Yanmar_1700
Member
I happen to glance down at my temp gauge and noticed my normal 170 degrees was 210 on my YM1700. I looked at the overflow botlle and it was at the same level. When it cooled down I checked the radiator which was missing about 1/2 a gallon. I found a small leak on the lower radiator hose and. My question is why didn't the water from the overflow go into the radiator when it went low? I check the overflow everytime I get on. I replaced the original radiator cap with one from NAPA which was rated at 7lbs. Do I have to prime the hose that goes from the overflow bottle for this to work? Do I need a special radiator cap?