Dougcole
Guru
8KW Kohler on 2002 mainship 400T
Was running fine until I did a coolant change, now when I put it under load it overheats. I'm getting a reading of about 185 degrees on my laser gun before it shuts itself down.
This was the first time I have changed the coolant on this generator as we got the boat two years ago. To my knowledge the coolant has never been changed prior to this time. There are 430 hours on the genset, we put about 250 of those on it with no issues at all.
My first thought is that I had an air bubble in the system, so I let it run for a while with the cap off, but that did not help. There are two drains for the coolant, one high on the block and one at the bottom of the Heat Exchanger. I let about 6 ounces of coolant run out of the higher drain hoping to clear a possible bubble, but that didn't help either.
Any ideas? Is there another way to bleed it? Maybe the thermostat got some crud in it and is now stuck?
Anyone know how to access the T-stat on this genset?
Thanks in advance.
Doug
Was running fine until I did a coolant change, now when I put it under load it overheats. I'm getting a reading of about 185 degrees on my laser gun before it shuts itself down.
This was the first time I have changed the coolant on this generator as we got the boat two years ago. To my knowledge the coolant has never been changed prior to this time. There are 430 hours on the genset, we put about 250 of those on it with no issues at all.
My first thought is that I had an air bubble in the system, so I let it run for a while with the cap off, but that did not help. There are two drains for the coolant, one high on the block and one at the bottom of the Heat Exchanger. I let about 6 ounces of coolant run out of the higher drain hoping to clear a possible bubble, but that didn't help either.
Any ideas? Is there another way to bleed it? Maybe the thermostat got some crud in it and is now stuck?
Anyone know how to access the T-stat on this genset?
Thanks in advance.
Doug