gold-n-rod
06-20-2005, 04:03 PM
This weekend, I noticed that the oil level was up on my 5.0 mpi. The rag I wiped the stick on absolutely reeked of gasoline.
I had been wanting to change out the current oil and go with some straight weight 40, so we pumped it out and drained it into gallon jugs. There was nearly a gallon and a half (little more than 5 quarts). I put 4 new quarts back in and the stick showed exactly at the OK mark.
My plan is to run it some and see if the problem reoccurs. BTW, last weekend, after shutting it down and floating a while, upon restarting, it stunk like unburned gas and while flooring it to get up on plane, it nearly stalled and missed like hell. Remember, this is an MPI motor. Something was not right.
I put in 2 bottles of Techron and it seems to be running better since then, just a little miss when getting to plane and nothing at all like last weekend. I also replaced the fuel filter/separator.
I am guessing that I have an injector that's not fully closing (is that even possible?) and allowing gas to soak the cylinder, eventually ending up in the crankcase. Still, that seems like a lot of gas in the oil.
It is running fine, oil pressure between 20 (hot, under load idle) and 60++ at cold start, no bad noises and other than the problem last weekend, it runs very smooth at all rpms.
Hey Brad Verd, remember when you looked this boat over and you said it looked like the oil was overfilled? Hmmmmm.
Any thoughts??
I had been wanting to change out the current oil and go with some straight weight 40, so we pumped it out and drained it into gallon jugs. There was nearly a gallon and a half (little more than 5 quarts). I put 4 new quarts back in and the stick showed exactly at the OK mark.
My plan is to run it some and see if the problem reoccurs. BTW, last weekend, after shutting it down and floating a while, upon restarting, it stunk like unburned gas and while flooring it to get up on plane, it nearly stalled and missed like hell. Remember, this is an MPI motor. Something was not right.
I put in 2 bottles of Techron and it seems to be running better since then, just a little miss when getting to plane and nothing at all like last weekend. I also replaced the fuel filter/separator.
I am guessing that I have an injector that's not fully closing (is that even possible?) and allowing gas to soak the cylinder, eventually ending up in the crankcase. Still, that seems like a lot of gas in the oil.
It is running fine, oil pressure between 20 (hot, under load idle) and 60++ at cold start, no bad noises and other than the problem last weekend, it runs very smooth at all rpms.
Hey Brad Verd, remember when you looked this boat over and you said it looked like the oil was overfilled? Hmmmmm.
Any thoughts??