I have read the FAQ page regarding starting a seagull and it says that the exhaust pipe should be just a few inches in the water when starting. Does this just apply to starting or is it also when running the engine.
Does it really matter what depth the prop is in the water?
The reason I am asking is that I am buying a longshaft engine but am worried incase it may be too long and of no use to me
Help needed please
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As a rough guide the exhaust needs to be a couple of inches under any more and you will have problems,see the main site ,there is a section about identifying your motor along with suggested transom heights.
if the exhaust outlet is to far under there will be to much back pressure.
Oh and welcome to the wonderfull world of seagulls!
if the exhaust outlet is to far under there will be to much back pressure.
Oh and welcome to the wonderfull world of seagulls!
regards paul
Measuring from the top of the transom or mounting bracket to the water level will give you an indication of the model you require.
14" or so would be about the maximum for a standard shaft model.
The original handbook and the FAQs suggest that moving the crew forward so that the exhaust outlet is not too deeply immersed will aid starting but I find my Featherweight starts OK when much more deeply immersed than recommended. When running performance may be affected if the exhaust outlet is too deeply immersed but it is important that the water pump housing is completely immersed.
There is a big jump to the size of the long shaft models, 6" in fact. Which means that if a standard shaft model is only just a bit too short for you you could find a long shaft model is rather more deeply immersed than ideal.
If necessary a depth adjusting collar can be fitted to raise an engine which is too deeply immersed, although these are not suitable for the heaviest models (Silver and Century plus long shaft models).
14" or so would be about the maximum for a standard shaft model.
The original handbook and the FAQs suggest that moving the crew forward so that the exhaust outlet is not too deeply immersed will aid starting but I find my Featherweight starts OK when much more deeply immersed than recommended. When running performance may be affected if the exhaust outlet is too deeply immersed but it is important that the water pump housing is completely immersed.
There is a big jump to the size of the long shaft models, 6" in fact. Which means that if a standard shaft model is only just a bit too short for you you could find a long shaft model is rather more deeply immersed than ideal.
If necessary a depth adjusting collar can be fitted to raise an engine which is too deeply immersed, although these are not suitable for the heaviest models (Silver and Century plus long shaft models).