Both my 575SCi's have a very minor oil leak. I was wondering if this is common or if anyone else experienced oil leaks on the front on the motor. I am looking for any guidance on where I should look.
I am NOT sure where the leaks are YET.

I found oil on Port motor. The oil is on the front bracket that holds the cool fuel assembly. I can't yet see how it is getting on the bracket yet. I assume front timing cover or seal behind harmonic balancer. Only 1 drip in bilge. This motor had this leak last year, and when I had this motor out over the winter I could not see any trace of a leak.

On the starboard motor, I saw an oil trail on the large cooling hose that is right under the oil filter. That hose goes from the thermostat housing to the water pump. I am 99% sure the oil is not coming from the filter. I appears to be traveling from more of the center of the motor, then to the hose. No drips in bilge yet.

Anyone have to deal with oil leaks on 575's????

Yes, I have just developed a small leak at 130hrs. I have not been able to see where mine is either. Seems to be center underneath as I cannot find any obvious spots on the hoses or valve covers by rubbing my hands where I can't see. Next time I'm at the boat I'm going to try mirrors to see underneath. I have a oil drain hose that I was hoping might be the problem if it had loosened at the oil pan drain.

No oil leaks from ours yet (50 hours). But we did discover two fuel leaks! Fittings at the water seperator were VERY loose. Hopping this helps the gas milage ;-)

Guys:
My best friend and I both have 575s. I have 240 hours on mine with no leaks. Same for his @ 275 hrs.
Regards,
Steve

Check the dipstick tube where it enters the block. This will not leak at an idle but will after a run at higher RPMs. Clean off and put some silicone around the tube.

The oil line fittings under the filter leak slightly all the time, you need to keep them tight!

Problem found:

http://www.offshoreonly.com/forums/s...28#post1330828