Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 10:36 am
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Source for "S" size gudgeon pin buttons
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Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 10:50 am
Thats what I have to make mine with. M
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 10:57 am
As far as slipper pistons are concerned, I think its a case of how slipper your pistons are.
You couldn't use a button on something like this
You couldn't use a button on something like this
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 11:07 am
I have 7.5 mm from the "flat" to the bore, and need an extra 1mm as the pin is below flush in the piston
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 11:09 am
Mark, they would be pushing the friendship for Teflon Buttons for sure though with the right grade of Aluminum, you'd be OK 
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 6:35 pm
Use standard type long pins 
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 7:32 pm
Yes Simon, had the same brainwave earlier! Do the rods not survive fully floating when running the pins straight into them without a bronze bush? Was thinking about honing the small ends and putting an oil hole in the top.
My bike survives quite happily at 12,000 rpm plus steel to steel as it were.
My bike survives quite happily at 12,000 rpm plus steel to steel as it were.
Re: Source for "S" size gudgeon pin buttons
Posted: Fri Mar 06, 2015 11:13 pm
That's all I do. 0.0005" to 0.0008" Clearance.wantafaster1 wrote:Do the rods not survive fully floating when running the pins straight into them without a bronze bush?