nothing to do with sex in any way shape or form, but does anyone know what the material is that little ends are made up from for floating pins ? i.e cosworth ones ?

i know they have phosphur bronze in them but there are other materialsm

and my next question, do we know anyone who makes them to certain specs . i.e i want an O.D of xx.xx and an I.D of xx.xx ?

cheers

 

I was just going to say phospor bronze too.

Any engineering company worth their salt will be able to machine them to the spec you require.

 

The ones I use in my Arrow rods is berrilum.

Mark

 

ive got phospur bronze bar but was wondering on its strength when in say a 3mm wall thickness,

Mark, i cant find any berrillium bar to even start making them out of that, might as well be unobtanium,

what about titanium ?

any thoughts

 

Mark,

When I got all my engine bits together, I realise my pistons were designed to be fully floating as opposed the standard CVH semi floating. I sent the rods and a gudgeon pin back to Farndon and they machined out the rod and inserted a little end bush machined to suit my gudeon pins. Might be worth speaking to them about sorting you some out?

Something I am going to have to do again as I have fucked at least 1 of the rods up.

 

Most engineers will shit themselfs at the thought of machining that

3mm wall section sounds a lot to be honest ?

Mark

 

im guessing at the 3mm wall but wont be far off, im waiting for a rod so i can measure a std cossie rod's small end I.D, the pin is 22mm i want to use, the std cossie pin is 24mm so may be 2mm wall if the std is 1mm wall (usually about 1mm)

how does titanium cope ive got a large ish stash i could have a go at machining up.

 

Berillium is highy toxic

Even touching it can kill you in extreme cases !

 

is that not in liquid form ? dont they use that in x-rays for blood flow and things

 

AFAIK titanium is not much good as a bearing surface as it picks up very easily

If you are only using the new material to make the little end smaller you are not taking away any strength from the rod (the 3mm bit made me think you were opening the rods out)
Aluminium bronze is another alternative ?

Mark

 

no not removing the rod at all, just to sleeve the gudgeon pin size down 2mm from std cosworth pin size,

 

Contact fsrndon and see if they can sell you blanks instead of machined little ends