Bike shutting down

trackday use,not racing obvioulsy...

TheGodfather said:

i think mibridger read his at 108 or 118 , cant remember.

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108 in MRCK is engine hot error

Radiator Cap

I certainly wouldn?t run a 1.8 Bar radiator cap without replacing the hoses and clips. That said replacing the OEM hoses is not a quick job as removing the left-side lower hose is not as simple as it first appears. The good thing is you do not need to remove the fuel tank.

what,even to get to the thermostat? finally

Re: Radiator Cap

ok,so i'm just trying to get my head around it...

regardless of rad pressure cap,water temp will still be same,although wont boil till higher,if the thermostat is still reading the temp,and puts engine into limp mode/shuts down,because of temp reading,wont this still happen regardless of rad cap?

Mine was reading 112 degrees when the error light came on, it was definitely running hot all of the 4 days at Mugello.

Many other bikes were also running hot, Yamaha, Ducati and others I spoke to.

Mine is running stock fairing with an Ilmberger belly pan, I do have EvoTech radiator and oil cooler guards as well.


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OEM Hoses

scooby said:

what,even to get to the thermostat? finally

Click to expand...

To remove Part #3 you need to cut through the metal bands which secure it in place. After that it?s relatively simple albeit time consuming.

https://www.realoem.com/bmw/enUS/sh...7-BMW-S_1000_RR_19_0E21,_0E23_&diagId=17_1431

mibridger said:

Mine was reading 112 degrees when the error light came on, it was definitely running hot all of the 4 days at Mugello.

Many other bikes were also running hot, Yamaha, Ducati and others I spoke to.

Mine is running stock fairing with an Ilmberger belly pan, I do have EvoTech radiator and oil cooler guards as well.


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Click to expand...

112 while out on track or when you were back to the pits?

scooby said:

would deffo be sticking new hoses+clips on then if running a higher pressure cap.

a quick look at the table (i'm a bit geeky like that..) and 1.8bar raises the boiling point to about 117c, quite a big jump from the 105 a 1.2bar rad cap gives (bigger than i thought tbh.).

maybe something like a waterless coolant might be better for track use only?

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What's the point of changing hoses? They are not designed to work at higher pressure/temp?

Hoses

bmwbadboy said:

What's the point of changing hoses? They are not designed to work at higher pressure/temp?

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When you compare a Samco and OEM hose side by side you will see the difference. The former is much thicker and far better made.

Re: Hoses

I have a Gen1 and since I live in South Europe my bike temperatures in the track was high at around 103-105C while in the track. I changed to better liquid for cooling and did not see big improvement. Then I changed to a race water pump, Samco hoses and 1.8bar cap. There was an improvement especially when I used it in the track but still I and my mechanic wanted more...So I decided to go for the best solution I could think of...





The water temperatures are now 20-25 degrees lower and also the same stands for the oil temperature. If you are using your bike mostly in the track THIS is the best solution. Also I have to add that in the city traffic I had absolutely no problems (fanless). There is also a cheaper solution that might work. You can buy the additional cooler that goes behind your OEM and remove the fan. It will be better but the big package is huge improvement.

Re: Radiator Cap

scooby said:

ok,so i'm just trying to get my head around it...

regardless of rad pressure cap,water temp will still be same,although wont boil till higher,if the thermostat is still reading the temp,and puts engine into limp mode/shuts down,because of temp reading,wont this still happen regardless of rad cap?

Click to expand...

This was what I was thinking - doesn't a higher value rad cap simply stop the coolant being pushed back into the reservoir until a higher pressure is reached?

As for "waterless coolant", doesn't that actually make an engine run slightly hotter with the only advantage being that it never boils over?

Re: Radiator Cap

Gobert said:

This was what I was thinking - doesn't a higher value rad cap simply stop the coolant being pushed back into the reservoir until a higher pressure is reached?

As for "waterless coolant", doesn't that actually make an engine run slightly hotter with the only advantage being that it never boils over?

Click to expand...

dunno tbh,i was under the impression that it made the engine run cooler,maybe i just dreamt that bit up

Re: Radiator Cap

scooby said:

dunno tbh,i was under the impression that it made the engine run cooler,maybe i just dreamt that bit up

Click to expand...

I don't think there's much love for it from anyone apart from the people selling it / endorsing it.................

Re: Radiator Cap

scooby said:

dunno tbh,i was under the impression that it made the engine run cooler,maybe i just dreamt that bit up

Click to expand...

Thats what I got told as well, plus this is what Alpha is saying

• [h=2]Additional articles[/h]
• Due to the higher pressure you can use a smaller coolant reservoir and the heat conduction is improved
  
  weight: 0,046 kg
  [h=2]Delivery[/h]
• - Radiator cap

Re: Radiator Cap

Gobert said:

This was what I was thinking - doesn't a higher value rad cap simply stop the coolant being pushed back into the reservoir until a higher pressure is reached?

As for "waterless coolant", doesn't that actually make an engine run slightly hotter with the only advantage being that it never boils over?

Click to expand...

Yes

bmwbadboy said:

112 while out on track or when you were back to the pits?

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Hi, it was 112 in the pits, not sure when it happened as i was in survival mode.

Dealer has had my bike for 2 weeks and has not looked at it yet

Would someone with Carbonin fairings be kind enough to photograph the 'rad shrouding' so I can see what it's like? (A photo properly inside it to see how it fits against the radiator).

Mine is the stock fairing Alex, with an Ilmberger belly pan.
Still overheating though...


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mibridger said:

Mine is the stock fairing Alex, with an Ilmberger belly pan.
Still overheating though...


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Click to expand...

Fair enough but I'm thinking about my future