stingraymax
Petty Officer 3rd Class
- Joined
- Sep 11, 2004
- Messages
- 93
I am lost here.<br /><br />I have a 99 johnson 90Hp that is bleeding my wallet....<br /><br />I bought this engine last year and have had the following things replaced<br />. Piston ( was seized, was like this since I bought it, according to mechanic due to bad oil )<br /><br />. renewed all piston rings and top bearing while the engine was open <br /><br />. renewed the VRO unit <br /><br />. renewed the thermostats<br /><br />. complete new waterpump<br /><br />Since all these parts were replaced I had to break in the piston and rings, so I put pre mix in the tank for the first 8 hours additional to the seperat oil tank.<br /><br />Now I have taken the boat out 4 times and never went over 4800 rpm. And never had a problem.<br /><br />Today I wanted to go boating and the darn thing was verry hard to start but when it started it sounded and worked ok. The tell tale was normal.<br /><br />I didn't exeeded 4500 rpm for about 15 min. without a problem, then I took it WOT to 5500 rpm and after about 10sec the overheating alarm sounded and the engine went into slow. I powered down immediatly and shut it down, after 10 min. I started it again and went back to the docks without a problem at 3000rpm.<br /><br />Can somebody tell me what can be the problem of overheating at wot ?? <br />And is there a possibility that I damaged something when the engine overheated ?<br /><br />Thanks<br />Stef
