Recently replaced engine... oil leak, please help

[nautiques4life]

New to me, used boat, had engine replaced about 20 hours ago. First few trips everything was great, absolutely no issues, then last weekend on Friday noticed a little oil in the bilge at the launch ramp, not much, checked the dipstick- all good, kind of assumed it was the first time there was a lot of water in the blige- water is finally warm that ppl are getting in and out and swimming a lot, so I thought maybe it was hidden in the bow or something, just finally sloshed back to where I could see it.
Day 2 ran great, but that night at the launch ramp significantly more oil loss, clearly something is up. Check dipstick, very bottom of range, but still good.
Added a quart next morning, ran it half day, by then Oil pressure warning had come on, and bilge was even more full of oil... quarts. Dipstick almost dry, crawled in the engine compartment, looks like this. No signs of oil until the back of the boat- ie the front of the engine where the belts are. First thing I noticed is that it had gotten on the belts and consequently been sprayed all over the engine dividers. At a closer look, I saw one hose that looked like the clamp wasn't tight enough and that oil was leaking from it (see red arrows in photo) but this doesn't appear to be an oil line so I think it is coming from somewhere above this hose/clamp maybe?
My first thought was maybe the head gaskets weren't tight enough after the rebuild and leaking there, but seeing where most of the oil is in the back and not anywhere along the sides I'm starting to think maybe timing gasket? Bored at work far away from the boat but thought I'd bounce my thoughts off all of you, anyone with ideas or a similar experience i'd love to hear your thoughts, thank you.

[j2nh]

The red arrows are pointing at a cooling water hose. This is not where the oil is leaking.

[nautiques4life]

Yeah, I agree... That's why I'm assuming it is leaking from somewhere above it

[Paxdad]

More than likely an intake manifold gasket leak.

[Quinner]

On an inboard the remote oil filter is just above that area, check filter and hoses for leaks, if oil was changed recently be sure the old gasket was not left on which will cause a leak

[Paxdad]

On an inboard the remote oil filter is just above that area, check filter and hoses for leaks, if oil was changed recently be sure the old gasket was not left on which will cause a leak

Quinner,
You may want to go back and look at the boat that the OP has and the photo. On a 2012 230 the remote oil filter is not even in the same proximity of where the leak is at.

[Quinner]

Thanks PAX, hence the "on an inboard" in my post as I did not see his mention of which boat/motor he had.

[s_kelley2000]

Just something to consider, but where is the oil drain hose? It is usually on the front of the engine and gets clipped up so it doesn't run into any of the belts. Make sure the cap is on there tight and that it is clipped out of the way. Make sure that hose doesn't have any cuts and that the end that screws into the drain plug of the oil pan is not leaking.

[BT]

My guess is the timing cover seal. The oil is slinging onto the sides of the engine compartment, therefore has to be getting on rotating parts (crankshaft). Is it a 343 or 409?

[jkallen21]

mine leaked pretty bad from the oil sender and oil was everywhere. Depending on how the sender cracks, that could explain the loss of pressure alarm (the sender is the device responsible to "sending" pressure to the gauges). The low oil pressure alarm is not the same as being low on oil.

[nautiques4life]

Not the oil drain hose; it and the clamps to the oil filter were the first 2 things I checked.. Wishful thinking as they were the easiest to get to and easiest to fix. My best guess is the timing cover- the oil sending unit would explain the huge amount of oil too. Truely all of the suggestions have been appreciated; should be back out to the lake Friday and will update once I know more. Thank you everyone.

[jkallen21]

Here's a good way to find the approx location...
Clean the bilge the best you can. Then drop some clean cardboard into the bilge under as much of the engine as possible. Then run the engine and see if you can locate a drip onto the cardboard.
Good luck