Quote:
Originally Posted by kerry
So the argument is that the piston 'floats' after it reaches a certain pressure, its stroke being substantially reduced by the effect of the vacuum on the rebound pressure of the spring?
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Since I started this thread I guess I’d better stick around to see it out!
Not sure what you are getting at when you say “floats” ?? If the spring strength was 90lb and the piston (vac) pull was 45lb and the engine was turned off at that point the roller would be stationary at half stroke (in equilibrium). At half stroke the spring can only pull 45lb – it can’t pull the piston back any further as that would increase the piston’s vacuum and pull, it’s not floating it is locked there and going nowhere. Likewise when the pistons vacuum pull reaches 90lb and the spring fully compressed pulls 90lb the piston is locked fully forward (Parked).
06-25-2012, 06:55 AM
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