I have a 2000 Yami 130 with oil injection. I keep the boat in a Marina and of course, always tilt up the lower unit out of the water when I leave. Recently I have noticed oil in the transom well, not a lot but enough to be annoying. It appears the oil leaks from under the cap on the engine tank when in the tilted up position. Anyone else had any such experience? Can't see a gasket on the cap(It's a snap on cap) and sure don't want to replace the cap/oil level sender unit. Any comments would be appreciated.
Yamaha Oil Leak
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yeah and you should make sure its clean on the mateing surfaces by wipeing with clean cloth so you get a good seal
although i have no independent knowledge of your set up
you say you tilt the lower unit, is this an outboard engine? so the whole motor is tilted?
if the case can you "****" the motor with the steering wheel to either side when you tilt? try ****ing it a direction where the oil dont touch the cap
like i says i dont know the set-up as i still premix at the punp
let us know whats up
roslynny
although i have no independent knowledge of your set up
you say you tilt the lower unit, is this an outboard engine? so the whole motor is tilted?
if the case can you "****" the motor with the steering wheel to either side when you tilt? try ****ing it a direction where the oil dont touch the cap
like i says i dont know the set-up as i still premix at the punp
let us know whats up
roslynny
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46 Posts
I had the exact same problem with yamalube lube dripping from my new 200hpdi. There is a bleeder valve in the injection system that will leak oil if it is loose. The mechanic tighen it up and that fixed the problem. I hope this helps
-john
-john
I think we might be onto something here!! I have a 1998 Saltwater Series that is doing the same thing!
Unfortunately I will be away from my boat for another 2 weeks, so please keep up the posts on what works!
Anyone think contact should be made with Yamaha now that it seems like this is a prevalent problem?
Unfortunately I will be away from my boat for another 2 weeks, so please keep up the posts on what works!
Anyone think contact should be made with Yamaha now that it seems like this is a prevalent problem?
Joined
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6,791 Posts
I hear ya
I went nuts with the same problem last summer for about 2 months on my 200 Yamaha, Saltwater Series (1994) engine.
Most of the so called Certified Yamaha mechanics I spoke with did not know how to fix it.
The cap on the oil tank on the engine, would pop up all the time when it was tilted up. The oil would spill out.
I tried putting a gasket on it, I replaced the whole sending unit ($$), and even considered changing the whole tank.
Then I found out what was causing it.
The main tank in the boat (the one you fill with that expensive YamaLube), well inside it there is a small pump to push the oil up to the engine tank.
For some reason, when there is a voltage drop to the engine or pump (I think it was below 11 volts) from either a low battery or a drain from the tilt motor, the pump in the main tank is somehow activated. It pushes oil up to the engine tank. (Yes even when the engine is shut off).
The the pressure pops open the cap.
For me the solution was to get a new battery for that engine.
To test, put the cap back down and drop the engine. Then with no other power source use the battery to tilt the engine up, and watch the cap for a few minutes (with oil rag in hand).
Be careful to not push down too hard on that cap when re-seating it.
Also be sure it is all the way down. There is usually a notch in the cap and if not aligned correctly the cap will not seat properly. The sensor will be out of line, and the oil level in the tank will stay elevated, and keep poping the lid.
The cap is actually the top of the oil level sending unit for that engine.
It has a screened in float that senses the oil level in the engine tank, and if you damage it or put in in wrong you can screw up your oil flow/engine.
Watch out for the small rubber gasket at the bottom of the sending unit that can be out of alignment. Be sure that the notched cap with the sending unit and lower gasket (about the size of a thumbnail) are in place and that the cap snaps down flush.
DO NOT FORCE, CLAMP OR OTHERWISE HOLD THAT CAP DOWN. It needs to be able to pop if the pressre in the tank is too high.
If the cap pops open when you do the test it is likely a low battery. Check your battery and put a charge on it, or replace. IF you can't do this with 100% confidence, then get a good Yamaha Tech to do it. Don't risk screwing up your oil system.
Good luck....
I went nuts with the same problem last summer for about 2 months on my 200 Yamaha, Saltwater Series (1994) engine.
Most of the so called Certified Yamaha mechanics I spoke with did not know how to fix it.
The cap on the oil tank on the engine, would pop up all the time when it was tilted up. The oil would spill out.
I tried putting a gasket on it, I replaced the whole sending unit ($$), and even considered changing the whole tank.
Then I found out what was causing it.
The main tank in the boat (the one you fill with that expensive YamaLube), well inside it there is a small pump to push the oil up to the engine tank.
For some reason, when there is a voltage drop to the engine or pump (I think it was below 11 volts) from either a low battery or a drain from the tilt motor, the pump in the main tank is somehow activated. It pushes oil up to the engine tank. (Yes even when the engine is shut off).
The the pressure pops open the cap.
For me the solution was to get a new battery for that engine.
To test, put the cap back down and drop the engine. Then with no other power source use the battery to tilt the engine up, and watch the cap for a few minutes (with oil rag in hand).
Be careful to not push down too hard on that cap when re-seating it.
Also be sure it is all the way down. There is usually a notch in the cap and if not aligned correctly the cap will not seat properly. The sensor will be out of line, and the oil level in the tank will stay elevated, and keep poping the lid.
The cap is actually the top of the oil level sending unit for that engine.
It has a screened in float that senses the oil level in the engine tank, and if you damage it or put in in wrong you can screw up your oil flow/engine.
Watch out for the small rubber gasket at the bottom of the sending unit that can be out of alignment. Be sure that the notched cap with the sending unit and lower gasket (about the size of a thumbnail) are in place and that the cap snaps down flush.
DO NOT FORCE, CLAMP OR OTHERWISE HOLD THAT CAP DOWN. It needs to be able to pop if the pressre in the tank is too high.
If the cap pops open when you do the test it is likely a low battery. Check your battery and put a charge on it, or replace. IF you can't do this with 100% confidence, then get a good Yamaha Tech to do it. Don't risk screwing up your oil system.
Good luck....
George: Had the exact problem with my 200 Saltwater Series (A '98)...After my mechanic spent about a month asking around, a factory rep advised just to clamp the rubber cap with a plastic clamp...same type you use to tie off a bunch of wires...He did so, which of course cured the leak. Now I'm concerned about FredyFluke's advice, which makes sence to me since there is no reason to design a cap like that unless it is meant to pop off under pressure...Gonna look into this!
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