Fjordklubben

Hi, I use a 5,5 mm insert in the center hole of the thermostat housing. Experiencing very stAble temperatures since that modification. I used a brass bar and press fitted it. Of course the rest of the cooling system has to be in good working order. However the center hole determines the bypass flow ...

Tried 6,5 mm today (started with 5, 5,5 and 6) on both engines. temperaure comes up a bit higher about 3 to 5 degrees. A bit more fluctuation when going on / of trottle. Also a bit more difference beween the engines compared to 6mm. Looking at the current water temperature it is best to see how it a...

Indeed its about the center hole in the thermostat housing of the original sea water cooling. The temperature will stay close to thermostat temperature around 55 to 60 instead of a quarter to half way up the guage. With a hole of 7,5 and clean and good shape engine it will work ok, but you will see ...

I have the original seawater cooling

When placing a restrictor in the circulation pump, where should it be located, suction or discharge side and what size? I still wonder what the original size should be of the thermostat cover bypass because it made a tremendous difference on both engines by reducing the size of this bypass. It shoul...

Dear fjord owners, For everyone still running the aq170 and finding cooling unreliable even after closing out all the obvious and all elements brought in good shape: I found a solution for cooling problems on the volvo penta aq170 b30 engine. Of course al the obvious things have to be checked, but s...