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I've been reading this thread with interest and confusion. Are the balls in the squirters:
-a check valve to eliminate back pressure?
-a valve that allows oil flow through the squirter above a certain pressure?
-an object to shape the spray?
If they are a check valve, then the sprayer is probably still working as intended cooling and lubing the back of the pistons. However, is there a risk of damage to the oil cooling system from the pressure?
If they are a pressure relief, then they are still happily spraying the pistons, but at all pressures, not just above the valve's limit. No so bad either, unless the open valve lowers oil pressure somewhere else in the system causing wear.
Lastly, if the ball shapes the spray, then there is a chance the spray is not hitting the underside of the piston as designed lessening the cooling effect?
Now I'm wondering if in addition to the ball missing, the shape of the squirter after the ball was forced through it is also an issue. Either way it needs repair. Wayne's rebuild book explains that the squirters were implemented by Porsche in 1970 to reduce piston head cooling by a significant 100 degrees. These engines need cool pistons to survive the stress we put them under!
Here’s another quandary… Where’s the spring that holds the ball in the squirter? I’m guessing is stuck in the pump screen!
Out of curiosity, I'm going to visit Kelly Moss Racing to see if they have one laying about that is either disassembled, or I can hack open!
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