My Yanmar 2GMF overheated this weekend for the first time. Was running for about 45 min at 2000 rpm. Decreased to about 1000 rpm for about ~2 min, then went to idle forward to pull into the slip.
Just a moment before I really needed a lot of power to keep the boat off of the dock in some heavy Charleston current, the temp alarm came on and when I went hard astern, the engine noticably bogged down. A well placed fender prevented a lot of damage to a neighboring boat.
I've not ruled out the I simply just decreased the RPMs too quickly which didnt give the engine time to cool, but from reading various posts on this list, it looks like there are several common problems that cause overheating.
In the mean time, I would like to add an engine temperature gauge so that I can keep track of what is going on. I'd like to add the gauge without affecting the current warning light and alarm.
Is this possible or do I have to get rid of the stock temp sender to install a sender for the gauge?
If anyone has added a gauge - what parts did you use and where did you locate the actual gauge?
Hoping someone can save me some research time.
Thanks,
Dan M., J-30, "White Dolphin"
