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Piston Grades

Posted: Sat Feb 19, 2011 11:43 am
by coaster
Hi, can anyone explain the grading applied to TS1 pistons, they are supplied as either A, B, C, D grade but no explanation of what that means on the MB site. Rayspeed site seems to be down at the moment :?

Re: Piston Grades

Posted: Sat Feb 19, 2011 11:53 am
by bazman
Very slight increments in size A being the smallest and D the largest, basically say if you have a "B" grade barrel you'd match it with the same piston , unless you're barrel has a lot miles on and is starting to become worn a "C" grade piston would be used to take up some of the slack!

Re: Piston Grades

Posted: Sat Feb 19, 2011 12:09 pm
by coaster
bazman wrote:Very slight increments in size A being the smallest and D the largest, basically say if you have a "B" grade barrel you'd match it with the same piston , unless you're barrel has a lot miles on and is starting to become worn a "C" grade piston would be used to take up some of the slack!
Ah, so we're talking slight oversizes to match to the nicasyl linning rather than the 1st, 2nd, 3ed oversizes for normal iron bores?

Cheers

Colin