stormtracker
Cadet
- Joined
- Sep 16, 2008
- Messages
- 10
Hi everyone. I have a 1989 Johnson 88 SPL that I just fired up for the season.
After about 5 minutes at idle the overheat alarm sounds. It did the same thing last season, (in water as well as on muffs) but not all the time, and only at idle. Ran great at all speeds above idle with no alarm. Last year I replaced the water pump (but maybe stripped one of the bolts on the pump housing cover), thermostat kit ( that was a real pain), and hoses. The tell tale **** stream is always constant, and seems good. I pulled the hoses off the head and there is water flow out of them when running. I then, (with motor shut off), connected a hose to one end of the thermostat housing and blew into it while holding my thumb over the other hose fitting on the thermostat housing. I can blow into it with little resistance, and hear the air going somewhere in the lower part of the motor. Is this normal ? Or should it be a completely closed area in the thermostat housing until the thermostats open ? I was about to take the thermostat housing apart to make sure I put everything in properly, and nothing moved during reassembly, but it is so difficult due to limited space behind it that I figured I would ask here first. Also any tips on an easier way of doing this would be helpful. Any thoughts or comments would be appreciated.
Thanks
Stormtracker
After about 5 minutes at idle the overheat alarm sounds. It did the same thing last season, (in water as well as on muffs) but not all the time, and only at idle. Ran great at all speeds above idle with no alarm. Last year I replaced the water pump (but maybe stripped one of the bolts on the pump housing cover), thermostat kit ( that was a real pain), and hoses. The tell tale **** stream is always constant, and seems good. I pulled the hoses off the head and there is water flow out of them when running. I then, (with motor shut off), connected a hose to one end of the thermostat housing and blew into it while holding my thumb over the other hose fitting on the thermostat housing. I can blow into it with little resistance, and hear the air going somewhere in the lower part of the motor. Is this normal ? Or should it be a completely closed area in the thermostat housing until the thermostats open ? I was about to take the thermostat housing apart to make sure I put everything in properly, and nothing moved during reassembly, but it is so difficult due to limited space behind it that I figured I would ask here first. Also any tips on an easier way of doing this would be helpful. Any thoughts or comments would be appreciated.
Thanks
Stormtracker
