Could just be the pump failing or clogged then. It is indeed water pressure which lifts the jets. They have a valve inside which doesn't open the jet until it is fully extended so the water pressure lifts the jet first, then sprays out. With air in the system this compresses such that the valve never opens, and without enough pressure from the motor you see the same effect.
The caps of the jets need to be lifted to unhook them from the jet itself, in order to remove the jets from the bumper. I'll get some pics of that later. Its worth noting that after 20 years the jets take a set to the bumper and so need to go back in exactly the same place if they are removed, otherwise the caps don't close. When a used part is swapped in it can take a fair bit of adjustment to get it to sit properly, plus I find that they need to go in the same position. Putting a right hand jet in the left side or vice versa can be a right pain.
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15th November 2020, 11:36 AM
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