oil smells like fuel

[powersail]

I have been having starting and running issues with my 1989 3.7l mercruiser. Recently when I start it, it will run (perfectly I think) for a few seconds then stall. The other day it took a long time to start then it backfired and stalled. When I take the cap off the valve cover it smells like fuel. Could this be caused by the fuel pump?? a bad diaphram??

 

[Don S]

Re: oil smells like fuel

Fuel pump needs replaced. Leaking in to the crankcase past the lever.

 

[powersail]

Re: oil smells like fuel

Is it possible for that to happen without seeing any gas in the upper part of the pump? I took the pump apart and the top was bone dry...do you think that's the backfire issue too? Thanks!!!

 

[achris]

Re: oil smells like fuel

Has the oil level risen any? When you replace the pump, make sure you change the oil too...

 

[powersail]

Re: oil smells like fuel

It doesn't look like the oil has risen, but definitely smells. I guess replacing the pump is my first step ...

 

[Don S]

Re: oil smells like fuel

It doesn't look like the oil has risen, but definitely smells. I guess replacing the pump is my first step ...

That's it.

 

[powersail]

Re: oil smells like fuel

Thanks!!! I'll let you know how it goes!

 

[powersail]

Re: oil smells like fuel

Fuel pump all changed out, followed by an oil change ... All seems to be working fine now!!! Thanks!,!