Fully floating pistons - what are they?
Discussion
I just purchased a brand new mk3.5 MX-5, and this is part of the spiel from a website I am looking at:
http://www.autoincar.com/2009-mazda-mx-5-minorchange said:
The crucial 500 rpm increase in the rev limit is enabled by greater precision in the engine, namely: a forged crankshaft (this ensures the required rigidity at high engine speeds), fully floating pistons and newly designed valve springs.
What are 'fully floating pistons'?And the benefit of fully floating is that if the pin seizes in either the piston or rod the piston won't snatch in the bore as it can still rotate Downside could be circlips coming out if they weren't fitted correctly. I like fully floating for high performance applications and a pressed pin for the road.
Boosted LS1 said:
And the benefit of fully floating is that if the pin seizes in either the piston or rod the piston won't snatch in the bore as it can still rotate Downside could be circlips coming out if they weren't fitted correctly. I like fully floating for high performance applications and a pressed pin for the road.
How often do gudgeon pins sieze in the rod?I'd think the advantage of a fully floating piston is the gudgeon pin load is spread across 3 bearings (1 in the conecting rod, 1 in each side of the piston), instead of just the 1 in the con-rod.
Edited by TallPaul on Saturday 12th June 21:32
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