Drive Oil Leak

JJONES · 06-27-2005, 12:06 PM

I Have Just Rebuilt One Of My Bravo Ones,installed It Back On The Boat,filled It With Oil,no Leaks.Put The Boat In The Water And Ran Boat For 30min Or So,recheck Oil Level And Noticed It Had Dropped In The Res. From The Full Line Down To The Add Line,topped It Back Off Thinking It Could Of Had An Air Pocket,ran Boat For Another Thirty Min And Found The Loss Of About The Same Amount.Put Boat Back In The Dock And Topped Off A Third Time,let It Sit Overnight,checked The Level This Morning,level Is Good,were Can The Oil Leak From When In Use Only?doesnt Seem To Leak When On The Trailer Or In Dock!

Thanks

CMG · 06-27-2005, 12:40 PM

Quote:

Originally Posted by JJONES

I Have Just Rebuilt One Of My Bravo Ones,installed It Back On The Boat,filled It With Oil,no Leaks.Put The Boat In The Water And Ran Boat For 30min Or So,recheck Oil Level And Noticed It Had Dropped In The Res. From The Full Line Down To The Add Line,topped It Back Off Thinking It Could Of Had An Air Pocket,ran Boat For Another Thirty Min And Found The Loss Of About The Same Amount.Put Boat Back In The Dock And Topped Off A Third Time,let It Sit Overnight,checked The Level This Morning,level Is Good,were Can The Oil Leak From When In Use Only?doesnt Seem To Leak When On The Trailer Or In Dock!

Thanks

How did you refill when the drive was serviced? If pushed up from bottom of drive to the rez there shouldn't been much of any space left unfilled, if filled from the rez down maybe this is it. Theres a lot of guys on here that know better than I though..

JJONES · 06-27-2005, 01:53 PM

I Filled The Drives From The Bottom Until The Oil Came Out The Upper Hole,then Put The Plugs Back In And Went Inside The Engine Are And Fille up The Res.the Boat Sat For A Few Days Aswell With No Oil Level Change.it Only Change When Running,topped It Off Last Night Again,no Change This Morning When Just Sitting

shawn · 06-27-2005, 04:34 PM

Check the o-ring at the oil line connection. Mine failed and I had the same problem last year

Mr Gadgets · 06-27-2005, 05:28 PM

Jjones,
You should fill to the top plug and put the plug back in.. then continue to fill till the resovior fills..

I would run it a couple of more times.. if it continues to go down.. then you have a problem. Pull the drive back so the check valve is closed on the hose to the resovior and do a pressure check. I check them at 10psi for 24 hours.. I made an adapter that has 3/8-16 thread on one end and 1/8" pipe on the other with a tee.. Well actually it came off a TPI small block chevy.. oil sender by the distributer.. But I have the gauge on it and a shrader valve. Squeeze a bit of air into it and see what happens.

One other thing, are you running it hard? And what about a drive shower?
Another thing to check, look for water in the oil.. Pull the bottom plug.. after the drive has sat all the way down overnite..

Hope this helps.. I had to add some about 3 or 4 times once.. to get all the air out. Then it leveled out..

Dick

JJONES · 06-27-2005, 05:40 PM

I Did Fill From The BOTTOM With The Top Plug Out,then When Oil Came Out,i Put Plugs Back In And Filled Res.i Did Run Fairly Hard,4500 Rpms At Times,the Other Drivehas No Change In Level,the Drives Do Have Showers On Them,total Running Time Was About 1hr.had To Top Off Twice,it Dropped From The Full Line To The Add Line!thanks.

HighPriority · 06-27-2005, 09:39 PM

You MAY NOT have anything wrong. More often than not when you rebuild a drive with new gears and bearings, there is a lot of room for air pockets in the bearing and gears itself. It is very important to keep a close check on the oil level, but if you are not having any leaks on the outside of the drive you are probably OK. This happens to us all the time.

JMPH · 07-03-2005, 10:14 AM

Can you make an adapter that screws to the top of the fill bottle and put 10 lbs in it or does it have to be pressurized from bottom
thks Joe