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Dip stick pops out

jane altman
 

When we rev the engineer to see where the oil leak is coming from, the dip stick is popping up and down!  Any ideas?
Thanks,
Jane

wvanbusk
 

Your engineer is aroused?  Piston ring blow by could be pressurizing the crankcase, check oil level and oil fill breather cap. If the dipstick is really loose, add a spring or dipstick tube grommet so you don't loose it.