04-14-2017, 10:36 PM
The output of the oil cooler goes to the spark plug area and then back to the sump. The EOT sensor is in the return line from the head to the sump.
The output of the oil pump has two paths. One to the oil filter and out to the engine, transmission and all, and one to the oil cooler. The oil filter line has a relief valve called Pressure Relief Valve.
The oil from the pump TO the cooler does pass through a Relief valve (located in the pump and called Relief Valve).
On the oil schematic in the service manual in section 4, the valve is drawn such that it doesn't meter oil, just dumps it if there is over pressure. But, there is no explanation and no specs listed. It is a serviceable item though. Edit to add. I don't think it would make sense to limit flow to the cooler as the spark plug area is going to get hot fast, and that is not a good thing, thus the oil cooling there.
There are no temperature valves in the oil system shown anywhere or mentioned in the servicing procedures. Only the EOT sensor. I think your mechanic is blowing smoke. Or just figuring it works that way because some other bike does.
The output of the oil pump has two paths. One to the oil filter and out to the engine, transmission and all, and one to the oil cooler. The oil filter line has a relief valve called Pressure Relief Valve.
The oil from the pump TO the cooler does pass through a Relief valve (located in the pump and called Relief Valve).
On the oil schematic in the service manual in section 4, the valve is drawn such that it doesn't meter oil, just dumps it if there is over pressure. But, there is no explanation and no specs listed. It is a serviceable item though. Edit to add. I don't think it would make sense to limit flow to the cooler as the spark plug area is going to get hot fast, and that is not a good thing, thus the oil cooling there.
There are no temperature valves in the oil system shown anywhere or mentioned in the servicing procedures. Only the EOT sensor. I think your mechanic is blowing smoke. Or just figuring it works that way because some other bike does.