455 oil leak Please help

[Wilseya]

I just took my boat out for the first time this season and I have a oil leak I can not find. I lost almost a quart of oil in about 2 hours of crusing around the lake. My oil pressure is fine but I noticed alot of oil in the bilge. so I came home. I don't see any real obvious leaks any one have any ideas could it be the rear mail or something? Nothing has been done to the boat since I have owned it aprox. 7 months.
thank you in advance for any help or suggestions.
Jim aka wilseya

[Bies]

Check oil sending unit, or oil line going to gauge?

[Wilseya]

Thanks for the suggestion I did that this am and they both look good.
I am wondering if it could be from the oil drain hose that is connected to the bottom of the pan. I just got enough of the stuff out of the way to see that it looks as if it is only a hose on a barb the has a clamp on it.
What is the standard way of changing the oil in a jet boat? do they all have this hose?
Thanks wilseya

[Bies]

It's a nice way, so you don't drain in the bilge, some people use vacumn, but I like to drain it from the bottom it gets out the nag

[Wilseya]

I agree I am just curious if this could be where the leak is comming from.
Any Ideas as to how I can pressurize the system to find the leak???

[Wilseya]

Could this be the problem the oil drain hose?

What is involved in removing the oil filter bracket and filter?
Is there anything I need to know about behind the bracket such as springs check balls or is it just bolted to the block?
Thanks for the Help.
Wilseya

[JERROD]

There is nothing behind the oil filter adapter. They just bolt to the block

[Wilseya]

Thank you I will pull it off and check it out.
Wilseya

[BIGA]

just for peace of mind i would replace that drain hose and get rid of the clamp. you might try a friendly a/c guy to put a dye in it and use a uv or black light to find the leak, most of them can do this to hunt the coolant leak or verify the system. have seen a lot of the diy-ers use a shop vac hooked to that hose to scavange out the oil, pretty fast and safe clean way to do it. just make a temp adapter from the drain to the vac hose and it much easier to dispose of properly that way.

[Wilseya]

Big A
I am not so sure I understand how I can vacuum the oil out do you have any pictures of this process. What do you suggest I use instead of the the hose clamp. I am open so please any one feel free to chim in here.
Thanks again all.
Wilseya

[urfaceisstupid]

you have to have a sealed marine dipstick to vac it out best to make a new drain out of -8an braided line and fitings thats what i did worked out great

[Wilseya]

Do you have any pictures?

[urfaceisstupid]

i will try and take some tommorow i could also make the setup and fed ex it to ya if ya like just need to know the length from the pan to your rear drain plug hole prolly cost bout 75.00 to make

[BIGA]

Big A
I am not so sure I understand how I can vacuum the oil out do you have any pictures of this process. What do you suggest I use instead of the the hose clamp. I am open so please any one feel free to chim in here.
Thanks again all.
Wilseya

an auto parts store that can make hyd lines or ac lines , use a piece of hose long enough to reach thru your drain hole and have a removable cap plug on one end and the correct fitting on the pan end to screw onto your pan fitting, thus eliminating the worm clamp. when changing oil a low tech way is insert the hose after removing the cap plug into the shop hose and tape seal the two together, turn on the shop vac and it will scavange out the oil . should be ableto get the hose made up for under 20, low tech but effective .

[Wilseya]

Thanks you guys, I appreciate all the advice. it is Raining here and I wont have a chance to check it out for a couple more days but I will see if I can get it done. Sounds easy enough to me.
Wilseya