Messed up on my build need radiator advice
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@spookdog said in Messed up on my build need radiator advice:
@dan28
The manual says that the cooling works by āthermo ~ syphonic action in conjunction with the pumpā, but basically when the coolant in the cylinder sleeve is hot enough to actuate the thermostat and open up, the pump will move it. I donāt know any other motor that has the radiator physically above the motor to rely on heat rising through convection
I guess Iām saying that Iād test run it with the rad mounted where you want it and see if it works. As long as the pump moves the coolant I donāt see any problem
I could be totally wrong though!
If you look at yours the water goes out the bottom rad hose along the metal pipe an to the water pump
The problem I have using the dtr rad the water goes out the bottom hose an then has to travel upwards to the water pump
A smaller radiator mounted higher up would solve the issue an the water would travel down as intended
I m not sure how to add photos on here -
The pump would still work and draw coolant up, it doesnāt rely on the coolant āfallingā down into the pump. Itās strong enough to lift fluid 2 foot. If it looks good, try it. If not do something that you like the look of!
There is a tutorial on this site for posting pics, if I can suss it you can! I use a phone and imgur (app) to host mine. Do a search, please, it sounds like a wicked build!...
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@spookdog I would rather it worked as yamaha intended so would like the radiator higher than the water pump
I trail fitted the gas gas radiator it will fit but as it is approx 15cm shorter then there will be less coolant compared compared to how much is in The standard radiator not sure if that's going to be an issue -
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@dan28
My temp gauge barely goes up a CM, only time it went up halfway was when the head gasket blew on the hot day (2 days ago). I could run a 15cm smaller radiator on my bike without heat issues.
Put a 12v fan on it with a temp probe to the radiator and itād be fine, IMO... -
@spookdog after measuring the finned part of the gas gas radiator is only 15cm its literally half the size of the original
I remember callum saying he had issues with his bike running hot an he used the standard radiator
I would rather use a radiator closer to the intended size -
@calum
I always thought ideal temp was as close to 100 as possible? Thatās why the radiator cap is pressurised, to stop the coolant boiling but get it up there? I might be wrong, itās been a long time since I looked into it and it was a car... -
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@declan
Itās weird, my temp gauge doesnāt rise much at all in stop~start nightmare traffic. What does happen is my gear change gets āstickyā, it wonāt go into neutral without a struggle. Thatās when my engine smells hot.Trouble is a radiator is doing next to nothing if it doesnāt have any airflow forcing convection. Sitting in traffic is the worst possible scenario. I donāt have any cooling problems, if I did Iād put 1 or 2 12v fans on the radiator. The kind you get in computers for CPU cooling but bigger, thereās loads out there. have a temperature actuator probe that sits in the fins of the radiator, so they only come on when needed. If the problem was bad Iād shroud the fans th the radiator as well...
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