2000 gtx rfi

[ucontrol]

I have a 2000 Sea Doo GTX RFI unit. After having it serviced by my dealer last summer, it was parked in my garage for the winter. About a month ago, I decided to go out again. I installed the battery and tried to start it. It clicked like a dead battery. It turned out that the cylinders were full of oil. In fact the oil tank was just about empty. After several attempts to get the oil out, It finally started. I took it to the lake the next day and it ran perfect. We used it all day without any issues. After parking it for a week, I tried to use it again and the same thing happened. This time the oil was a lot less, but it was still fluid locked until I got the oil out. At the lake, again, the ski ran perfect. This time when returned home I clamped off both lines coming out of the oil tank. After a week, it started with no excess oil in the cylinders. I now have clamped off the oil pump line and left the crankshaft line open. Again, after a week, the ski did not have any excess oil. So it appears that the oil pump line is leaking oil? It has been suggested that I buy a new engine. It is a fuel injected motor and only has 175 total hours. I am not interested in putting 2 or 3 thousand dollars into a unit that COULD be banned in the future. Are there any other offers that could be a more reasonable solution? Sorry for the long post, I just wanted everyone to have the complete history. Thanx Steve rovnr@aol.com, 805 526 7924

 

[Coastiejoe]

This is a VERY common issue. The crank seal goes bad and it allows the oil from the tank to "leak" into the engine. Install a shut-off valve and you will be good to go. One suggestion is to put your lanyard on the shut-off valve whenever you have the valve turned off.

MANY have done this and have run their ski like this for years..

 

[ucontrol]

Thanks for the reply. I do not understand how the crankshaft line from the oil tank is left open, and the injector line from the tank is blocked and there is NO extra oil in the cylinders, the crank seal is the culprit? Also, if the crank seal is bad would the engine run poorly due to an air leak? The ski runs fine after the oil is removed. Thanx again rovnr@aol.com

 

[jammin777]

so it fill the cylinders full of oil only when the oil pump line is not pinched? on the rv cover has 2 3/32" oil line nipples that the small 3'32" oil lines connect to, they are also check valves and when they go bad they bleed oil into the rv and possibly fill the cylinders. to check, disconnect each of the small oil lines on the oil pump side and blow through them, if you are able to push oil through my mouth then those ck valves are bad. if i remember right they should pop off around 3 to 5 psi. ragtop68 talked about these in another thread which lead me to test mine and sure enough mine were bad as well. heres where i got mine.
http://www.ebay.com/itm/SKI-DOO-OEM...wmobile_Parts_Accessories&hash=item2ecf862267
or:
part no 27
http://www.2wheelpros.com/oem-parts...-rotary-valve-assembly.html?partnum=420922247

 

[Sportster-2001-951C-Stock]

Obviously gravity is causing oil from the tank to flood the crankcase. Although less common, I think you should consider jammin's idea for a course of action if by pinching the RV cavity supply tubing the crankcase is still being flooded.

That is, it appears the source of oil flooding your crankcase is traveling through the oil injection nozzles.

 

[Sportster-2001-951C-Stock]

Also, if the crank seal is bad would the engine run poorly due to an air leak? The ski runs fine after the oil is removed. Thanx again rovnr@aol.com

If the inner crank seals are leaking (It appears yours aren't) this means the inner seals are worn and it's likely the outer seals may also be worn to the point air can leak into the crankcase around the crankshaft while the engine is running. If this happens on a carbed ski it will cause engine damage and even on an injected 2-stroke it's less likely but may cause damage as well b/c the engine may run too lean.

 

[ucontrol]

Ok, I ran another test. It does appear to be the crank seals after all. So the suggestion to block off the crank lines when parked seems to be my best solution? Will this cause any breakdown on the water as long as the ski runs good? Thanx again

 

[Sportster-2001-951C-Stock]

You can install a valve in the oil line and turn it off when the ski isn't being used, to stop the slow leaking of oil into the crankcase BUT you have to remember to turn the valve back on before starting the engine b/c there needs to always be an oil bath in the RV cavity for the RV driven gear, which is driven by the crankshaft gear.

So this should buy you some time and may run fine for many years as long as the crankshaft seals don't go completely south.

IMPORTANT REMINDER: Remember to turn the valve back on before starting the engine! One way to remind yourself is by attaching the lanyard to the valve/pincher when turning it to the off position.