Transcript is auto-generated.

hi youtubers jeff cote here with uh  pacific yacht systems all right we've  got a question from isaac  isaac asks a question that is actually  pertinent to all of us  he asks should the engine ignition  switch glow plugs engages  be connected to the engine battery or  house and do i make sure the keys are  not left on and flatten the start  battery  two questions here um we're trying to  meet this within their kind of a little  time allotted  so anything that's related to starting  an engine or running an engine  should be running off your engine  battery the reason i do that is  i i think it's important to have  isolation or separation between what i  consider mission critical loads  and also house loads anything related to  your engine  and you're right isaac like engine  gauges uh fuel pump  uh blowers all these things that are  essential to running your engine  should be running off your engine  battery and not out the house  because you don't want to have to worry  about a depleted house  not being able to run those essential  loads like gauges  while you're running your engine so  that'd be the first reason so yeah keep  it all on the engine battery much  simpler  and that way you always know that your  engine battery is there just to do one  purpose which is run  all engine related loads the sub  question there which is actually a  really good one is how do i make sure  the keys are not left on and flatten the  start key  so a moment ago  i realized how beautiful uh the  no oral pressure sender is i remember  this  uh looking at my own gauges on my boat  and i was trying to figure all this out  looking at the back of my instrument  panel and i'm so confused  all these wires and i'm looking at like  every time i turn my ignition key  on if my engine is not running i have  this  loud buzzing sound that buzzing sound  serves two purposes one it tells me that  my  engine key is turned on and that there  is no oil pressure  right on my engine and i know that  because there's a sensor that  is there waiting to sense some sort of  oil pressure  now what it also tells me it tells me  obviously that my engine is not running  and that my key is on but it also  reminds me and this is really  powerful it reminds me that my no oil  pressure sender is working  every time i'm about to start my engine  it's telling me that whenever i'm going  to lose oil pressure  which can happen on a boat and it's  definitely catastrophic  not sure if i pronounced it right but  pretty close that basically  i'm going to get an alarm so if on your  boat all of us  when you turn the ignition key on not to  start but just  on so the instrument panel is energized  you want to make sure that  your oil pressure sender is actually  giving you an alarm  and telling you that your engine is not  sensing oil pressure and therefore is  alarming and the moment that you start  the engine and the oil pressure  builds up then the alarm is going to go  away and then you're going to stop  having that annoying sound which reminds  you that  obviously you have oil pressure and also  that your engine is running  and at the moment you stop your engine  you should hear that no oil pressure  alarm  ring again reminding you that your oil  pressure sender is working  and then you turn off the key and then  you have perfect silence  and that is how modern  engine panels run  thank you for watching this pys video if  you've got further questions  ask them down below or go on our website  to fill one of the forms  also support to keep this youtube  channel  ad free by donating on paypal or  purchasing some merchandise  on our store don't forget to subscribe  and thanks for watching