Hi guys. can anyone tell me where i can buy a set of new pins from? i stripped my pistons down today ready to fit new small end bushes/bearings. and the pins have wear which is obvious seeing as they've probally been in there since the day it was built. anyway, i cant find anyone who sells them individually.

Rich.

 

You can't buy them seperately. Good 2nd hand is your only option or alternatively buy a complete new set of pistons as you'll be needing new rings anyway!

 

are you sure they are worn as they are larger at the piston end than the centre /middle
i

 

can you only get mahle pins in a full piston set and are the pins mahle specific? what sort of hp are mahle good for? i know the price isnt a million miles away from good forged pistons if buying new? not trying to hijack, im intrested also. cheers

 

Mahle are the best choice for a road car engine due to the long life of the ring pack and quietness. There is'nt really a power limit with them, but they are prone to cracking around the little end boss above 8500rpm. (assuming std stroke, the max safe rpm comes down as stroke goes up)

The mahle pin has a profiled shape, being barrel shaped inside the actual little end bush, then slightly thinner either side of centre and then fatter again inside the piston. Allthough this is unique to the Mahle piston you can still use Cosworth 24mm pins with the Mahle piston, though you'll need to check length as I have had to shorten cosworth pins in the past to use in Mahle pistons.

The pins are only available as a complete piston set which comes with piston, rings pin and C-clips.

 

do you think it'll be safe with just a new set of bushes then??

 

Safe yes, quiet no if they are worn.

What I will say is machining new little end bushes accurately is actually very difficult to do correctly so be very carefull!