- Location
- New Bern, NC
If you pull a sj behind a boat fast enough the boat is one plane will it cause the impeller to turn the motor over and cause damage to the motor? Say 25mph.
Towing ski behind boat?
- Thread starter RanDapp
- Start date
Motorheads5
Livin the generation gap
- Location
- ketchikan alaska
I have heard it will flood the motor with water. it's more or less like hooking it up to the garden hose without the engine running.
madscientist
chilling with these guys.
- Location
- good old p'cola
pinch or plug the cooling lines and it will work, the other problem is stand-ups are nose heavy and will try to sub to the bottom.
it can be done with a little innovation.
it can be done with a little innovation.
- Location
- Knoxville, TN
yeah i learned this with my 550. it completely disappeared underwater...then the boat stopped and thud..... wooosh.... it hit the bottom of the swim platform and floated up. if you have a couple friends its easier on everything just to pullit onto the swimplatform.:bananapowerslide:
- Location
- Annapolis, Maryland
dont remember where i heard it but i heard water will back up the exhaust and go in the engine. yes it also totally nose dives. though it is fun to stand on the ski while getting towed. balancing is tough. can you tell my engine craps out a lot?
vitalikol
Jetski-Snowboard
- Location
- Pennington,NJ
I towed my SXR behind boat on really short line for couple miles with no problems.
BombThreat
'Diggity
- Location
- Johnstown, NY
I got towed behind a huge runabout doing about 25mph... Took all i could do not to do about 5000 barrel rolls on the water. I can only imagine what it would have done without anyone on it.
Ive heard of people getting a piece of plywood with some floats, dragging it behind the boat (attached to boat) and driving the ski up on it
Ive heard of people getting a piece of plywood with some floats, dragging it behind the boat (attached to boat) and driving the ski up on it
- Location
- Webster, NY
I've been towed way too much and faster than 25 before and the motor has never turned over on me. As for water filling up the exhaust I can't speak for stock systems but I've never had a problem with my bpipe and I've been towed a lot. The biggest thing when towing a ski is having a long rope and someone on the ski.
- Location
- New Bern, NC
How would it push water through the cooling lines? There isnt any pressure in the pump to push it. Right?
madscientist
chilling with these guys.
- Location
- good old p'cola
by towing it it will build enough pressure in the pump to push the water in to the motor filling it over a period of time and sinking the boat.
WaveDemon
Not Dead - Notable Member
- Location
- Hell, Florida
yes there is. it's pretty common to have a motor full of water after being towed in. I usually put a glove in the pump to stop the water flow.
bs
the pressure in the pump while towing isnt as great as you guys are making it out to be. there arent 'scoops' in the pumps that pick up water.... just orifices that get pressurized when the impeller is spinning. when youre towing, water is basically flowing in and 'falling' out of your pump. its not building up pressure..... not enough to go through the manifold, around the cylinders, out the head to the pipe, and then into the cylinders.
now, if you have a direct line running from your pump to a low spot in your pipe... MAYBE.
the pressure in the pump while towing isnt as great as you guys are making it out to be. there arent 'scoops' in the pumps that pick up water.... just orifices that get pressurized when the impeller is spinning. when youre towing, water is basically flowing in and 'falling' out of your pump. its not building up pressure..... not enough to go through the manifold, around the cylinders, out the head to the pipe, and then into the cylinders.
now, if you have a direct line running from your pump to a low spot in your pipe... MAYBE.
Last edited:
WaveDemon
Not Dead - Notable Member
- Location
- Hell, Florida
pressure or no pressure towing a ski will fill the motor with water. It happens all the time.
maybe its because the ski being towed in is already swamped.
i tow behind my jetmate about 8 miles a week at around 20-25 mph with a 2' rope. it planes off with no issues at all.
the thing to think about is this.... if water is getting into your cylinders... is it because of a bad head gasket/o-rings? or is it because its going through the pipe and then into the cylinders? if its going through the pipe and then the cylinders, youd also have water coming out of at least one of the pissers.
but this never happens... at least not to me. though, if i saw water coming out of a pisser while towing, id completely rethink the whole idea.
T Curtis
RRP/ RICKTER DEALER
- Location
- Morro Bay California
you can put a valve inside the engine compartment in your incoming cooling line or lines to tow the ski. Ive seen engines get flooded with water numerous times while towing.
We towed Joe's sj out to Todos once and was completly full of water when we got there.
We towed Joe's sj out to Todos once and was completly full of water when we got there.
i dont know what you guys are doing different. too fast maybe? too long of a distance? both?
i do about 2 miles per shot, but ive gone way longer with no issues.
...maybe if your feeding the pipe separately from the engine, its more likely, because it doesnt have to travel through the manifold, cylinders, and headpipe to get into the cylinders
i do about 2 miles per shot, but ive gone way longer with no issues.
...maybe if your feeding the pipe separately from the engine, its more likely, because it doesnt have to travel through the manifold, cylinders, and headpipe to get into the cylinders
Last edited:
towing an unmanned standup with a rope longer than 2 feet will result in a nosedive.
seriously.... ive been towing my SJs for years... routinely.... never once a water ingestion issue.
i can certainly see how it could be possible, but honestly, ive only heard of it 'happening' online.:shhh:
Last edited: