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Spyder Overheats at High Speed - any thoughts?
- Thread starter tjranch9
- Start date
It's probably not really running too hot/overheating - it's most likely just the gauge showing that the temp is now hotter than it was when riding at 50mph, but if the indicator is still anywhere below the H mark, then it's fine! It's the rapid increases until it pegs out well past the beginning of the H zone that you've gotta watch out for! :lecturef_smilie:
And also watch out for those temp gauges that rapidly climb to about half way then never move!!
Cos those gauges are almost certainly 'damped' to stop the indicator rising and falling as the engine load & therefore cooling system load increases until the thermostat opens & the temp subsequently drops - manufacturers do this to stop people who don't know any better from complaining about the temperature gauge working properly and showing the continual fluctuation of temp as the engine load increases & falls, causing a continual variation in cooling system temperature as the thermostat opens & shuts &/or the fans spin up or slow down! :sour: A properly working un-damped temp gauge WILL show those fluctuations; while a damped gauge WON'T - and the damped gauges probably won't show the rapid temp increase into the danger zone caused by a burst hose, holed radiator/reservoir, or a blown head gasket until it's too late to do anything about it either! :banghead:
And also watch out for those temp gauges that rapidly climb to about half way then never move!!
Cos those gauges are almost certainly 'damped' to stop the indicator rising and falling as the engine load & therefore cooling system load increases until the thermostat opens & the temp subsequently drops - manufacturers do this to stop people who don't know any better from complaining about the temperature gauge working properly and showing the continual fluctuation of temp as the engine load increases & falls, causing a continual variation in cooling system temperature as the thermostat opens & shuts &/or the fans spin up or slow down! :sour: A properly working un-damped temp gauge WILL show those fluctuations; while a damped gauge WON'T - and the damped gauges probably won't show the rapid temp increase into the danger zone caused by a burst hose, holed radiator/reservoir, or a blown head gasket until it's too late to do anything about it either! :banghead:
BLUEKNIGHT911
Sadly Passed Oct 2024 - RIP
:agree: .... and except when my coolant was 16 oz. LOW .... it always reads 4 bars ( 2014 RT ) no matter what the ambient air temp is, or what speed I'm going..... The only thing I think could effect that would be something wrong with the THERMOSTAT .... or totally mud clogged radiators ( which is not a likely occurrence )GOOD LUCK .... Mike :thumbup:
It goes up to 7 bars on the gauge..
BajaRon
Well-known member
OK, good info. That means you are, most likely, overheating. I've not heard of a faulty gauge.
Many think 5 bars is too hot, which it is not. That is why I asked.
You've got some good advise for things to check here. The holding tank has split on many Spyders. Not only does this lose coolant, but it also renders the system unpressurized. Allowing the coolant to boil at a much lower temperature. This will certainly create and overheating situation.
Debris in the radiator is also a good possibility.
A stuck thermostat will also do this. But I would check the easy stuff first. If the system is full and no tank leaks, then go for the thermostat.
Good luck!
BLUEKNIGHT911
Sadly Passed Oct 2024 - RIP
Little Blue
SpyderLovers Ambassador
What was your Fix?
:chat:...Well, I am still curious about your Fix.
What did you find out? What was wrong with the Spyder.
Information is still needed to help others with this problem.
Stay Healthy. ....:thumbup:
:chat:...Well, I am still curious about your Fix.
What did you find out? What was wrong with the Spyder.
Information is still needed to help others with this problem.
Stay Healthy. ....:thumbup:
BLUEKNIGHT911
Sadly Passed Oct 2024 - RIP
I thought my reservoir was full also ......WRONG ....... So I added approx. two cups ( 16 oz. ) well it still wasn't full enough !!! .... I added some more until I could actually see it in the internal strainer ..... well that was a bit too much, and after I warmed up the engine the Spyder over-flowed the excess..... Then no more over-heating issues :clap: ..... Mike :thumbup:
Lew L
Well-known member
.
About a year and a half ago my thermostat broke into 2 pieces and blocked a water pump passage ( they are integral about $250). 4 hose connections on the pump,
one is very wimpy. Replacement/ pump thermostat had an internal leak and was replaced. It's not a terrible job to replace BUT it ain't easy by a long shot.
I hope your overheating problem is a simpler fix.
Lew L
About a year and a half ago my thermostat broke into 2 pieces and blocked a water pump passage ( they are integral about $250). 4 hose connections on the pump,
one is very wimpy. Replacement/ pump thermostat had an internal leak and was replaced. It's not a terrible job to replace BUT it ain't easy by a long shot.
I hope your overheating problem is a simpler fix.
Lew L
Mikey
Well-known member
When you say your rad's are clean, have you looked at both sides of the rad's, on both sides?
:agree: And even if both radiators LOOK clean enough on both sides, it's important that the gaps between the fins aren't clogged with grass seeds, mud, or some other substance/debris! :lecturef_smilie: So you might want to check the temps in your radiators, top & bottom; &/or check the top & bottom radiator hoses with a remote/no touch temp gun, just to see exactly what's going on with your cooling system - hot temps both top & bottom would suggest the radiators aren't as clean as they appear! :shocked:
With a bit more playing around with that temp gun, you might even be able to tell if your coolant really is getting as hot as the gauge suggests it is; and you might be able to see if the thermostat &/or water pump are working as they should too?! :dontknow:
Aaand another thought or three, you've got a cat delete pipe installed, don't you?? I wonder if your engine is running a bit too lean or pinging a bit (what octane gas are you running?!?) Any of those could push the temps up on high speed runs! :shocked: As would an excessively restrictive baffle in the cat delete; a partially blocked muffler; or a partially crushed/bent exhaust pipe closer to the cylinders. Soft/collapsing raditaor hoses; coolant that's contaminated, diluted, or just too old; or a dodgy radiator cap that doesn't keep the correct pressure in the system could all do it too - and there's probably more that I can't recall atm .... Lotsa other things worth checking maybe?? :dontknow:
Just Sayin'
With a bit more playing around with that temp gun, you might even be able to tell if your coolant really is getting as hot as the gauge suggests it is; and you might be able to see if the thermostat &/or water pump are working as they should too?! :dontknow:
Aaand another thought or three, you've got a cat delete pipe installed, don't you?? I wonder if your engine is running a bit too lean or pinging a bit (what octane gas are you running?!?) Any of those could push the temps up on high speed runs! :shocked: As would an excessively restrictive baffle in the cat delete; a partially blocked muffler; or a partially crushed/bent exhaust pipe closer to the cylinders. Soft/collapsing raditaor hoses; coolant that's contaminated, diluted, or just too old; or a dodgy radiator cap that doesn't keep the correct pressure in the system could all do it too - and there's probably more that I can't recall atm .... Lotsa other things worth checking maybe?? :dontknow:
Just Sayin'
Last edited:
yes I have
BertRemington
New member
From 7 bars to 4 bars when?
TJ -- under what riding conditions does your gauge return from 7 bars to the normal 4 bars?
TJ -- under what riding conditions does your gauge return from 7 bars to the normal 4 bars?
BLUEKNIGHT911
Sadly Passed Oct 2024 - RIP
I suggest you do what I did ..... OVER-fill it a bit ..... The Spyder will spit out any over-fill in the system without any harm, that's what mine did .... NO more over-heat issues, even when the Spyder's ambient temp gauge hit 125 F ..... Mike :thumbup:
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