I do need the parts but wouldn't feel right expecting you to give up a set you may need for yourself. 

Offline Medyo Bastos

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New wrist pins and teflon buttons.
« Reply #4 on: June 11, 2017, 04:35:44 AM »
you sure you got the right pins for buttons Frankie? You do know they are shorter???




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« Last Edit: June 11, 2017, 04:37:48 AM by Medyo Bastos »

Offline dragracer

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Re: New wrist pins and teflon buttons.
« Reply #5 on: June 11, 2017, 09:53:24 AM »
you sure you got the right pins for buttons Frankie? You do know they are shorter???




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Hmm, so you have an extra set also??? Maybe between you and Bill, I can buy a set for this engine I'm about to build.

Offline dragracer

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Re: New wrist pins and teflon buttons.
« Reply #6 on: June 11, 2017, 01:48:00 PM »
When I buy buttons for roller bearing engines, the normal process is to measure the pin length, then the piston size. Subtract the numbers and divide by 2. Once i determine that number, MTC is where I normally source my buttons. The problem right now is they have no listing on their website for 15mm buttons. I'll call them this week. Might be contacting you it Bill afterwards. 😞

Offline cbr954

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Re: New wrist pins and teflon buttons.
« Reply #7 on: June 11, 2017, 02:34:52 PM »
Let me know if MTC has any buttons, I would like a couple spares.
03 CBR954RR, 72 750 chopper(970cc
F2 head), 2017 CRF450R, 2001 CR250R, 72 CB500, 79 XR250, 04 CRF50,70's soon to be rebuilt cb750 drag bike.