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97 mercruiser 7.4

Dleblanc1103

New member
Hey everyone looking for some help. I have a 97 mercruiser 7.4/454. My machanic friend and I did the oil change for me two weeks ago and today before I started my engine I checked the oil. To my surprise I didn't see a drop of oil on the dip stick. So I got my oil pump out and pumped out the oil that was in it and there was only 4.5 qts of oil and I know he put 7.6 qts in there. So I did the oil change again today. New filter and fresh oil. My question is why would be losing oil like that or burning oil like that. What should I do before taking it out again. Pressure check, leak down test etc.
 
How much have you run it since the oil change? does it have a lot of hours on it? Old engine you might suspect the valve stem seals.
 
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