165 inline 6 oil / water in bilge

[jeepregal]

i just bought a vip bow rider 1974 it has an inline 6 165 hp after taking it out for the first time i noticed that there is water and oil mixed in the bilge so i cleaned it up change the oil made sure it was full and put muffs on to start in driveway let it run for 10 to 15 min no oil or water in bilge so took it out on the water for a few hours and now i have water and oil back in bilge anyone have an idea what's going on

i also did compression test and getting 110 lbs per cylinder

 

[alldodge]

Re: 165 inline 6 oil / water in bilge

You haven't seen any oil anywhere on the engine?

 

[Bondo]

Re: 165 inline 6 oil / water in bilge

i just bought a vip bow rider 1974 it has an inline 6 165 hp after taking it out for the first time i noticed that there is water and oil mixed in the bilge so i cleaned it up change the oil made sure it was full and put muffs on to start in driveway let it run for 10 to 15 min no oil or water in bilge so took it out on the water for a few hours and now i have water and oil back in bilge anyone have an idea what's going on

i also did compression test and getting 110 lbs per cylinder

Ayuh,... Welcome Aboard,... You have a couple of Leaks,...

The Only way to find 'em,... is Look,....

 

[jeepregal]

Re: 165 inline 6 oil / water in bilge

ok thanks ill keep looking i was hoping for a little more info than the obvious

 

[ziggy]

Re: 165 inline 6 oil / water in bilge

well,
for water intrusion, drive shaft bellows, shift cable bellows, gimble housing transom seal come to my mind. hose leak on the engine? broke block? broke manifold? water drain plugs?
for oil, valve cover seal, lifter cover seal, trim system leak (my '75 uses engine oil in the trim system). or i personally had an elusive oil leak. took over a year to decide where it was at. it was the bottom of the oil pan that had rusted through and dripped oil real slow. the leak was near the oil drain plug which also could leak oil. but in my case it was actually the pan that leaked.

remember, leaks always run downhill.

best i can come up with. next comes the looking....

 

[BRG25]

Re: 165 inline 6 oil / water in bilge

There's a lot of possibilities. Perhaps you should first determine if the water is coming in without the engine running. That would narrow down the list. If that is the case, then pull the out drive.

 

[jeepregal]

Re: 165 inline 6 oil / water in bilge

just an update the water was caused from bad water drain plug and oil leak was from a bad rear main seal