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Got a technical question or a boating query? Post your quandaries here and pick the brains of the WW team. You can also add your answers to others' questions, or browse through previous answers.

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Ultrasound Tank Gauages

I read with interest the item by Mark Langley headed "Spring Improvements" in the latest issue of W.W, in particular the item about tank gauges that use ultrasound to measure levels.
I have searched the internet and can only find mention of gauges that require the sensor to be screwed to the top of the tank.
Mark refers in his article to gauges that require no cutting into tanks and pipework and I would be grateful if you could give me any information you have as to the manufacturers of such gauges.
Many thanks,
Gary Wilson
(Post by Robert Cowling on behalf of Gary Wilson)

Asked by: Robert Cowling   | Monday 5 March, 1.39pm | 1 answer

Perkins, no thermostat?

My engine is a Perkins 100 series with a Perama Marine conversion, indirect cooling. On a sunny day going against the current on a river the engine temp gets to 70°C. On a canal going slower to about 40°C and on a cold day it barely rises off the bottom of the dial. I assumed either a thermostat stuck open, or missing. I have a downloaded copy of the manual and there appear to be two variants, one with the thermostat behind the water pump, one with it in a housing. I can't see a housing so I took the pump off and there's nowhere behind it to fit a thermostat. Am I being stupid? Or is it possible a previous owner has built a Franken-engine using parts from both types so there is no place for a thermostat?

Asked by: Phil Thane  | Sunday 4 March, 4.24pm | 4 answers

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