82 evin. 35hp lower unit has milky oil

[signfinder]

I am trying to figure out where this water is getting in my lower unit. I haven't taken it apart yet but have got a presure gauge on it and it leaks off from 15# to 0# in 30 minutes.I am trying to locate a bucket big enough to set it in during this test. Does anybody have a exploded view of this size of motor on the lower unit? I have a OMC service manual for 2 thru v-6 and it dosen't have the exploded view of the 35 hp lower unit.I just would like to know what I am looking at before I get into it. Any info on this problem would be great... thanks ahead of time

 

[petryshyn]

Re: 82 evin. 35hp lower unit has milky oil

don't need a bucket, just use some warm water with dish soap. Take a rag, dip it in , and squeeze the rag to dispence the mixture on the suspected areas. You'll see bubbles right away!! <br />Remember, the shift lever is disconnected from the plastic water intakes below the cavitation plate....

 

[signfinder]

Re: 82 evin. 35hp lower unit has milky oil

Put 15# psi to lower unit and it held for 3 hours.... I think I had a hose leaking the first time.I am trying to test this thing with the lower unit still installed on the powerhead. I guess I'll go ahead and try the vacume test. I am open for any comments or ideas. thanks again

 

[petryshyn]

Re: 82 evin. 35hp lower unit has milky oil

is the LU empty of oil? If not.....it should be....<br /><br />good luck!

 

[signfinder]

Re: 82 evin. 35hp lower unit has milky oil

Yes I drained the oil overnight. I put 26# vacume on it and it has held for 1 hour so far. Is it a possible that it just created moisture in there?? I don't know anything else I can check. Maybe I will put oil back in it and check it in a couple weeks. Anyother ideas from anybody????? thanks ahead of time

 

[petryshyn]

Re: 82 evin. 35hp lower unit has milky oil

Yo signfinder<br />I think you already found your leak. Its called "tired fill and vent gaskets". Replace them, put fresh oil and retest motor in water.<br /><br />Good luck!!<br /><br /><br />