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Engine overheating
- Thread starter Toona
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Okay, is that elbow on the cylinder head threaded? Do I just unscrew it?
gazzaskirepair
Active Member
Just poke it with a piece of wire
Did you get water out the tell tale hose out of the side of ski with garden hose switched on and engine running
Did you get water out the tell tale hose out of the side of ski with garden hose switched on and engine running
gazzaskirepair
Active Member
gazzaskirepair
Active Member
When you are flushing with garden hose the cylinder head is the last point of cooling
Yes, it comes out of the tail and side
gazzaskirepair
Active Member
Try blow air through the elbow pipe you removed to see if it’s blocked
Looks you have a blockage between head inlet elbow and exhaust manifold outlet
When you run the engine on the hose , where is water coming out ?
Is it coming out of the exhaust ?
DONT run engine for a long time as youn don’t have engine cylinder/head cooling
Looks you have a blockage between head inlet elbow and exhaust manifold outlet
When you run the engine on the hose , where is water coming out ?
Is it coming out of the exhaust ?
DONT run engine for a long time as youn don’t have engine cylinder/head cooling
On the hose if you are only getting water out of the pisser then all that is telling you is that the pipe is getting water as the hose from the back of the ski goes to the pipe water-jacket which is the same common chamber as the pisser.
For some reason the water isn't getting from the headpipe to the cylinder head. That leaves the exhaust manifold, cylinder and head.
Can you blow air into the hose you posted a picture of in post #43? It sounds bad but use your mouth and see if you can hear air leaving.
For some reason the water isn't getting from the headpipe to the cylinder head. That leaves the exhaust manifold, cylinder and head.
Can you blow air into the hose you posted a picture of in post #43? It sounds bad but use your mouth and see if you can hear air leaving.
Just to avoid confusion, this is the wrong drawing for the OP's ski, his is not a DI ski.
It only comes out of the tail and the side of the ski, if I remember correctly. I absolutely know it is coming out the side, but I'm not sure if it's coming out the back. It is definitely not coming out of the jet by the impeller.
The hose that you took off in post #43 is the same hose that exits the pump so if it's not coming out of the hose in post #43 it will not come out of the pump.
I will try this in a few hours when I'm back at home. If I blow into that hose, where should I hear air leaving? If I cannot get air through that I imagine I should undo that hose and pull the elbow like @FL-Rider suggested. Does that elbow unscrew from the engine block?
Am I correct in assuming this is the flow of water on a garden hose?
Yes, that diagram is on the hose.
Here's the update, I can get a wire a small way into the elbow, but not far enough I guess. So I tied to pull the elbow but a bolt blocks the removal
I should also note, that when I stuck a tie down the elbow, it looked like this and it was kind of salty, even though the owner said it hadn't been in the ocean and they moved here from San Diego.
Anyway, I hooked a garden hose to the T and it shot water out the back in the jet, so that's good, guess that section isn't blocked.
So, I hooked a hose to the elbow and put water pressure into the line
There is a slow but steady leak coming out the back
I should also note, that when I stuck a tie down the elbow, it looked like this and it was kind of salty, even though the owner said it hadn't been in the ocean and they moved here from San Diego.
Anyway, I hooked a garden hose to the T and it shot water out the back in the jet, so that's good, guess that section isn't blocked.
So, I hooked a hose to the elbow and put water pressure into the line
There is a slow but steady leak coming out the back
When you had the hose water going into the head did you have any water coming out the pissers?
Nope, nothing at all
I just measured and I got it 2.5 inches
Well the bad news at this point is I think you are going to have to start taking parts off. For some reason you have a blockage and water isn't getting through the head, cylinder or exhaust manifold.
The good news on the XP it's not as bad as some of the others.
You will need a pipe to manifold o-ring and carb base gaskets, exhaust manifold gasket and head gasket and head o-rings if you go that far.
1. Remove the pipe bolt that is blocking the head elbow from turning and remove the elbow just to verify it's clear.
2. Use tape to mark all hoses on the engine then start removing the hoses you can get to on the pipe. Blow through them just to verify they are clear.
3. Move the oil tank out of the way but don't disconnect it, the airbox snorkels and rubber deflectors and remove the airbox then the carbs.
4. Remove the black pipe and look for blockages where it connects to the silver manifold.
5. Remove the silver exhaust manifold if you don't find the blockage yet.
6. The last thing I would remove is the head because they can be difficult to reseal.
While you have it apart now is the time to change the oil filter, small 3/32" oil lines from the oil pump to the intake manifold and rebuild the carbs with Genuine Mikuni parts.
The good news on the XP it's not as bad as some of the others.
You will need a pipe to manifold o-ring and carb base gaskets, exhaust manifold gasket and head gasket and head o-rings if you go that far.
1. Remove the pipe bolt that is blocking the head elbow from turning and remove the elbow just to verify it's clear.
2. Use tape to mark all hoses on the engine then start removing the hoses you can get to on the pipe. Blow through them just to verify they are clear.
3. Move the oil tank out of the way but don't disconnect it, the airbox snorkels and rubber deflectors and remove the airbox then the carbs.
4. Remove the black pipe and look for blockages where it connects to the silver manifold.
5. Remove the silver exhaust manifold if you don't find the blockage yet.
6. The last thing I would remove is the head because they can be difficult to reseal.
While you have it apart now is the time to change the oil filter, small 3/32" oil lines from the oil pump to the intake manifold and rebuild the carbs with Genuine Mikuni parts.
I just rebuilt the carbs with genuine mikuni kits, put new carb base gaskets on and replaced the oil filter and lines.
Just so I'm clear, I'm looking for blockages here, right?
I'll order the pipe to manifold o-ring and the exhaust manifold gaskets and start there. Unfortunately, a hard freeze is supposed to hit Utah tomorrow evening and I don't have a garage big enough to let me to continue working. So, I'll update when I can, but it may be a few weeks. Thank you again
I'm
I'm also going to the lake with my daughter to reward myself by using my one working ski. I'll let you know how it acts pulling from the lake
Yeah, I changed the carb base gasket last week with these:
Sea-Doo 947/951 Intake Gasket Kit GSX-Limited/GSX-L/XP LTD/VSP-L/GTX/LRV/RX/Sport LE 1997.5 1998 1999 2000 2001 2002 2003 https://www.amazon.com/dp/B00CUFXUH8/ref=cm_sw_r_cp_apa_i_P9pNDbGNMATNF
It was running some blue oil, not sure. I pulled it out and put XPS oil in
Sea-Doo/Ski-Doo XPS 2 Stroke Synthetic Oil Gallon 779127 https://www.amazon.com/dp/B075Y6SN1M/ref=cm_sw_r_cp_apa_i_U-pNDbMCJ57ZQ
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