MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone.
You are invited to join our public Boat Repair Forum to seek assistance from other members.
You may also visit the Boat Motor Manuals section of our site to obtain a service manual.
Did you ever find out what the problem was? Im having the same issue with my volvo penta 125a. Steam's out of the antifreeze cap after running for a couple of minutes.OK will look into all that, current problem is radiator cap leaks at high RPMs would like to know what the normal operating temp for this engine is, currently running 180 degrees running in fresh water only but stays there even when the radiator cap goes blowing out antifreeze. Only reason we shut it down was the steam from the antifreeze burning off, temp gets to 180 and stays there no matter what RPMs you run or how long unless of course it runs out of coolant again.