test tank depth

[Alsdad]

Can anyone tell me how deep the water should be in my test tank for a 1966 Johnson FD-20 C? Also, I'm ignorant about the technical terms like a cavater plate? What is that? Do I basically make sure the prop is in the water only or do I need to make sure the water comes up the shaft a certain amount to ensure water flow? thanks.

 

[kbait]

Re: test tank depth

A couple inches above the oval bump in the housing where the impeller is will be sufficient to immerse the impeller in water. They are not self-priming pumps.

 

[Alsdad]

Re: test tank depth

thank you very much.

 

[Vic.S]

Re: test tank depth

The anti-cavitation plate is the flat horizontal plate above the propeller.

It is more correct to call it an anti-ventilation plate because its purpose is to prevent air being drawn down into the propeller.

 

[wilde1j]

Re: test tank depth

Depth should be half way up the leg to allow for turbulence, one the motor starts.