Running 04 four tec out of water for 20 minutes.

[Eric Lamberts]

According to the owners manual, the ski should not be run more than five minutes when flushing the engine, because the drive line seal has no cooling when the watercraft is out of the water. I am finishing the procedure in the maintenance section of the shop manual for a water flooded engine and am to the Boil Out Procedure. Here are the directions:


1. On drive shaft, remove the C-Clip then move
forward the ring seal carrier. Refer to DRIVE
SYSTEM section.
CAUTION: Make sure that the ring seal carrier
is not in contact with the PTO seal assembly,
neither with the carbon ring.
2. Connect a flush kit to the coolant line.
CAUTION: Never run engine without supplying
water to the exhaust cooling system when watercraft
is out of water.
3. Run the engine for 5 minutes at 3000 RPM.
With the engine still running at 3000 RPM, install
a hose pincher to the coolant line going to
the oil cooler.
4. With the engine still running at 3000 RPM, install
a hose pincher to the coolant line going to
the oil cooler.
5. Continue to run the engine at 3000 RPM for 15
more minutes (20 minutes total run time).
6. Shut off the engine
7. Remove the hose pincher on the coolant line
going to the oil cooler
CAUTION: Hose pincher must be removed prior
to operating the watercraft. Failure to do this
will result in damage to the engine.

So. My question. The SeaDoo parts guy (the smart one, not the dumb kid) says no flush kit needed--the connection in the pump indentation is already there.

By moving the ring seal carrier is this give adequate cooling to the seal, or do I need a separate cooling kit for this? It doesn't look to be terribly easy--way at the bottom of the compartment

The other thing is that with all the messing around, I'm over due for a bilge cleaning---couldn't I just fill the bottom of the ski with water and degreaser cool the bearing and clean the hull at the same time??

Thanks!

Eric Lamberts

I'm tempted to write up a submerged engine article for the tech files. Quite the procedure.

 

[Michael211_2000]

Well that's an interesting idea.... I don't see why it wouldn't work to keep the carbon seal water cooled if you fill the hull up with water to the top of the seal. I don't think I'd add any degreaser to the water though as the degreaser could damage the seals in the output sleeve of the engine (which would also be underwater)... do your bilge cleaning seperately.

- Michael