I have seen this too and thought I would be giving it a try. Thanks!
Weep hole leaking after seal replacement
Dealer just replaced the water pump seal under warranty and the hose has about 4” of coolant in it again already. It’s been a week and roughly 50 miles. Do you think the entire water pump is shot? Fan runs often but no overheating.
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After you do it post back your thoughts on it.I have seen this too and thought I would be giving it a try. Thanks!
Eidch13R; the video #3 didn't explain the procedure for using the press. When you get it set up you turn the bolt about 1 & 1/2 turn and then you have to remove the press and pull the shaft out (it will only move a tiny bit) then reinstall the press and "rinse and repeat". It will take a few times to get the seal seated. The reason for this procedure is so you don't damage the gears on the other end of the shaft. It's a PITA but better safe than sorry.
Perfect, thank you. I will let you know when I get the press and get it done. Hopefully it takes care of the issue for me.Eidch13R; the video #3 didn't explain the procedure for using the press. When you get it set up you turn the bolt about 1 & 1/2 turn and then you have to remove the press and pull the shaft out (it will only move a tiny bit) then reinstall the press and "rinse and repeat". It will take a few times to get the seal seated. The reason for this procedure is so you don't damage the gears on the other end of the shaft. It's a PITA but better safe than sorry.
The two 2013 800 XTPs in my stable have always presented antifreeze is the weep tube. My understanding regarding the weeping is as follows:
There is an air cavity between the back side of the water pump shaft seal and the front side of the oil sump seal - both of these seals are for the water pump drive shaft. The air cavity's sole purpose is to keep coolant from entering the oil sump if the water pump shaft seal should fail. The empty cavity is vented to atmosphere via the small nipple and 3" section of hose that's run down under the frame. SHOULD any coolant leak into this space, the coolant drains out of the weep hole's drain tube. IF this drain tube were to collect water in it and freeze, THEN it's possible for enough coolant to fill the cavity and to pressurize into the oil sump. But it's not likely as the block warms up with usage, and the water in this cavity will warm, and thus, melt any ice in the tube. Being clogged with mud would be a more probable culprit
It's also possible, but not probable for oil to enter the coolant system the same way, but you have to have a failed oil seal around the water pump shaft, a clogged weep hole, full weep hole cavity, AND a pressurized sump - which it isn't.
There is an air cavity between the back side of the water pump shaft seal and the front side of the oil sump seal - both of these seals are for the water pump drive shaft. The air cavity's sole purpose is to keep coolant from entering the oil sump if the water pump shaft seal should fail. The empty cavity is vented to atmosphere via the small nipple and 3" section of hose that's run down under the frame. SHOULD any coolant leak into this space, the coolant drains out of the weep hole's drain tube. IF this drain tube were to collect water in it and freeze, THEN it's possible for enough coolant to fill the cavity and to pressurize into the oil sump. But it's not likely as the block warms up with usage, and the water in this cavity will warm, and thus, melt any ice in the tube. Being clogged with mud would be a more probable culprit
It's also possible, but not probable for oil to enter the coolant system the same way, but you have to have a failed oil seal around the water pump shaft, a clogged weep hole, full weep hole cavity, AND a pressurized sump - which it isn't.
The issue I am having is that the entire 3+ feet of breather hose for the weep hole will completely fill up with coolant if I don't drain it after every ride. I have the XMR and that hose for the weep hole runs to the top of the machine behind the gauge cluster. I understand a drop or two may be present in the tube but it should not push enough coolant to fill that hose after a few hours of riding. I inspected the seal and opted to take it back to the dealer to have them fix this correctly although I do not have much faith in the work they are doing.The two 2013 800 XTPs in my stable have always presented antifreeze is the weep tube. My understanding regarding the weeping is as follows:
There is an air cavity between the back side of the water pump shaft seal and the front side of the oil sump seal - both of these seals are for the water pump drive shaft. The air cavity's sole purpose is to keep coolant from entering the oil sump if the water pump shaft seal should fail. The empty cavity is vented to atmosphere via the small nipple and 3" section of hose that's run down under the frame. SHOULD any coolant leak into this space, the coolant drains out of the weep hole's drain tube. IF this drain tube were to collect water in it and freeze, THEN it's possible for enough coolant to fill the cavity and to pressurize into the oil sump. But it's not likely as the block warms up with usage, and the water in this cavity will warm, and thus, melt any ice in the tube. Being clogged with mud would be a more probable culprit
It's also possible, but not probable for oil to enter the coolant system the same way, but you have to have a failed oil seal around the water pump shaft, a clogged weep hole, full weep hole cavity, AND a pressurized sump - which it isn't.
Brings to mind the question as to the quantity of coolant you are adding or have added to replenish the system requirements?The issue I am having is that the entire 3+ feet of breather hose for the weep hole will completely fill up with coolant if I don't drain it after every ride. I have the XMR and that hose for the weep hole runs to the top of the machine behind the gauge cluster. I understand a drop or two may be present in the tube but it should not push enough coolant to fill that hose after a few hours of riding. I inspected the seal and opted to take it back to the dealer to have them fix this correctly although I do not have much faith in the work they are doing.
So NOT your machine but something to consider.
I have seen KTM motors where when the blow a head gasket the cooling system gets pressurized and it pushes coolant out the overflow. If this machine has a separate overflow this should not be your problem but if the "weep hole" is your overflow as well then there are plenty of things that could cause it from a bad coolant cap to a blown head gasket. If possible check for HC hydrocarbons in the radiator or reservoir and if you detect HC in there it is likely a head gasket, if not that is unlikely.
I have seen KTM motors where when the blow a head gasket the cooling system gets pressurized and it pushes coolant out the overflow. If this machine has a separate overflow this should not be your problem but if the "weep hole" is your overflow as well then there are plenty of things that could cause it from a bad coolant cap to a blown head gasket. If possible check for HC hydrocarbons in the radiator or reservoir and if you detect HC in there it is likely a head gasket, if not that is unlikely.
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