Re: water temp gauge kit for 57 Johnson?

[DAN ANDERSON]

I bought a Heat Chek (kit like pictured) off eBay. My 1957 EV Lark had one on it & I wanted a kit to see what it was about. You can look on MarineEngine.com in the J/E Accessories Parts book section. Starting in 1972 they had one kind of sensor (still available) & by 1976 had changed to the other style which is kinda universal. Has a bracket that mounts the sensor up against the head/block depending on application.
The problem comes with the gauges. They are too slow to react to save your motor in most cases. That & unless you drive with one eye on them all the time you don’t notice it climbing. An overheat is usually a quick thing & can be catastrophic! That is why later model engines have gone to horns & speed limiting systems to get the operators attention. JMHO

Dan in TN