My raw water a4 has run at 180+ degrees for the past five years. Vinegar flushes and pressure flushes with the water hose haven't changed anything. I finally pulled the thermostat and it had 140 stamped on the bottom, so I assume it's a 140 degree thermostat. It was cleaned in vinegar and placed in water on the stove. It opened at 160 degrees. Is it defective? If so, should I replace it or just leave it out and use a bypass valve?
I've been lurking on the site for the five years since I purchased JaVa.
The engine is an early '70s model that replaced the original 1963 model in my Morgan Tiger Cub, best I can tell. Can't imagine what caused the replacement. The engine was covered in rainwater for several years when JaVa was a derelict in a boatyard in the '90s and early 2000s after hurricane Fran. The previous owner r&r'ed it and it runs like a top, starts easily and has only stranded me when a coil failed on a 200 mile trip two years ago. (At the worst possible time, half-way through the extremely narrow Alligator/Pungo River Canal at night, with tugs/barges coming every hour. That's a story unto itself...)
After reading all the posts I can find about thermostats, I hope to get an opinion or two.
I've been lurking on the site for the five years since I purchased JaVa.
The engine is an early '70s model that replaced the original 1963 model in my Morgan Tiger Cub, best I can tell. Can't imagine what caused the replacement. The engine was covered in rainwater for several years when JaVa was a derelict in a boatyard in the '90s and early 2000s after hurricane Fran. The previous owner r&r'ed it and it runs like a top, starts easily and has only stranded me when a coil failed on a 200 mile trip two years ago. (At the worst possible time, half-way through the extremely narrow Alligator/Pungo River Canal at night, with tugs/barges coming every hour. That's a story unto itself...)
After reading all the posts I can find about thermostats, I hope to get an opinion or two.
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