vullnet
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Posts: 97
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Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 20, 2021 18:27:08 GMT -7
Went for a ride today, noticed when I parked it was running at 212F and was spewing distilled water all over the radiator(i used water wetter + distilled) let it sit for a few hours,went to ride it again and it stayed at 212 for the 10 minute ride home with me going double to speed limit so the bike doesn't heat up. Got home, noticed that only one fan spins, and that the right fan doesn't spin at all. I'm assuming that the reason it was spewing liquid was from the second fan not working and it overheating, saw the idle temps and it went up to 249 .
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terrys
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Registered: Mar 1, 2021 0:48:28 GMT -7
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Post by terrys on Jul 20, 2021 20:02:16 GMT -7
When you are riding at speed, the resulting airflow is more than enough to keep the engine cool. The fan is only there to push air through the radiator when you are going very slow/stopped. If the bike is spewing water out at low temperatures (and 212 is not really very hot) then more likely you have a failed radiator cap. The radiator cap's job is to hold pressure in the cooling system, the pressure (and any coolant added to water) increases the boiling point to about 270F. If the cap won't hold pressure then the coolant can physically boil in the engine at lower temperatures and the resulting steam blows coolant out of the overflow reservoir.
There are separate fuses for the two fans; the main fan is on the left side and has a 15A fuse, the sub-fan has a 10A fuse; they share a common relay so should be coming on together; if they don't I'd check the sub fan fuse, and make sure the blade is free to spin and not wedged by a bit of debris. The fan fuses are located in the rear-most fuse box under the left side air scoop; #5 is the subradiator fan fuse.
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Post by RedAndBlack on Jul 24, 2021 20:56:48 GMT -7
I believe the second fan doesn't come on until a certain temperature but I can't remember.
As for the shooting coolant, you may have filled the reservoir too full. Even to the full line is pretty high and may cause the coolant to expand enough to start shooting out of the overflow. I only fill my bikes to the low line but I do trackdays in the desert, so overexpansion of the coolant is a typical problem.
249 is pretty high though. You may not have purged the air completely out of the system and you may have a bubble stuck in your pump. Water pumps do not push air, making such an issue a problem that won't go away. Also, those types of aftermarket coolants don't do very well with OEM coolants and mixing. You really have to completely clean the system out before putting in a new type of coolant.
Is this right after a coolant change? Maybe detail how you did your coolant change, maybe we can find out the possible issue
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vullnet
Junior Member
Posts: 97
Likes: 13
Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 25, 2021 18:18:39 GMT -7
I believe the second fan doesn't come on until a certain temperature but I can't remember. As for the shooting coolant, you may have filled the reservoir too full. Even to the full line is pretty high and may cause the coolant to expand enough to start shooting out of the overflow. I only fill my bikes to the low line but I do trackdays in the desert, so overexpansion of the coolant is a typical problem. 249 is pretty high though. You may not have purged the air completely out of the system and you may have a bubble stuck in your pump. Water pumps do not push air, making such an issue a problem that won't go away. Also, those types of aftermarket coolants don't do very well with OEM coolants and mixing. You really have to completely clean the system out before putting in a new type of coolant. Is this right after a coolant change? Maybe detail how you did your coolant change, maybe we can find out the possible issue This was about a month after the coolant change. I wanna say i put more than 300+ miles on it. It was fine until last sunday. I followed a youtube video where I filled it with distilled, let it run I believe, drained it, filled it again until there was no more blue. Then I closed the overflow and filled it through the radiator, overfilled slightly then tilted the bike a bit to drain some, filled the resorvoir and my dumbass overfilled it again. Ran fine up until last sunday. Temps were holding a whole lot cooler. |
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Post by RedAndBlack on Jul 25, 2021 21:01:00 GMT -7
I believe the second fan doesn't come on until a certain temperature but I can't remember. As for the shooting coolant, you may have filled the reservoir too full. Even to the full line is pretty high and may cause the coolant to expand enough to start shooting out of the overflow. I only fill my bikes to the low line but I do trackdays in the desert, so overexpansion of the coolant is a typical problem. 249 is pretty high though. You may not have purged the air completely out of the system and you may have a bubble stuck in your pump. Water pumps do not push air, making such an issue a problem that won't go away. Also, those types of aftermarket coolants don't do very well with OEM coolants and mixing. You really have to completely clean the system out before putting in a new type of coolant. Is this right after a coolant change? Maybe detail how you did your coolant change, maybe we can find out the possible issue This was about a month after the coolant change. I wanna say i put more than 300+ miles on it. It was fine until last sunday. I followed a youtube video where I filled it with distilled, let it run I believe, drained it, filled it again until there was no more blue. Then I closed the overflow and filled it through the radiator, overfilled slightly then tilted the bike a bit to drain some, filled the resorvoir and my dumbass overfilled it again. Ran fine up until last sunday. Temps were holding a whole lot cooler. Well sounds like you did it correctly. Odd you're seeing temps that high. Maybe the coolant pump has failed. Any small leaks. Coming from the coolant pump area? |
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vullnet
Junior Member
Posts: 97
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Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 26, 2021 13:06:47 GMT -7
This was about a month after the coolant change. I wanna say i put more than 300+ miles on it. It was fine until last sunday. I followed a youtube video where I filled it with distilled, let it run I believe, drained it, filled it again until there was no more blue. Then I closed the overflow and filled it through the radiator, overfilled slightly then tilted the bike a bit to drain some, filled the resorvoir and my dumbass overfilled it again. Ran fine up until last sunday. Temps were holding a whole lot cooler. Well sounds like you did it correctly. Odd you're seeing temps that high. Maybe the coolant pump has failed. Any small leaks. Coming from the coolant pump area? Nope, no leaks . I'll post some pics of the day it leaked. imgur.com/a/ZKKh6DHthe video with the fan is me showing that it's stuck and kind of hard to move. |
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Post by RedAndBlack on Jul 26, 2021 20:46:22 GMT -7
Hmmm. I dunno.
If it were me, I would pull the cover off the reservoir and see if you can determine where the leak came from. See if it originated from the overflow hose on the coolant reservoir or see if you have some dried up coolant from the radiator cap. If it's from the overflow, you just had too much coolant. If it's from the cap, maybe replace it.
235 on a bike thats turned off isn't unheard of. 249 is pretty high but on a REALLY hot day after doing some high RPM or low speed riding, I could see it getting that high after the bike is turned off.
Report back and let us know what you figure out! good luck!
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vullnet
Junior Member
Posts: 97
Likes: 13
Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 27, 2021 18:38:58 GMT -7
Hmmm. I dunno. If it were me, I would pull the cover off the reservoir and see if you can determine where the leak came from. See if it originated from the overflow hose on the coolant reservoir or see if you have some dried up coolant from the radiator cap. If it's from the overflow, you just had too much coolant. If it's from the cap, maybe replace it. 235 on a bike thats turned off isn't unheard of. 249 is pretty high but on a REALLY hot day after doing some high RPM or low speed riding, I could see it getting that high after the bike is turned off. Report back and let us know what you figure out! good luck! Yea ive seen idle temps get high with my old coolant, like 225~ , its just the fact that it never went below 212 once it got there while riding. I'll bring my tools home from work tomorrow and check it out. |
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Post by willl84 on Jul 28, 2021 4:29:07 GMT -7
Hmmm. I dunno. If it were me, I would pull the cover off the reservoir and see if you can determine where the leak came from. See if it originated from the overflow hose on the coolant reservoir or see if you have some dried up coolant from the radiator cap. If it's from the overflow, you just had too much coolant. If it's from the cap, maybe replace it. 235 on a bike thats turned off isn't unheard of. 249 is pretty high but on a REALLY hot day after doing some high RPM or low speed riding, I could see it getting that high after the bike is turned off. Report back and let us know what you figure out! good luck! Yea ive seen idle temps get high with my old coolant, like 225~ , its just the fact that it never went below 212 once it got there while riding. I'll bring my tools home from work tomorrow and check it out. I have a 2WDW flash so it lowers the temps that the fans come on. I'll routinely see ~208 in traffic but even riding slow (20-30MPH) it doesn't come down much. This bike just like sto run warm. I'm used to mt old TLR and even my Super Hawk that both liked to run around 180 when riding. My MT will only get to 180ish on the highway at cruising speed. Other than that it's always 190-200 |
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vullnet
Junior Member
Posts: 97
Likes: 13
Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 28, 2021 15:22:17 GMT -7
Hmmm. I dunno. If it were me, I would pull the cover off the reservoir and see if you can determine where the leak came from. See if it originated from the overflow hose on the coolant reservoir or see if you have some dried up coolant from the radiator cap. If it's from the overflow, you just had too much coolant. If it's from the cap, maybe replace it. 235 on a bike thats turned off isn't unheard of. 249 is pretty high but on a REALLY hot day after doing some high RPM or low speed riding, I could see it getting that high after the bike is turned off. Report back and let us know what you figure out! good luck! Well refilled it and turned it on, its coming out of the fins I guess. Kinda hard to see but heres a vid imgur.com/a/11s887HAnd my car blew a head gasket earlier I think so I had to tow it, now i'm carless and bikeless lol. |
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vullnet
Junior Member
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Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 28, 2021 16:10:09 GMT -7
debating if i should change back to my old JB welded radiator that was working.
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vullnet
Junior Member
Posts: 97
Likes: 13
Registered: Sept 23, 2020 17:59:45 GMT -7
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Post by vullnet on Jul 28, 2021 19:05:52 GMT -7
Ended up swapping for the old rad, works much better now.  This was the left side of the radiator, which weirdly enough was the fan that worked. Waste of $250 |
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Post by willl84 on Jul 29, 2021 4:03:29 GMT -7
Ended up swapping for the old rad, works much better now. This was the left side of the radiator, which weirdly enough was the fan that worked. Waste of $250 So the fan rubbed right through the radiator. that's a new one! |
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Post by RedAndBlack on Jul 29, 2021 9:49:36 GMT -7
Damn, that's a new one for sure!!
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