Swirl pot for diesel fuel

[Bi111ion]

Following the article in PBO I am fitting a swirl pot in my Oyster 39 with Beta 50. How high should the swirl pot be relative to the injector pump? I am thinking about the return line and that it probably is not under much pressure. The diesel tank is below the engine and there is an racor like filter then an electric lift pump.

For those who did not see the article the swirl pot is an idea borrowed form motor racing to prevent air entering the fuel line. In this case from choppy sea or healing rather than fast cornering.

 

[Cerebus]

Any links that do not infringe copyright of PBO?

The return line should as you say be low pressure.

Sounds like a device designed to solve a rather negligible problem that could be solved in a different manner quite cheaply.

But, after a second read you say the tech comes from car racing that I believe in quite wholly as devising great products.

Without knowing more I am useless to you. No instructions included.

Look forward to more knowledgeable responses and hope your engine runs with no air bubble.

 

[Plum]

Following the article in PBO I am fitting a swirl pot in my Oyster 39 with Beta 50. How high should the swirl pot be relative to the injector pump? I am thinking about the return line and that it probably is not under much pressure. The diesel tank is below the engine and there is an racor like filter then an electric lift pump.

For those who did not see the article the swirl pot is an idea borrowed form motor racing to prevent air entering the fuel line. In this case from choppy sea or healing rather than fast cornering.

Are you intending to fit it to remove air from the return line? Why? Where is the air coming from?

 

[Refueler]

Cannot see the point ... only time I have seen an engine suffer from sea motion is when tank is near empty ... and nothing after the tank can ever cure that.

 

[geem]

Cannot see the point ... only time I have seen an engine suffer from sea motion is when tank is near empty ... and nothing after the tank can ever cure that.

It can, but it's not worth doing in my opinion. When I used to race British Offroad Championships, many years ago, we had trouble with keeping fuel in the fuel injection pump that was in the tank. The pump would pick up air as the motion was so bad when racing off road. To solve the problem, we fitted an inline injection pump and fed that pump from a mini fuel tank made from a fire extinguisher. The fuel from the main tank came into the fire extinguisher halfway up. The intake for the injection pump was off the bottom. The return off the top of the fire extinguisher went back to the main tank.
Any bubbles entering the fire extinguisher tank were always above the fuel pick up for the injection pump. It never missed a beat after this mod, regardless of how rough the terrain was.
Like I say though, over kill for a diesel engine in a yacht.